Bio-sketch

Dr. Ashok Kumar Srivastava has done his B.Tech & M.Tech degree in biochemical engineering from H.B. Technological Institute Kanpur in 1976 & 1978. He received his Ph.D. degree from the McGill University, Montreal in 1990 He has 42 years of Industrial - Research - Teaching experience in the area of Biochemical Engineering & Biotechnology. He has been the faculty member in the Biochemical engineering & Food technology department HB Technological Institute Kanpur for 10 years. Thereafter he has been associated with Department of Biochemical Engineering & Biotechnology IIT Delhi for about 30 years where-in he had been the head of the department for three years. He is the recipient of several awards & scholarships e.g; National Overseas Scholarship award of MHRD, New Delhi for Ph.D. studies (1985-1990), UNESCO fellowship award (6 months) Delft University, The Netherlands, "Biotechnology Overseas Associate ship"  Germany & New Zealand (3 months each). He has 111 Journal papers, 165 International/National conference presentations & six patent to his credit. He has been the PI/Co-PI of 20 Sponsored research projects. He has also established “state of the art” Centre of Excellence for mass production of biopolymers from the generous support of DBT, New Delhi. He has supervised 21 Ph.Ds & 76 Master’s theses. His main interest is in bioprocess optimization & scale up for microbial, plant and animal cell cultures & development of novel bioreactors for mass scale cultivation.

Areas of Interest

Modelling Simulation & Optimization of bioprocesses, Scale-up, Production of therapeutic drugs by plant cell / hairy root cultivation, Development of novel reactor designs for enhanced production of bioactive compounds.

Publications (Click to expand)

1. N.G. Karanth and A.K. Srivastava, “Use of modified double reciprocal plot for enzyme kinetic parameters - A pitfall”, Biochemica-et-Biophysica Acta, 615, 279-282 (1980). 

2. A.K. Srivastava and B. Volesky, “Characterization of transient cultures of Clostridium acetobutylicum”, Biotechnology Progress, 6(6) 408-420 (1990).

3. A.K. Srivastava and B. Volesky, “Updated model of the batch acetone-butanol fermentation”, Biotechnology Letters, 12(9) 693-698 (1990). 

4. A.K. Srivastava and B. Volesky, “NADH fluorescence in a fed-batch fermentation by Clostridium acetobutylicum “, Canadian Journal of Chemical Engineering, 69(2) 520-526 (1991).

5. A.K. Srivastava and B. Volesky, “On-line fluorescence measurements in assessing culture metabolic activities”, Applied Microbiology and Biotechnology, 34(4) 450-457 (1991).

6. A.K. Srivastava and B. Volesky, “Measurement and regulation of the culture reduction state in Clostridium acetobutylicum”, Biotechnology and Bioengineering 38(2) 181-190 (1991).

7. A.K. Srivastava and B. Volesky, “NADH fluorescence in a carbon limited fermentation“, Biotechnology and Bioengineering 38(2) 191-195 (1991).

8. B. Volesky and A.K. Srivastava, “Culture fluorescence as a marker of Physiological state in Fermentation process optimizations”, Analytica Chimica Acta, 249(1) 279-290 (1991).

9. B. Romein, A.K. Srivastava, C. Hellinga, J.P. Van-Dijken,K.Ch.A.M. Luyben “Control of cell concentration in fed-batch hybridoma cultures”, Cytotechnology, 14,1 (1994).

10. Poonam Raje & A.K. Srivastava “Updated Mathematical model and Fed-batch Strategies for Poly-B-Hydroxy Butyrate (PHB) production by A. eutrophus.” Bioresource Technology, 64/3, 185-192 (1998).

11. A.K. Srivastava and P. Lasrado “Fed-batch Sorbitol to Sorbose fermentation by A. suboxydans” Bioprocess Engineering, 18, 6, 457-461 (1998).

12. A.K. Srivastava and R. Giridhar “Representation of culture transition states in A. suboxydans” J. Chemical Technology and Biotechnology, 73,1,23-30 (1998).

13. Vandana Goswami and A.K. Srivastava “Fed-batch propionic acid production by Propionibacterium acidipropionici” Biochemical Engineering Journal, 4,121-128 (2000).

14. R. Giridhar and A.K. Srivastava “Fed-batch cultivation of Acetobacter suboxydans for the microbial oxidation of  D-sorbitol to L-Sorbose” Bioprocess Engineering, 23/6, 575-577 (2000).

15. Vandana Goswami and A.K. Srivastava “Batch Kinetics and Modelling of propionic acid fermentation”, Canadian Journal of Chemical Engineering, 78(3), 522-528 (2000).

16. R. Giridhar and A.K. Srivastava “Productivity enhancement in l-sorbose fermentation using oxygen vector” Enzyme and Microbial Technology, 27, 537-541 (2000). 

17. R. Giridhar and A.K. Srivastava “Fed-batch Sorbose Fermentation Using Pulse and Multiple Feeding Strategies for Productivity Improvement” Biotechnol. Bioprocess Eng. 5, 5, 340-344 (2000).

18. R. Giridhar and A.K. Srivastava “Model based constant feed fed-batch L-sorbose production for improvement in L-sorbose productivity “Chemical and Biochemical Engineering Quarterly 14 (4), 133-140 (2000).

19. R. Giridhar and A.K. Srivastava “Computer coupled substrate feeding strategies for efficient conversion of D-Sorbitol to L-sorbose in Fed-batch culture”  Process Biochemistry  36/8-9,829-834 (2001).

20. Vandana Goswami and A.K. Srivastava “Propionic acid production in an in-situ cell retention bioreactor” Applied Microbiology and Biotechnology (2001)  56, 5(6), 676-680.

21. R. Giridhar  and A.K. Srivastava “L- Sorbose production in a continuous fermenter with and  with out cell recycle “World Journal of Microbiology and Biotechnology 17(2), 185-189 (2001).

22. Achin Gupta and A.K. Srivastava “Continuous propionic acid production from cheese whey using in-situ spin filter “Biotechnology and Bioprocess Engineering 6, 1-5 (2001).

23. R. Giridhar and A.K. Srivastava “Mathematical modeling and its use for design of feeding strategies for L-sorbose fermentation” Canadian Journal of Chemical Engineering 79 (3), 349-355 (2001).

24. R. Giridhar and  A.K Srivastava “Repeated fed-batch sorbose fermentation by Acetobacter suboxydans” Chemical and Biochemical Engineering Quarterly 15(3), 127-129 (2001).

25. S. Chattopadhyay, A.K. Srivastava, S.S. Bhojwani  & V.S. Bisaria, “Development of suspension culture of Podophyllum hexandrum for the production of podophyllotoxin” ,  Biotechnology Letters 23,  2063-2066 (2001).

26. S. Chattopadhyay, A.K. Srivastava, S.S. Bhojwani  & V.S. Bisaria, “Production of podophyllotoxin by large scale cultivation of Podophyllum hexandrum in bioreactor” J. Bioscience and Bioengineering 93(2), 215-220 (2002).

27. S. Chattopadhyay, S. Farkya, A.K. Srivastava  & V.S. Bisaria, “Bioprocess considerations for production of secondary metabolites by plant cell suspension cultures” Biotechnology and Bioprocess Engineering 7, 138-149 (2002).

28. S. Chattopadhyay, A.K. Srivastava & V.S. Bisaria “Optimization of culture parameters for production of podophyllotoxin in suspension culture of Podophyllum hexandrum” Applied Biochemistry and Biotechnology, vol. 102/103, 381-393 (2002).

29. R. Giridhar and A.K. Srivastava, “Productivity improvement in L-Sorbose biosynthesis by fed-batch cultivation of Gluconobacter oxydans” Journal of Bioscience and Bioengineering  94,1, 34-38 (2002).

30. Gunjan Prakash, S.S. Bhojwani and A.K. Srivastava, “Production of Azadirachtin from Plant Tissue Culture – State of the art and future prospects”, Biotechnology and Bioprocess Engineering  7,185-193 (2002).

31. S. Chattopadhyay, V.S. Bisaria, T. Scheper, A.K. Srivastava, “Non invasive methods for determination of cellular growth in plant cell suspension culture of Podophyllum hexandrum”Biotechnology and Bioprocess Engineering 7(6), 331-334 (2002)

32. S. Chattopadhyay, R.S. Mehra, A.K. Srivastava, S.S. Bhojwani and V.S. Bisaria , “ Effect of major nutrients on Podophyllotdxin production in Podophyllum hexandrum suspension cultures” Applied Microbiology and Biotechnology  60, 541-546 (2003)  .

33. S. Chattopadhyay,  S.S. Bhojwani,  V.S. Bisaria  & A.K. Srivastava, “Enhanced production of podophyllotoxin by fed-batch cultivation of Podophyllum hexandrum”, Canadian Journal of Chemical Engineering 81(5), 1011-1018 (2003).

34. S. Chattopadhyay, V.S. Bisaria and A.K. Srivastava “Enhanced production of podophyllotoxin using in-situ cell retention bioreactor “ Biotechnology Progress” (2003) 19, 1026-1028.

35. Keyur N. Raval, Stephan Hellwig, Gunjan Prakash, Alfredo Ramos-Plasencia, Ashok Srivastava and Jochen Buchs, “Necessity of a two stage process for the production of Azadirachtin related limonoids in suspension cultures of Azadirachta indica” Journal of Bioscience and Bioengineering 96(1), 16-22  (2003) 

36. Gunjan Prakash, Keyur Raval, Ashok Srivastava, “ Production of biopesticide azadirachtin from plant cell culture of A. indica” CSIR J., 11(1) 81-85, 2003.

37. S. Chattopadhyay,  V.S. Bisaria, A.K. Panda & A.K. Srivastava, “Cytotoxicity of in vitro produced podophyllotoxin from Podophyllum hexandrum on Human cancer cell line” , Journal of Natural Product Research (2003) 18(1), 51-57.

38. Gunjan Prakash,  R. Keyur & A.K. Srivastava “Neem Vraksh ( Azadirachta indica ) ke Padap Koshika samvardhan dwara Jaiv keetnashi Azadirachtin ka utpadan (In Hindi) “ Bhartiya vaigyanik avum audyogik anusandhan Patrika”  (2003) 11,1, 81-85.

39. Shukla R, A.K. Srivastava and Chand S. “Bioprocess Strategies and recovery processes in gibberellic acid fermentation”, Biotechnology and Bioprocess Engineering  (2003) 8(5) 269-278.

40. Gunjan Prakash & A.K. Srivastava “Jaive Prodyogiki dwara jaiva keetnashi Azadirachtin ki uplabdhta: Sambhavanayen avum chunautiyan” Vigyan Garima Sindhu 2003, 45, 69-74

41. Patwardhan P.R. and A.K. Srivastava “Model based fed-batch cultivation of R. eutropha for enhanced biopolymer production” Biochemical Engineering Journal (2004) 20/1, 21-28.

42. Farkya, Sunita, Bisaria, V.S. and Srivastava, A.K., “Biotechnological Aspects of Production of Anticancer Drug Podophyllotoxin, ” Applied Microbiology and Biotechnology (2004) 65, 504-519.

43. Khanna, Shilpi and A.K Srivastava, “Recent Advances in microbial polyhydroxyalkanoates”       Process Biochemistry (2005) 40, 607-619.

44. Smita Srivastava and A.K. Srivastava, “Studies on phosphate uptake by Acinetobacter          calcoaceticus under aerobic conditions” Enzyme and Microbial Technology (2005) 36/2-3,        362-368.

45. Shukla R, Chand S. and A.K. Srivastava “Batch kinetics and modeling of gibberellic acid          production by Gibberella fujikuroi  ” Enzyme and Microbial Technology (2005) 36/4, 492-497.

46. Shukla R, Chand S. and A.K. Srivastava “Improvement of gibberellic acid production by           model based fed-batch cultivation of Gibberella fujikuroi”, Process Biochemistry (2005) 40(6), 2045-2050.

47. Khanna, Shilpi, and A.K Srivastava,  “Statistical media optimization studies for growth and PHB production by Ralstonia eutropha ” Process Biochemistry (2005) 40(6), 2173-2182.

48. Khanna Shilpi and A.K. Srivastava “A simple structured mathematical model for Biopolymer (PHB) production” Biotechnology Progress (2005) 21(3) 830 – 838.

49. Khanna Shilpi and A.K. Srivastava “Repeated batch cultivation of Ralstonia eutropha  for PHB production” Biotechnology Letters (2005) 27(18) 1401-1403.

50. Gunjan Prakash C.J.S.K. Emmannuel and A.K. Srivastava “Variability of azadirachtin in  Azadirachta indica (neem) and batch kinetic studies of cell suspension culture”, Biotechnology and Bioprocess Engineering (2005) 10(3) 198-204. 

51. Gunjan Prakash and A.K. Srivastava “Statistical media optimization for cell growth and azadirachtin production in Azadirachta Indica (A.Juss) suspension cultures” Process Biochemistry (2005) 3795-3800.

52. Sofia P.K, Rajendra Prasad, V.K.Vijay and A.K.Srivastava, “Antimicrobial Properties of Spices”,  Spice India.18 (11)(2005) 20-28.

53. Gunjan Prakash and A.K. Srivastava “Modelling of Azadirachtin production by Azadirachta indica and its use for feed forward optimization studies”  Biochemical Engineering Journal (2006) 29, 1/2, 62-68.

54. Khanna Shilpi and A.K. Srivastava “Computer simulated fed-batch cultivation for overproduction of PHB: A comparison of simultaneous and alternate feeding of nutrients (carbon and nitrogen)” Biochemical Engineering Journal (2006) 27(3), 197-203.

55. Smita Srivastava and A.K. Srivastava “Biological phosphate removal by model based continuous cultivation of Acinetobacter calcoaceticus ”,Process Biochemistry (2006) 41, 624-630. 

56. Shilpi Khanna and A.K. Srivastava “ Optimization of nutrient feed concentration and addition time for production of Poly-β-hydroxybutyrate”, Enzyme and Microbial Technology (2006) 39, 1145-1151.

57. P.K. Sofia, Prasad  Rajendra, Vijai V.K. Srivastava  A.K, “Evaluation of antibacterial activity of Indian spices against common food borne pathogens” (2007) International Journal of Food 

Science and Technology 42 (8): 910-915.

58. Gunjan Prakash and A.K. Srivastava, “Azadirachtin production in stirred tank reactors by  Azadirachta indica suspension culture”,  Process Biochemistry (2007) 42,1,93-97.

59. Smita Srivastava and A.K. Srivastava “Hairy root culture for mass production of high value secondary metabolites” CRC reviews in Biotechnology (2007) 27, 29-43.

60. Shukla R, Chand S. and A.K. Srivastava “Production of gibberellic acid by multiple fed-batch cultivation of Gibberella fujikuroi”,  Chemical and Biochemical Engineering Quarterly 21(2) (2007) 159-162.

61. Shilpi Khanna and A.K. Srivastava, “Production of poly (3 hydroxybutyric-co-3-hydroxyvaleric acid) having a high hydroxyl valerate content with valeric acid feeding” Journal of Industrial Microbiology and Biotechnology (2007) 34:457-461.

62. Patwardhan Pallavi and A.K. Srivastava “Fed-batch cultivation of R. eutropha “ Bioresource Technology”  (2008) 99, 1787-1792.

63. Shilpi Khanna & A.K. Srivastava “Continuous production of Poly-?- Hydroxy butyrate by high cell density cultivation of Wautersia eutropha”, Journal of Chemical Technology and Biotechnology  83(6)(2008) 799-805.

 

64. Smita Srivastava and A.K. Srivastava “Biological phosphate removal by model based fed-batch cultivation of Acinetobacter calcoaceticus” Biochemical Engineering Journal 40(2)(2008) 227-232.

65. Gunjan Prakash and A.K. Srivastava , “Statistical elicitor optimization for the enhancement of azadirachtin production in bioreactor Azadirachta indica cell cultivation”, Biochemical Engineering Journal 40 (2) (2008)218-226.

66. Shilpi Khanna and A.K. Srivastava “Productivity enhancement of Poly-β-hydroxybutyrate by fed-batch cultivation of nutrients using variable (decreasing) nutrient rate by Ralstonia eutropha” Chemical Engineering Communications, 195 (2008) 1424-1436.

67. Gunjan Prakash and A.K. Srivastava, “Production of Azadirachtin (bio-pesticide) in an in-situ cell retention bioreactor”, Applied Biochemistry and Biotechnology 151 (2008) 307-318.

68. Ashish Baldi, Ashok K Srivastava & V.S. Bisaria “Effect of aeration on production of anticancer lignans by cell suspension cultures of Linum album”, Journal of Applied Biochemistry and Biotechnology 151(2008) 547-555. 

69. Smita Srivastava, Sneh Harsh & A.K. Srivastava, “Use of NADH fluorescence measurement for on-line biomass estimation and characterization of metabolic status in bioreactor cultivation of plant cells for azadirachtin (a bio-pesticide) production”, Process Biochemistry, 43 (2008) 1121-1123.

70. Baldi, A., Jain, A., Gupta. N., Srivastava, A.K., Bisaria, V.S., Co-culture of arbuscular mycorrhiza-like fungi (Piriformospora indica and Sebacina vermifera) with plant cells of Linum album for enhanced production of podophyllotoxins: a first report”, Biotechnol. Lett, 2008, 30:1671-1677.

71. Baldi A., Srivastava A.K. & Bisaria V.S. “Improved Podophyllotoxin production by transformed 

cultures of Linum album. Biotechnology Journal (2008) Oct 3 (9-10):1256-63

72. Shilpi Khanna and A.K. Srivastava “ On-line characterization of Physiological state in Poly –β-hydroxybutyrate production by Wautersia eutropha” Journal of Applied Biochemistry & Biotechnology (2009) 157,2, 237-243.

73. V.S. Bisaria, A. Baldi, V. Kumar, N. Gupta, A. Jain, S. Farkya, A.K. Srivastava Interaction of phytopromotional fungi and plant cells on synthesis of plant-derived metabolites, Journal of Biotechnology (2008)  136S, S11.

74. Baldi, A., Farakya, S., Jain, A., Gupta, N., Mehra, R., Datta, V., Srivastava, A.K., Bisaria, V.S. Enhanced production of podophyllotoxins by co-culture of transformed L. album cells with plant growth promoting fungi, Pure and Applied Chemistry (2010)  82(1),227-241 .

75. Smita Srivastava & A.K. Srivastava, “Application of NADH fluorescence sensing in plant cell bioreactor for Azadirachtin (a bio-pesticide) production” Asia Pacific Journal of Molecular Biology and Biotechnology (2010) Vol 18(1) 23-25.

76. Shilpi Khanna & A.K. Srivastava, “ Continuous cultivation of Wautersia eutropha for the production of a biodegradable polymer (Poly-B-Hydroxybutyrate)”  Asia Pacific Journal of Molecular Biology and Biotechnology (2010) Vol 18(1) 31-33.

77. S. Farkya, A. Baldi, V. Kumar, V. Datta, R. Mehra, N. Gupta, A. Jain, A.K. Srivastava and V.S. Bisaria, “ Impact of symbiotic fungi on production of secondary metabolites by plant cell culture” Asia Pacific Journal of Molecular Biology and Biotechnology (2010) Vol 18(1) 51-53

78. A.K. Srivastava & Gunjan Prakash, “Use of bioreactor plant cell cultivation as a novel technique for mass production of bio-pesticide” Asia Pacific Journal of Molecular Biology and Biotechnology (2010) Vol 18(1) 131-133.

79. Gunjan Prakash & A.K. Srivastava “Integrated yield and productivity enhancement strategy for biotechnological production of Azadirachtin by suspension culture of Azadirachta indica” Asia Pacific Journal of Chemical Engineering (2011) 6, 129-137.

80. Smita Srivastava & A.K. Srivastava, “Statistical medium optimization for enhanced azadirachtin production in hairy root culture of Azadirachta indica” In vitro Cellular and Developmental Biology – Plant (2012) 48,73-84.

81. Guneet Kaur, Ruchira Sharma, A.K. Srivastava & Subhash Chand, “On-line  characterization of metabolic state in batch cultivation of Clostridium diolis for 1,3 Propanediol production using NADH  + H+ fluorescence” Journal of Applied Biochemistry and Biotechnology” (2012) 166, 138-145.

 

82. Smita Srivastava, A.K. Srivastava, “ In vitro azadirachtin production by hairy root cultivation of Azadirachta indica in Nutrient Mist bioreactor” Applied Biochemistry and Biotechnology”  (2012) 166, 365-378.

83. Rajashekar Reddy, Smita Srivastava, A.K. Srivastava “Development of a mathematical model for growth and oxygen transfer in in vitro plant hairy root cultivations” Applied Biochemistry and Biotechnology (2012) 167(6), 1831-1844.

84. Smita Srivastava, A.K. Srivastava, “Strategies to overcome oxygen transfer limitations during hairy root cultivation of Azadirachta indica for enhanced azadirachtin production” Applied Biochemistry and Biotechnology (2012) 167(6) 1818-1830.

85. Guneet Kaur, A.K. Srivastava & Subhash Chand, “Determination of kinetic parameters of 1,3-propanediol fermentation by Clostridium diolis using statistically optimized medium”. Bioprocess and Bio-systems Engineering (2012) 35:1147-1156. 

86. Guneet Kaur, A.K. Srivastava & Subhash Chand, “Advances in Biotechnological Production of 1,3-propanediol” Biochemical Engineering Journal (2012) 64: 106–118 

87. Geeta Gahlawat, Bedoshree Sengupta, Ashok K. Srivastava ”Enhanced production of poly (3-hydroxybutyrate) in a novel airlift reactor with in-situ cell retention using Azohydromonas australica. Journal of Industrial Microbiology and Biotechnology (2012) 39 (9) 1377-1384.

88. Guneet Kaur, A.K. Srivastava & Subhash Chand, “Simple strategy of repeated batch cultivation for enhanced production of 1,3 – propanediol using Clostridium diolis”. Journal of Applied Biochemistry and Biotechnology (2012) 167:1061-68. 

89. Smita Srivastava, A.K. Srivastava, “Azadirachtin Production by hairy root cultivation of Azadirachta indica in modified stirred tank reactor”. Bioprocess and Bio-systems Engineering (2012) 35(9) 1549-53

90. Guneet Kaur, A.K. Srivastava & Subhash Chand, “Mathematical modeling approach for concentration and productivity enhancement of 1,3 – propanediol using Clostridium diolis” Biochemical Engineering Journal, (2012), 68,34-41.

91. Geeta Gahlawat and Ashok K. Srivastava “Estimation of fundamental kinetic parameters of Polyhydroxybutyrate fermentation process of Azohydromonas australica using statistical approach of media optimization” Applied Biochemistry and Biotechnology (2012)168,1051-1064.

92. Geeta Gahlawat and Ashok K. Srivastava “Use of NAD(P)H Fluorescence Measurement for On-Line Monitoring of Metabolic State of Azohydromonas australica in Poly(3 hydroxy butyrate) Production. Applied Biochemistry and Biotechnology (2013) 169, 821-831.

93. Geeta Gahlawat and Ashok K. Srivastava “Development of a mathematical model for the growth associated Polyhydroxybutyrate fermentation by Azohydromonas australica and its use for the design of fed-batch cultivation strategies" (2013) Bioresource Technology 137, 98-105.

94. Guneet Kaur, A.K. Srivastava & Subhash Chand, “Bioconversion of glycerol to 1,3 Propanediol : A mathematical model-based nutrient feeding approach for high production using Clostridium diolis” Bioresource Technology (2013) 142, 82-87. 

95. D. Thakore, A. K. Srivastava, and A. K. Sinha, “Yield Enhancement Strategies for Enhancement of Indole Alkaloids in Hairy Root Cultures of Catharanthus roseus” International Journal of Chemical Engineering and Applications (2013) 4(3), 153-156.

96. Nivedita Patra, A. K. Srivastava, and Shilpi Sharma, "Study of Various Factors for Enhancement of Artemisinin inArtemisia Annua Hairy Roots," International Journal of Chemical Engineering and Applications (2013) 4(3), (157-160).

97. Smita Srivastava & A.K. Srivastava, “Production of the biopesticide azadirachtin by hairy root cultivation of Azadirachta indica in liquid phase bioreactors” Applied Biochemistry and Biotechnology, (2013), 171,1351-61.

98. Rajeshwari Sinha, AK Srivastava & SK Khare, "Efficient proteolysis and application of an alkaline protease from halophilic Bacillus sp. EMB9", Preparative Biochemistry and Biotechnology, (2014), 44(7), 680-696.

99. Smita Srivastava & AK Srivastava, "Effect of elicitors and precursors on Azadirachtin production in hairy root culture ofAzadirachta indica", Applied Biochemistry and Biotechnology, (2014), 172(4), 2286-2297.

100. Nivedita Patra, Ashok K. Srivastava, "Enhanced Production of Artemisinin by Hairy Root Cultivation of Artemisia annuain a Modified Stirred Tank Reactor", Appl Biochem Biotechnol (2014) 174, 2209–2222.

101. Patra, N. & Srivastava, A.K., "Mass scale artemisinin production in a stirred tank bioreactor using hairy roots ofArtemisia annua", International Journal of Bioscience, Biochemistry and Bioinformatics (2014), 4(6), 467-474.

102. Dhara Thakore, Ashok K. Srivastava & Alok Krishna Sinha, "Model based fed batch cultivation and elicitation for the overproduction of ajmalicine from hairy roots of Catharanthus roseus", Biochemical Engineering Journal (2015), 97, 73–80.

103. Patra, N. & Srivastava, A.K.,"Use of model based nutrient feeding for improved production of artemisinin by hairy roots of Artemisia annua in a modified stirred tank bioreactor" Appl Biochem Biotechnol (2015) 177(2), 373-88.

104. Guneet Kaur, A.K. Srivastava & Subhash Chand, “Debottlenecking product inhibition in 1,3-propanediol fermentation by In-Situ Product Recovery” Bioresource Technology,(2015) 197, 451-457.

105. Nivedita Patra and Ashok K. Srivastava, “Artemisinin production using plant hairy root cultures in gas and liquid phase bioreactors" Plant Cell Reports, (2016),35(1), 143-153.

106. Dhara Thakore, Ashok K. Srivastava & Alok Krishna Sinha, "Mass production of Ajmalicine by bioreactor cultivation of hairy roots of Catharanthus roseus.",Biochemical Engineering Journal (2017),119, 84-91.

107. Varsha Sharma, Swati Misra & Ashok Kumar Srivastava, “Developing a green and sustainable process for enhanced PHB production by Azohydromonas australica” Biocatalysis and Agricultural Biotechnology (2017) 10,122-129.

108. Dhara Thakore, Ashok K. Srivastava, “Production of Biopesticide Azadirachtin using Plant cell and Hairy root cultures” Engineering in life Sciences, (2017)17,997-1005.

109. Geeta Gahlawat & Ashok K. Srivastava, "Model-based nutrient feeding strategies for the increased production of polyhydroxybutyrate (PHB) by Alcaligenes latus” Applied Biochemistry and Biotechnology, (2017) 183:530–542

110. Geeta Gahlawat & Ashok Kumar Srivastava,“Enhancing the production of poly hydroxy alkanoate biopolymer by Alcaligenes latus using a simple empty and fill bioreactor cultivation strategy” Chemical and Biochemical Engineering Quarterly, (2017) 31(4)479-485.

111. K. Sharma, A. K. Srivastava,* and T. R. Sreekrishnan (2021) Model-based Optimization of Biopolymer Production from Glycerol (2021) Chem. Biochem. Eng. Q., 35 (1) 65–80 (2021)

 

Publications in Books

112. B. Romein, A. K. Srivastava, C. Hellinga, J. P. Vandijken, K.Ch.A.M. Luyben, (1995) "Control of Cell concentration in Fed-batch Hybridoma cultures". In Animal Cell Technology: Developments towards the 21st Century (Eds.) E.C. Beuvery et. al., 851-854, Kluwer Academic Publishers, The Netherlands.

113. Vandana Goswami & A. K. Srivastava, (1998) "Batch Kinetics of Propionic acid Fermentation". In Advances in Biotechnology 75-84, Educational Publishers and Distributors, New Delhi.

114. Vandana Goswami & A. K. Srivastava, (1998) "Fed-batch Propionic acid fermentation by Propionibacterium acidipropionici", Advances in Chemical Engineering Volume 97, 397-403, Bhaba Atomic Research Centre, Mumbai (India).

115. A. K. Srivastava, (2003) "Bioprocess engineering considerations in the production of secondary metabolites by plant cell suspension cultures", New Horizons in Biotechnology 173-191, Editors S. Roussos, C.R. Soccol, A. Pandey and C. Augur, Kluwer Academic Publishers Dordrecht, The Netherlands.

116. S. Chattopadhyay, A. K. Srivastava & V. S. Bisaria, (2004) "Production of Phytochemicals in Plant Cell Bioreactors". InPlant Biotechnology and Molecular Markers Editors : P.S. Srivastava, A. Narula and S. Srivastava, Kluwer Academic Publishers, The Netherland, (Anamaya Publishers, New Delhi), 117-128.

117. Gunjan Prakash & Ashok K. Srivastava, (2005) "Bio-pesticides by Plant Cell Cultivation". In "Chemistry for Green Environment" Editors Prof. M.M. Srivastava and Rashmi Sanghi, Publishers Narosa Publishing House, New Delhi, 232-243.

118. Ruchi Shukla & Ashok Kumar Srivastava, (2006) "Enhanced production of Gibberrellic acid by Gibberella fujikuroi using fed-batch cultivation". In Current topics on Bioprocesses in Food Industries Editors Prof. C. Larroche, A. Pandey and Claude-Gilles Dussap, Publishers:- Asia Tech Publishers Inc. New Delhi 456-467.

119. Ashish Baldi, V. S. Bisaria & A. K. Srivastava, (2006) "Biotechnological approaches for production of some promising plant based Chemotherapeutics" Medicinal Plant Biotechnology; From basic research to Industrial applications, Chapter 7, Page 117-156, Editors O. Kayser & W. Quax, Wiley – VCH, Boschstrasse 12, D-69469 Weinhein, Germany.

120. Smita Srivastava & A. K. Srivastava, (2007) "In-vitro azadirachtin production". In Biotechnology: "Bioactive Molecules and Medicinal Plants" K.G. Ramawat, J.M. Merillon (Eds.): 233-254.

121. Baldi A., Jain A., Gupta N., Srivastava A. K. & Bisaria V. S., (2009) "Cocultivation of Linum album cells and Piriformospora indica for improved production of phytopharmaceuticals". In: Soil Biology: Symbiotic Fungi Principles and Practice; Vol 18 Edited by A. K. Varma & Amit C Kharkwal 361-372 Springer-Berlin Heidelburg.

122. Baldi A., Srivastava A. K. & Bisaria V. S., (2009) "Fungal elicitors for enhanced production of secondary metabolites in plant cell suspension cultures". In: Soil Biology: Symbiotic Fungi Principles and Practice; Vol 18 Edited by A. K. Varma & Amit C Kharkwal 373-380 Springer-Berlin Heidelburg.

123. A. K. Srivastava & Gupta Shilpi, (2011) "Bioreactions and Bioreactor Operations, Fed-Batch fermentation – Design Strategies". In: Murray Moo-Young (Ed.), Comprehensive Biotechnology, Second Edition, Volume 2, pp 515-526. Elsevier Publications Amsterdam.

124. Dhara Thakore, Ashok Kumar Srivastava & Alok Sinha, (2011) "Enhanced production of Antihypertensive drug Ajmalicine in transformed Hairy root culture of Catharanthus roseus by application of stress factors in statistically optimized medium". In Chemistry of Phytopotentials: Health Energy and Environment Perspectives. (Eds. MM Srivastava, L.D. Khemani, S Srivastava) Springer-Verlag Berlin Heidelberg Page 39-42.

125. Nivedita Patra,Shilpi Sharma & Ashok K Srivastava, (2011) "Statistical media optimization for enhanced biomass and Artemisinin production in Artemisia annua hairy roots". In Chemistry of Phytopotentials: Health Energy and Environment Perspectives. (Eds. MM Srivastava, L.D. Khemani, S. Srivastava) Springer-Verlag Berlin Heidelberg Page 173-176.

126. S. Sharma, R. Gupta, G. Dugar, A. K. Srivastava, (2012) "Impact of application of biofertilizers on soil structure and resident microbial community structure and function". In: Bacteria in Agrobiology: Plant Probiotics (D. K. Maheshwari Ed.) 65-77 Springer, Heidelberg, Germany.

127. Smita Srivastava and A K Srivastava, (2013) Biotechnology and genetic eingineering for alkaloid production, In: K.G. Ramawat, J.M. Merillon and M. Henry (Eds.) Natural Products- Phytochemistry Botany & Metabolism of Alkaloids, Phenolics & Terpenes. Vol I, 213-250. Springer – Verlag Berlin Heiderberg, Germany 

128. Misra, S., Sharma, V., Srivastava, A.K., (2015). "Bacterial polysaccharides: an overview. In  Jean-Michel Merillon and Kishan G. Ramawat (Eds.), Polysaccharides: Bioactivity and  Biotechnology 81-108, Springer, Heidelberg, Germany.

129. Nivedita Patra & Ashok K Srivastava (2018) “Mass production of Artemisinin using Hairy Root Cultivation of Artemisia annua in Bioreactor ” In Bioprocessing of Plant In Vitro Systems, Editors A. Pavlov, T, Bley, Reference Series in Phytochemistry, Springer International Publishing AG 2017,  pp 3443-359, DOI 10.1007/978-3-319-32004-5_20-1

130. Swati Misra, A.K. Srivastava, Shailendra Raghuwanshi, Varsha Sharma, P.S. Bisen (2018) “Medical grade biodegradable polymers: A perspective from gram-positive bacteria” In Fundamental Biomaterials: Polymers, Elsevier, Pages 267-286. 

131. Thakore D., Srivastava A.K. (2020) Mass Scale Hairy Root Cultivation of Catharanthus roseus in Bioreactor for Indole Alkaloid Production. In: Ramawat K., Ekiert H., Goyal S. (eds) Plant Cell and Tissue Differentiation and Secondary Metabolites. Reference Series in Phytochemistry. Springer, Cham.Pages 487 - 502

Publications in International/National Conference Proceedings

132. A. K. Srivastava & B. Volesky, "On-line measurement of culture fluorescence in fermentation", 37th Canadian Chemical Engineering Conference Proceedings, Montreal 302-304 (1987).

133. A. K. Srivastava "Mathematical modeling of animal cell cultivation", Proceedings of National Seminar on "Bioprocessing and r-DNA Technology" pp.49 – 59. Editors Vinod Bihari and S.C. Agarwal, Central Drug Research Institute, Lucknow, (1998).

134. Gunjan Prakash & A. K. Srivastava, "Optimization of culture parameters for production of azadirachtin in Azadirachta indica suspension culture", National symposium on Biochemical Sciences: Health and Environmental aspects (BHEA – 2003), Dayalbagh Educational Institute Dayalbagh Agra, October 2-4, 2003, Proceedings Page 510-513. Allied Publishers, New Delhi.

135. Gunjan Prakash & A. K. Srivastava, "Plant Cell Culture : Recent Advances and its relevance to Food Industry" Proceeding National seminar on "Global perspectives for the Indian Food Industry by 2020: Food Vision 2020" on 5 – 6 February 2005 at Laxminarayan Institute of Technology, Nagpur (Maharashtra), Page 35 – 41.

136. A. K. Srivastava & Smita Srivastava, "Production of bio-pesticides (Azadirachtin) by cell / hairy root cultivation in bioreactor" Proceedings 5th International conference on Bio pesticides: Stakeholder’s Perspectives, India Habitat Centre, Lodhi Road, New Delhi during 26-30 April 2009.

 

PAPERS PRESENTED IN NATIONAL/ INTERNATIONAL CONFERENCES

 

1. A.K. Srivastava & B. Volesky, "Culture metabolism assessment by fluorescence", 8th IBS (International Biotechnlogy Symposium) Paris (France), July 17-22, (1988) Abstracts p-302.

2. A. K. Srivastava & B. Volesky, "Interpretation of culture fluorescence signal", International Conference on Biosensors (Canbiocon’88) Montreal, April 12-14 (1988).

3. A. Groboillot, A. K. Srivastava, M.N. Pons, B. Volesky, J.M. Engasser, "Use of gas membrane probe coupled to a QMS or to a GC-FID for the monitoring of volatile components during fermentation", Poster presented in the 5th European Congress on Biotechnology, Copenhagen, July 1990.

4. B. Volesky & A. K. Srivastava, "Culture fluorescence as a marker of Physiological State in Fermentation process optimizations", ANABIOTECH’90 San Francisco (U.S.A.), October 22-25, 1990.

5. R. Giridhar & A. K. Srivastava, "Sorbose production in a continuous fermenter", National Conference on "Recent Advances in Biochemical Engg. & Process Biotechnology", Jadavpur University, Calcutta Jan 15-16, 1993.

6. A. K. Srivastava & Giridhar R., "Structured Mathematical model for Sorbitol to Sorbose bioconversion", Ninth National convention of Chemical Engineers and International Symposium on Importance of Biotechnology in Coming Decades, June 5-7, 1993.

7. A. K. Srivastava, B. Romein, C. Hellinga & K.Ch.A.M. Luyben, "Redox Potential and Cell Viability in Hybridoma Cultures", Presented in CHEMCON’94 (Indian Chemical Engineering Congress 1994) December 14 - 17, 1994 at IIT, Kharagpur.

8. A. K. Srivastava, B. Romein, C. Hellinga & K.Ch.A.M. Luyben, "Kinetic Studies and Unstructured model of Hybridoma Growth in Batch and Fed-batch Cultures", Presented in CHEMCON’94 (Indian Chemical Engineering Congress 1994) December 14 - 17, 1994 at IIT, Kharagpur.

9. P. Raje & A. K. Srivastava, "Modelling and Optimization of PHB synthesis by A. eutrophus", Presented in CHEMCON’95 (Indian Chemical Engineering Congress 1995) December 27 - 30, 1995 at Indira Gandhi Center for Atomic Research, Kalpakkam (T.N.) Page 35.

10. R. Pradeep Sekar & A. K. Srivastava, "Development of the computer interface for programmed feeding in a fermenter", Presented in CHEMCON’95 (Indian Chemical Engineering Congress 1995) December 27 - 30, 1995 at Indira Gandhi Center for Atomic Research, Kalpakkam (T.N.) Page 73.

11. R. Pradeep Sekar & A. K. Srivastava, "Software package for data acquisition in a fermenter", Presented as Poster in CHEMCON’95 (Indian Chemical Engineering Congress 1995) Dec. 27 - 30, 1995 at Indira Gandhi Center for Atomic Research, Kalpakkam (T.N.) Page 91.

12. A. K. Srivastava & P. Lasrado, "Fed-batch Sorbitol to Sorbose fermentation by A. suboxydans", Presented in CHEMCON’ 96 (Indian Chemical Engineering Congress 1996) Dec 18 - 21, 1996 at Ankaleshwar (Gujrat).

13. Vandana Goswami & A. K. Srivastava, "Modelling of Propionic acid fermentation", Presented in CHEMCON’ 96 (Indian Chemical Engineering Congress 1996) Dec 18 - 21, 1996 at Ankaleshwar (Gujrat).

14. Vandana Goswami & A. K. Srivastava, Poster on "Batch kinetics of propionic acid fermentation", presented in International conference on Frontiers in Biotechnology, Nov. 26-29, 1997 at Trivandrum, Abstract book page 74.

15. Vandana Goswami & A. K. Srivastava, "Fed batch propionic acid fermentation", presented in Advances in Chemical Engineering - 97, Oct. 22-24, 1997 at Bhaba Atomic Research Centre, Mumbai.

16. A. K. Srivastava, "Mathematical modelling of animal cell culture", Invited Oral presentation in National conference on Bioprocessing and r-DNA technology March 27-28, 1998 at CDRI Lucknow. Abstract book pp. 25.

17. Achin Gupta & A. K. Srivastava, "Propionic acid production from Cheese Whey", Presented in CHEMCON 98 (Indian Chemical Engineering Congress 1998) Dec 16 - 19, 1998 at Visakhapatnam (Andhra Pradesh).

18. Amandeep Singh Kalsi & A. K. Srivastava, "Biological Phosphorous removal by Acinetobacter bacteria", Presented in CHEMCON 98 (Indian Chemical Engineering Congress 1998) Dec 16 – 19, 1998 at Visakhapatnam (Andhra Pradesh).

19. R. Giridhar & A. K. Srivastava, "Improved fermentative production of L-Sorbose by Acetobatcter suboxydans", Presented in CHEMCON 99 (Indian Chemical Engineering Congress 1999) Dec 20 – 23, 1999 at Chandigarh.

20. R. Giridhar & A. K. Srivastava, "Enhancing L-Sorbose fermentation by increasing oxygen solubility through the addition of oxygen vector", Presented in National conference on Recent Trends in Biotechnology at Department of Biotechnology, Amravati University, Amravati (Maharashtra) from February 3-5, 2000.

21. S. Chattopadhyay, A. K. Srivastava & V.S. Bisaria, "Optimization of culture parameters for production of podophyllotoxin in suspension culture of Podophyllum hexandrum", Poster presented in "International conference on New horizons in Biotechnology", Regional Research Laboratory, Trivandrum, April 18 –21, 2001.

22. A. K. Srivastava, "Bioprocess engineering considerations in the production of secondary metabolites by plant cell suspension cultures", Invited Lecture presented in "International conference on New horizons in Biotechnology", Regional Research Laboratory, Trivandrum, April 18 –21, 2001.

23. S. Chattopadhyay, S. S. Bhojwani, V. S. Bisaria & A. K. Srivastava, "Production of podophyllotoxin using batch and fed-batch cultivation of Podophyllum hexandrum in bioreactor", Presented (oral) at 7th YABEC symposium at State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, China from 28 – 30 October 2001.

24. S. Chattiopadhyay, A. K. Srivastava, S. S. Bhojwani & V. S. Bisaria, "Cultivation of Podophyllum hexandrum in stirred tank bioreactor for production of anticancer drug podophyllotoxin", Poster presented in All India Biotechnology Association – 2001 Annual meeting held at IIT Delhi, 28 – 30 September 2001.

25. Gunjan Prakash, Raval Keyur, S. S. Bhojwani & A. K. Srivastava, "Production of Biopesticide (Azadirachtin) by plant cell cultivation (In Hindi) Invited speaker for National conference on bioactive molecules", Regional Research Laboratory, Trivandrum during October 24-25, 2002.

26. S. Chattopadhyay, A. K. Srivastava & V.S. Bisaria, "Production of Podophyllotoxin by fed-batch cultivation of Podophyllum hexandrum", Paper presentation at Society for Bioscience and Bioengineering meeting held at Osaka University, Osaka, Japan during October 27-30, 2002.

27. Gunjan Prakash, S. S. Bhojwani & A. K. Srivastava, "Variation in azadirachtin contents in callus culture of Azadirachta indica (A. Juss.)", Poster presentation in the fourth World Neem Conference, 27-30 November 2002 held at Mumbai (India).

28. Raval K., Hellwig S., Srivastava A. K. & Buchs J., "Azadirachtin-related Limonoids (AZRL) production in suspension cultures of Azadirachta indica (poster)", 11th European Congress of Biotechnology, Basel, Switzerland August 24-29, 2003.

29. Gunjan Prakash & A. K. Srivastava, "Optimization of culture parameters for production of azadirachtin in Azadirachta indica suspension culture", National symposium on Biochemical Sciences: Health and Environmental aspects (BHEA – 2003) Dayalbagh Educational Institute Dayalbagh Agra, October 2-4, 2003.

30. Gunjan Prakash & A. K. Srivastava, "Statistical media optimization for the production of biopesticide azadirachtin in Azadirachta indica suspension culture", Oral presentation CHEMCON 03 (Indian Chemical Engineering Congress 2003) Dec 19 – 22, 2003 at Regional Research Laboratory, Bhubaneshwar (Orissa).

31. Shilpi Khanna & A. K. Srivastava, "Studies on media optimization for growth and PHB production by Ralstonia eutropha", Oral presentation CHEMCON 03 (Indian Chemical Engineering Congress 2003) Dec 19 – 22, 2003 at Regional Research Laboratory, Bhubaneshwar (Orissa).

32. Ruchi Shukla & A. K. Srivastava, "Kinetic study of Gibberellic acid fermentation", Poster presentation CHEMCON 03 (Indian Chemical Engineering Congress 2003) Dec 19 – 22, 2003 at Regional Research Laboratory, Bhubaneshwar (Orissa).

33. Smita Srivastava & A. K. Srivastava, "Studies on aerobic phosphate removal by Acinetobacter calcoaceticus", Poster presentation CHEMCON 03 (Indian Chemical Engineering Congress 2003) Dec 19 – 22, 2003 at Regional Research Laboratory, Bhubaneshwar (Orissa). Got Best Poster Ist Prize (Rs. 1000=00).

34. Shukla R, Chand S. & A. K. Srivastava, "Improvement of Gibberellic Acid production by model based fed-batch cultivation of Gibberella fujikuroi", Invited oral presentation in "International Congress on Bioprocesses in Food Industries" July 11-13, 2004 at Laboratoire de Genie Chimique et Biochimique, CUST – Universite Blaise Pascal, Clermont Ferrand, France.

35. Gunjan Prakash & A. K. Srivastava, "Modelling of bio-pesticide cultivation of Azadirachta Indica and its use for feed forward optimization studies", Oral Presentation at 10th YABEC Symposium, Cosmosquare International Education and Training Center, Osaka, Japan from 23 – 25 September 2004.

36. Gunjan Prakash, Aditya Julka, Sunita Farkya, A. K. Srivastava & V. S. Bisaria, "Enhanced Azadirachtin production by Statistical media optimization and abiotic and biotic (Mycorrhiza-like Fungi) Elicitors in Azadirachta indica suspension cultures", Poster presentation at 10th YABEC Symposium, Cosmosquare International Education and Training Center, Osaka, Japan from 23 – 25 September 2004.

37. Gunjan Prakash & A. K. Srivastava, "Model based fed-batch cultivation of Azadirachta indica cells for Biopesticides (Azadirachtin) production", Oral presentation CHEMCON 04 (Indian Chemical Engineering Congress 2004) Dec 27 – 30, 2004 at Grand Hyatt Hotel, Mumbai.

38. Shukla R, Chand S. & A. K. Srivastava, "Production of Gibberellic acid by Model based fed-batch cultivation of Gibberrella fujikuroi", Oral presentation CHEMCON 04 (Indian ChemicalEngineering Congress 2004) Dec 27 – 30, 2004 at Grand Hyatt Hotel, Mumbai.

39. Farkya Sunita, Bisaria V. S. & Srivastava A. K., "Cultivation of Podophyllum hexandrum cells in airlift bioreactor for production of Anticancer Drug Podophyllotoxin", Oral presentation CHEMCON 04 (Indian Chemical Engineering Congress 2004) Dec 27 – 30, 2004 at Grand Hyatt Hotel, Mumbai.

40. Shilpi Khanna, Smita Srivastava & A. K. Srivastava, "Development of a new mathematical model and its use for overproduction of PHB", Oral presentation CHEMCON 04 (Indian Chemical Engineering Congress 2004) Dec 27 – 30, 2004 at Grand Hyatt Hotel, Mumbai.

41. Smita Srivastava & A. K. Srivastava, "Biological phosphate removal by model based fed-batch cultivation of Acinetobacter calcoaceticus",Poster presentation CHEMCON 04 (Indian Chemical Engineering Congress 2004) Dec 27 – 30, 2004 at Grand Hyatt Hotel, Mumbai.

42. Farkya Sunita, A. Julka, R. Mehra, V. Datta, A. K. Srivastava & V.S. Bisaria, "Enhanced Production of Secondary Metabolites by Biotic Elicitors in Plant Cell Suspension Cultures", Oral presentation in Asia Pacific Biochemical Engineering conference 2005, May 15-19, 2005, Jeju Island, Korea.

43. A. K. Srivastava, Keynote lecture on "Use of Mathematical Modeling for Bioreactor Design and Operation" in the National Seminar on "Emerging Facets of Chemical Engineering and Biotechnology" at LIT Nagpur during 28 – 29thSeptember 2005.

44. Smita Srivastava & A. K. Srivastava, "Biological phosphate removal by model based continuous cultivation ofAcinetobacter calcoaceticu", Oral presentation CHEMCON 05 (Indian Chemical Engineering Congress 2005) Dec 14 – 17, 2005 at IIT Delhi, New Delhi.

45. Gunjan Prakash & A. K. Srivastava, "Production of Azadiractin (Biopesticide) by Plant cell Cultivation of Azadirachta indica in Bubble Column Reactor", Oral presentation CHEMCON 05 (Indian Chemical Engineering Congress 2005) Dec 14 – 17, 2005 at IIT Delhi, New Delhi.

46. Ashish Baldi, V. S. Bisaria, & A. K. Srivastava, "Cell suspension cultures of Linum album: Optimization of growth and Podophyllotoxin production using statistical experimental design", Oral presentation CHEMCON 05 (Indian Chemical Engineering Congress 2005) Dec 14 – 17, 2005 at IIT Delhi, New Delhi.

47. Mudit Srivastava, Shilpi Khanna, S. D. Dawande & A. K. Srivastava, "Model based Fed-batch Cultivation strategies for Biopolymer poly-beta-hydroxybutyrate (PHB) production by Ralstonia eutropha", Oral presentation CHEMCON 05 (Indian Chemical Engineering Congress 2005) Dec 14 – 17, 2005 at IIT Delhi, New Delhi.

48. Shilpi Khanna & A. K. Srivastava, "Productivity enhancement of Poly-beta-hydroxybutyrate by fed-batch cultivation using variable feeding rate by Ralstonia eutropha", Oral presentation CHEMCON 05 (Indian Chemical Engineering Congress 2005) Dec 14 – 17, 2005 at IIT Delhi, New Delhi.

49. Sofia P. Karur, Rajendra Prasad, V. K. Vijay & A. K. Srivastava, "Antibacterial properties of spices", Paper presentation & in Proceedings of the 2nd International Congress on Chemistry and Environment held at Indore, India in December 2005.

50. Sofia P.Karur, Rajendra Prasad, V. K. Vijay & A. K.Srivastava, "Spices: Natural antimicrobials", Paper presentation & in Proceedings of International Conference on Science and Technology for Sustainable Development held at Changanassery Kerala India from10th-13th August 2005.

51. Sofia P.Karur, Rajendra Prasad, V. K. Vijay & A. K.Srivastava, "Evaluation of antibacterial activity of Indian spices against common food borne pathogens", Paper presentation & in Proceedings of International Conference on Environmental Management (ICEM) held at Kukatpally, Hyderabad India from 28th-30th October 2005.

52. Sofia P.Karur, Rajendra Prasad, V. K. Vijay & A. K.Srivastava, "Food Safety: Spices a boon", Paper presentation & in Proceedings of national Seminar on empowering the masses through technical approach and skill training held at National Institute of Technical Teachers Training and Research Chandigarh India from 1-2nd December 2005.

53. Sofia P.Karur, Rajendra Prasad, V. K. Vijay & A. K.Srivastava, "Assessment of antibacterial activity of clove using hemocytometer technique", Abstract for poster presentation Third international Conference on Plant and Environmental Pollution ICPEP-3 at National Botanical Research Institute Lucknow India, 29 November-2nd December 2005.

54. A. K. Srivastava, "Optimization of the production of Plant therapeutic compounds bymathematical modeling", Oral presentation in "National Conference on Bioinformatics" on Feb 1-2, 2006 organized by College of Fisheries, Mangalore.

55. A. K. Srivastava, "In-vitro production of secondary metabolites", Invited oral presentation in "Workshop on Biotechnological approaches in conservation of Medicinal plants" at TERI, Darbari Seth Block, India Habitat Centre, New Delhi on 21st February 2006.

56. A. K. Srivastava, "Biochemical Engineering Challenges in the Bio-metabolite Overproduction", Keynote lecture in National Seminar on "Emerging Trends in Bioprocess and Food Processing Industries" at Department of Biochemical Engineering and Food Technology, Kanpur during March 25-26, 2006.

57. A. K. Srivastava, "Bioprocess Engineering Challenges in the Biodegradable polymer (PHB) Production", Research Seminar at Institute of Technology and Engineering, Massey University, Palmerston North New Zealand on 17th May 2006.

58. A. K. Srivastava, "Polyhydroxybutyrate – an alternate to Plastics?", Key note Lecture at "International conference on Modeling in Chemical and Biological Engineering Sciences" Bangkok, Thialand during October 25 – 27, 2006.

59. Gunjan Prakash & A. K. Srivastava, "Production of Biopesticide by plant cell suspension culture of Azadirachta indica (Neem)", Invited lecture at third convention of BRSI & International Conference on Exploring Horizons in Biotechnology – A Global venture Sardar Patel University, Vallabh Vidyanagar (Gujrat) during November 2-4, 2006.

60. Shilpi Khanna & A. K. Srivastava, "Screening of carbon sources for production of Poly (3-Hydroxybutyrate- Co-3 Hydroxy valerate) by Ralstonia eutropha", Oral presentation CHEMCON 06 (Indian Chemical Engineering Congress 2006) Dec 27 – 30, 2006 at Bharuch (Gujrat).

61. Smita Srivastava & A. K. Srivastava, "Enhanced Azadirachtin production in low shear Bioreactors", Oral presentation CHEMCON 06 (Indian Chemical Engineering Congress 2006) Dec 27 – 30, 2006 at Bharuch (Gujrat).

62. A. K. Srivastava, "Importance of Bioprocess Engineering in mass scale production of Bio-technological products", Invited lecture in National symposium on Entrepreneurship in Biotechnology: Scope and Prospects in North East India, January 20-21, 2007 IIT Guwahati, Guwahati.

63. Ashish Baldi, A. K. Srivastava & V. S. Bisaria, "Isolation and characterization of lignans from cell cultures of Linum album", International symposium of Bio-chromatography and Nano-biotechnology 2007 held at Vellore in February 2007.

64. Baldi A., Srivastava A. K. & Bisaria V. S., "Cyclodextrin complexed precursor addition as yield enhancement strategy for production of anticancer lignans in suspension cultures of Linum album", in Biohorizon 2007 – Indo-Korean Joint symposium, held at New Delhi in Feb. 2007 (First prize).

65. A. K. Srivastava, "Production of Biodegradable Polymer Polyhydroxybutyrate using Ralstonia eutropha", Refreshers course on "Biotechnological approaches for Chemical Process Industries" held at H.B.Technological Institute, Kanpur May 11-15, 2007.

66. A. K. Srivastava, "Use of Bioreactor Plant Cell cultivation as a novel technique for mass production of Bio-pesticide", Key note lecture in Asia Pacific Conference on Plant Tissue Culture and Agribiotechnology (APaCPA) 2007 held at Asian Institute of Medicine Science and Technology, Malaysia, June 17-21 2007.

67. Smita Srivastava & A. K. Srivastava, "Application Of NADH Fluorescence Sensing in Plant Cell Bioreactor for Azadirachtin Production", Oral paper presentation in Asia Pacific Conference on Plant Tissue Culture and Agribiotechnology (APaCPA) 2007 held at Asian Institute of Medicine Science and Technology, Malaysia, June 17-21 2007.

68. Shilpi Khanna & A. K. Srivastava, "Continuous cultivation of Wautersia eutropha for the production of a Biodegradable polymer (Poly–β-hydroxybutyrate)", Oral paper presentation in Asia Pacific Conference on Plant Tissue Culture and Agribiotechnology (APaCPA) 2007 held at Asian Institute of Medicine Science and Technology, Malaysia, June 17-21 2007.

69. Sunita Farkya, Baldi A., Kumar V., Vatsala Datta, Mehra R., Gupta N., Jain A., Srivastava A. K. & Bisaria V. S., "Impact of Symbiotic fungi on production of Secondary metabolites by Plant Cell Culture", Oral paper presentation in Asia Pacific Conference on Plant Tissue Culture and Agribiotechnology (APaCPA) 2007 held at Asian Institute of Medicine Science and Technology, Malaysia, June 17-21 2007.

70. A. K. Srivastava, "Microbial Production of Biopolymers", Invited Lecture in the "National conference in Biotechnology" held at Advanced Centre for Biotechnology, Maharshi Dayanand University Rohtak (Haryana) on August 20-21, 2007.

71. A. K. Srivastava, "Challenges in the Microbial production of Biopolymers", Key note Lecture in the 23rd National convention of Chemical Engineers on Recent Trends in Chemical Engineering, October 5-7, 2007 IIT Roorkee, Roorkee. Also Chairman of the Biochemical, Food Processing and Biotechnology Session of the above conference.

72. A. K. Srivastava & G. Prakash, "Mass Production of Azadirachtin (A Bio-pesticide) from continuous cultivation of Plant cells in Bioreactor", Invited Plenary Lecture in World Neem Conference 21-24 November, 2007 at Coimbatore (India) Also Panelist for poster evaluations.

73. Smita Srivastava & A. K. Srivastava, "Large Scale cultivation of Azadirachta indica plant cells for Azadirachtin production and application of non-invasive methods for on-line biomass estimation in bioreactor(s)", Oral presentation in World Neem Conference 21-24 November, 2007 at Coimbatore (India).

74. S. Farkya, A. Baldi, V. Kumar, V. Dutta, R. Mehra, N. Gupta, A. Jain, A. K. Srivastava & V. S. Bisaria, "Effect of Phyto promotional fungi on synthesis of secondary metabolites in plant cell cultures", Oral Presentation in International Conference on New Horizons in Biotechnology, November 26 – 29, 2007 at Trivandrum (India).

75. A. K. Srivastava, "Production of bio-pesticide by model based continuous cultivation with in – situ cell retention", Oral Presentation in International Conference on New Horizons in Biotechnology, November 26 – 29, 2007 at Trivandrum (India).

76. Shilpi Khanna & A. K. Srivastava, "On-line characterization of Physiological state in poly (b-hydroxybutyrate) production by Wautersia eutropha", Poster Presentation in International Conference on New Horizons in Biotechnology, November 26 – 29, 2007 at Trivandrum (India).

77. Smita Srivastava & A. K. Srivastava, "Engineering Challenges in the large Scale cultivation of hairy roots in bioreactors for plant secondary metabolite production", Poster Presentation in International Conference on New Horizons in Biotechnology, November 26 – 29, 2007 at Trivandrum (India).

78. A. K. Srivastava & Shilpi Khanna, "Production of Biopolymer (PHB) by Fed-batch and continuous cultivation – A Comparison", Oral Paper presentation in 60th Annual meeting of Indian Institute of Chemical Engineers, CHEMCON 1007 Kolkata, December 27-30, 2007. Also Chaired a session on Biotechnology (R6B) on 29th December 2007.

79. M. Srivastava, Shilpi Khanna & A. K. Srivastava, "Effect of dilution rate on PHB production by Wautersia eutropha in continuous cultivation - A model based approach", Poster presentation in 60th Annual meeting of Indian Institute of Chemical Engineers, CHEMCON 1007 Kolkata, December 27-30, 2007.

80. A. K. Srivastava, "Biochemical Engineering challenges in the overproduction of fermentation products", Invited lecture in National conference – cum – Seminar on "Emerging trends in Biotechnology" IMS Engineering College, Ghaziabad, 18-19 January 2008. Also chaired Industrial