Statistical optimization of growth media for Paecilomyces lilacinus 6029 using non-edible oil cakes

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• 作者：Abhishek Sharma (1)
  Satyawati Sharma (1)
  Aditya Mittal (2)
  Satya Narayan Naik (1)
  
• 关键词：Paecilomyces lilacinus 6029 ; Karanja cake ; Response surface methodology
• 刊名：Annals of Microbiology
• 出版年：2014
• 出版时间：June 2014
• 年：2014
• 卷：64
• 期：2
• 页码：515-520
• 全文大小：
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• 作者单位：Abhishek Sharma (1)
  Satyawati Sharma (1)
  Aditya Mittal (2)
  Satya Narayan Naik (1)
  
  1. Centre for Rural Development & Technology, Indian Institute of Technology Delhi, Hauz khas, New Delhi, 110016, India
  2. Kusuma School of Biological Sciences, Indian Institute of Technology Delhi, Hauz khas, New Delhi, 110016, India
  
• ISSN：1869-2044

文摘

The development of biofriendly and economical alternatives to chemical pesticides is a globally important scientific challenge. In this work, Karanja-based media conditions were optimized for obtaining high production of biomass and spores of a biocontrol agent, the entomopathogenic fungus Paecilomyces lilacinus 6029, using a two-step statistical approach coupled with rigorous experimentation. In the first step, non-edible Karanja cake was screened out as a major substrate from other oil cakes. In the second step, biomass production was maximized by applying response surface methodology to experimental variations in key physico-chemical factors: carbon/nitrogen (C/N) ratio and pH. This approach eventually predicted a maximum biomass production of 10.559?g/l with a medium having a C/N ratio of 35.88 and pH?5.9. An experimental production of 10.529?g/l biomass was obtained. The remarkable agreement between the predicted and the experimentally obtained biomass confirm the validity of the approach utilized to maximize production of P. lilacinus.