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ORIGINAL ARTICLE
Year : 2015  |  Volume : 11  |  Issue : 44  |  Page : 448-456

Culture conditions for production of biomass, adenosine, and cordycepin from Cordyceps sinensis CS1197: Optimization by desirability function method


1 Academy of Scientific and Innovative Research, CSIR-CFTRI, Mysore; Department of Food Engineering, CSIR-Central Food Technological Research Institute, Mysore, Karnataka, India
2 Department of Plant Cell Biotechnology, CSIR-Central Food Technological Research Institute, Mysore, Karnataka, India

Correspondence Address:
Manohar Balaraman
Department of Food Engineering, CSIR-Central Food Technological Research Institute, Mysore - 570 020, Karnataka
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0973-1296.168946

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Background: Cordyceps sinensis (CS) is a traditional Chinese medicine contains potent active metabolites such as nucleosides and polysaccharides. The submerged cultivation technique is studied for the large scale production of CS for biomass and metabolites production. Objective: To optimize culture conditions for large-scale production of CS1197 biomass and metabolites production. Materials and Methods: The CS1197 strain of CS was isolated from dead larvae of natural CS and the authenticity was assured by the presence of two major markers adenosine and cordycepin by high performance liquid chromatography and mass spectrometry. A three-level Box-Behnken design was employed to optimize process parameters culturing temperature, pH, and inoculum volume for the biomass yield, adenosine and cordycepin. The experimental results were regressed to a second-order polynomial equation by a multiple regression analysis for the prediction of biomass yield, adenosine and cordycepin production. Multiple responses were optimized based on desirability function method. Results: The desirability function suggested the process conditions temperature 28°C, pH 7 and inoculum volume 10% for optimal production of nutraceuticals in the biomass. The water extracts from dried CS1197 mycelia showed good inhibition for 2 diphenyl-1-picrylhydrazyl and 2,2-azinobis-(3-ethyl-benzo-thiazoline-6-sulfonic acid-free radicals. Conclusion: The result suggests that response surface methodology-desirability function coupled approach can successfully optimize the culture conditions for CS1197.


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