Study on the Production of Ergosterol using Corn Straw Hydrolyzates Fermentation

China Biotechnology

2008, Vol. 28

Issue (12): 47-51 DOI:

Study on the Production of Ergosterol using Corn Straw Hydrolyzates Fermentation

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Abstract

The ergosterols were produced from corn straw hydrolysates fermented by ergosterol yeast, which was obtained from protoplast electrofusion. The effects on the yield of ergosterol were studied in the condition of shaker, such as initial sugar concentration, nitrogen source, pH value and fermentation time. The technical conditions were optimized according to the DPS center-united experimental design principles and the method of response surface analysis with four factors and three levels. The results indicated that the four factors had significant correlation to ergosterol accumulation. The biomass and the ergosterol content could be up to 8.67g/L and 2.37% respectively after cultivated for 32h under optimal technical condition. The structure of ergosterol crystal was characterized by UV, IR and SEM. A new approach of biomass source application was presented.

Key words： biomass corn straw ergosterol

Received: 22 August 2008 Published: 20 April 2009

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Cite this article:

. Study on the Production of Ergosterol using Corn Straw Hydrolyzates Fermentation. China Biotechnology, 2008, 28(12): 47-51.

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https://manu60.magtech.com.cn/biotech/ OR https://manu60.magtech.com.cn/biotech/Y2008/V28/I12/47

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