Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2015, Vol. 31 ›› Issue (11): 50-53.doi: 10.11924/j.issn.1000-6850.casb14110113

Special Issue: 生物技术

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Study on Production Process Parameters of Single Cell Protein Fermented by Aspergillus niger and Candida utilis

  

  • Received:2014-11-18 Revised:2015-02-02 Accepted:2015-02-11 Online:2015-05-06 Published:2015-05-06

Abstract: To produce single cell protein, corn straw was fermented by Aspergillus niger and Candida utilis. Activity strains Aspergillus niger ZM-8 and Candida utilis SJ2 which had high yield of cellulase were screened by space mutation. Single cell protein was produced by fermentation of corn straw using mixed solid state fermentation. Effects of inoculation quantity and vaccination time of Candida utilis SJ2, combined fermentation time and other factors influencing yield of SCP were studied. The results showed that inoculating Aspergillus niger ZM-8 on the rate of 1:30 first, then inoculating 5% Candida utilis SJ2 after 24 hours, and fermenting for 36 hours was the optimal fermentation condition. And the content of SCP in the product reached 25.44% under the optimal condition.