Use of molasses for DHA production by Schizochytrium sp.

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  • (Guangdong Provincial Bioengineering Institute (Guangzhou Sugarcane Industry Research Institute), Guangdong Provincial Key Laboratory of Sugarcane Improvement and Biorefinery, Guangdong Provincial Engineering Laboratory of Biomass High Value Utilization, Guangdong Provincial Engineering Technology Research and Development Center of Biomass Comprehensive Utilization, Guangzhou Key Laboratory of  Biomass Comprehensive Utilization, Guangzhou, Guangdong, 510316, China)

Received date: 2017-06-30

  Revised date: 2017-08-03

  Online published: 2017-11-27

Abstract

Docosahexaenic acid production by Schizochytrium sp.using molasses as carbon source was studied: Molasses from different sugar refineries were prepared as carbon source. Molasses sources and molasses proportion in the medium were investigated to evaluate the effect on the resultant dry cell weight, total lipid content and DHA yield. The results indicated that the colloid and excessive metal ions in the cane molasses had the noticeable negative effects on the Schizochytrium sp.growth, the result was depressing even if the proportion of molasses significantly reduced.The application of the cane molasses as a substitute carbon source in the actual production was limited.On this basis the prospect of refined sugar molasses was evaluated.The result was very close between glucose and refined sugar molasses when the refined sugar molasses proportion in the medium is below 80%, refined sugar molasses may partly substitute for glucose as carbon source of Schizochytrium sp.

Cite this article

BAN Jia et al . Use of molasses for DHA production by Schizochytrium sp.[J]. Food and Fermentation Industries, 2017 , 43(11) : 39 -43 . DOI: 10.13995/j.cnki.11-1802/ts.015075

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