期刊
BIORESOURCE TECHNOLOGY
卷 271, 期 -, 页码 118-124出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2018.09.114
关键词
Schizochytrium sp.; Docosahexaenoic acid; Cane molasses; Algae-residue
资金
- Outstanding Youth Foundation of Jiangsu Nature Science Foundation, China [BK20160092]
- National Natural Science Foundation of China, China [21306085]
- Program for Innovative Research Teams in Universities of Jiangsu Province
- Synergetic Innovation Center for Advanced Bio-Manufacture, China [XTE1829, XTC1810]
The aim of this work was to reduce the algae-residue emission and make use of cane molasses as fermentation materials for docosahexaenoic acid (DHA) fermentaion by Schizochytrium sp., which further could cut the cost of DHA production. Algae-residue and cane molasses were respectively used as nitrogen and carbon sources to replace yeast extract and glucose. A significant DHA yield of 18.58 g/L was obtained using algae-residue, while cane molasses could not be used well as sole carbon source due to the presence of undesirable substance. A twostage culture strategy with glucose followed by pretreated cane molasses as carbon source was developed, resulting in a final DHA yield of 15.22 g/L. This study therefore offers an economical and green strategy for DHA production by Schizochytrium sp.
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