Sucrose-added fed-batch culture for 1,11-dicarboxylic acid production by candida tropicalis and recombinant candida tropicalis strain

Hong Gao, Ming Liu, Ying Ming Huang, Yu Tao Hua, Zhu An Cao

Research output: Contribution to journalArticlepeer-review

Abstract

Candida tropicalis strain Fl0-1 and its recombinant strain CZ-15 can be used for 1,11-dicarboxylic acid (DCA13) production, and in CZ-15, one copy of carnitine acetyltransferase(CAT) genes is disrupted. The sucrose-added fed-batch fermentation of F10-1 and CZ-15 was studied. The results showed that the optimal feeding time and the optimal sucrose concentration were different for F10-1 and CZ-15. By feeding sucrose in the acid production stage, for F10-1 and CZ-15, the acid production was increased by 25.0% and 23.4%, reaching 99.5 and 108.1 g / L, and the alkane conversion rate was increased by 35.5% and 28.6%, respectively.

Original languageChinese (Simplified)
Pages (from-to)814-817
Number of pages4
JournalGuocheng Gongcheng Xuebao/The Chinese Journal of Process Engineering
Volume6
Issue number5
Publication statusPublished - 1 Oct 2006

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