Efficient arachidonic acid-rich oil production by Mortierella alpina through a repeated fed-batch fermentation strategy

Xiao Jun Ji, Ai Hui Zhang, Zhi Kui Nie, Wen Jia Wu, Lu Jing Ren, He Huang

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52 引用 (Scopus)

摘要

Arachidonic acid (ARA)-rich oil production by Mortierella alpina is a long fermentation period needed process due to the low growth rate of the filamentous fungus used. This causes the low productivity of ARA-rich oil and hinders its industrial mass scale production. In the present study, different fed-batch strategies were conducted to shorten the fermentation period. The result showed that compared with the batch culture, the fermentation period was shortened from 7. days to 5. days with the productivity of ARA-rich oil increased from 0.9. g/(L·d) to 1.3. g/(L·d) by using the fed-batch fermentation strategy. Furthermore, repeated fed-batch fermentation strategy was adopted to achieve the purpose of continuous production. By using this strategy, the fermentation period was shortened from 40. days to 26. days in a four cycle repeated fed-batch fermentation. This strategy proved to be convenient and economical for ARA-rich oil commercial production process.

源语言英语
页(从-至)356-360
页数5
期刊Bioresource Technology
170
DOI
出版状态已出版 - 10月 2014

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