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Efficient arachidonic acid-rich oil production by Mortierella alpina through a repeated fed-batch fermentation strategy.
- Source :
-
Bioresource Technology . Oct2014, Vol. 170, p356-360. 5p. - Publication Year :
- 2014
-
Abstract
- 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. [ABSTRACT FROM AUTHOR]
- Subjects :
- *ARACHIDONIC acid
*MORTIERELLA
*FERMENTATION
*VEGETABLE oils
*FUNGAL cultures
Subjects
Details
- Language :
- English
- ISSN :
- 09608524
- Volume :
- 170
- Database :
- Academic Search Index
- Journal :
- Bioresource Technology
- Publication Type :
- Academic Journal
- Accession number :
- 98143477
- Full Text :
- https://doi.org/10.1016/j.biortech.2014.07.098