Studies of Temperature Shift Fermentation for Eicosapentaenoic Acid Production by Nitzschia laevis / 中国生物工程杂志
China Biotechnology
; (12)2006.
Article
em Zh
| WPRIM
| ID: wpr-685698
Biblioteca responsável:
WPRO
ABSTRACT
Fermentation for Eicosapentaenoic Acid(EPA) production by Nitzschia laevis at various temperature between 10℃ and 30℃ was investigated and the dynamics characteristics during fermentation process were also analyzed.Based on the results,a varying temperature nursing method of two stage control strategy is proposed:During the first stage,which comprises the delay phase and the initial index phase,the temperature is maintained at 25℃;then the temperature is shifted to 20℃ and kept up till the end of the fermentation process.By this method,a EPA content of 6.0% and a yield of 291.60 mg/L have been gained.These are 24.07% and 18.81% higher than that of fixed temperature(25℃) fermentation,respectively.
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Índice:
WPRIM
Idioma:
Zh
Revista:
China Biotechnology
Ano de publicação:
2006
Tipo de documento:
Article