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Production of Astaxanthin by Xanthophyllomyces dendrorhous ZJUT46 with Fed-Batch Fermentation in 2.0 M3 Fermentor

Zhong-Ce Hu, Yu-Guo Zheng*, Zhao Wang and Yin-Chu Shen

Institute of Bioengineering, Zhejiang University of Technology, Hangzhou 310014, PR China

Article history:

Received June 23, 2005
Accepted April 26, 2006

Key words:

astaxanthin, fed-batch fermentation, carotenoid, Xanthophyllomyces dendrorhous

Summary:

Astaxanthin is a main carotenoid pigment. Fed-batch fermentation bioprocesses of astaxanthin in 2.0 M3 fermentor have been investigated. Moreover, pH shift control was employed in fed-batch fermentation at 2.0 M3 scale. The results of astaxanthin fermentation showed that the fed-batch fermentation with pH shift strategy was the best among all the experiments, and the maximum astaxanthin concentration of 39.47 mg/L was achieved at 132 h.

 


*Corresponding author:           zhengyg@zjut.edu.cn
                                               ++86 571 88 320 630
                                               ++86 571 88 320 630

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