Astaxanthin production by Phaffia rhodozyma using a pH-stat control
نویسندگان
چکیده
Fed-batch essays using yeast Phaffia rhodozyma were performed to obtain high astaxanthin concentrations. The yeast was grown over an inexpensive media obtained from the Yucca fillifera date. Feeding was carried out through implantation of a pH-stat control system. Biomass (28.7 mg/l) and pigment (18 mg/l) concentration three folded those that were obtained by previous batch cultures.
منابع مشابه
Selection of Astaxanthin-Overproducing Mutants of Phaffia rhodozyma with beta-Ionone.
beta-Ionone, an end ring analog of beta-carotene, inhibits astaxanthin production in the red yeast Phaffia rhodozyma. Astaxanthin-overproducing mutants of this yeast are easily spotted on beta-ionone-containing yeast malt agar plates. beta-Ionone appears to block astaxanthin synthesis at the beta-carotene level.
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