Keywords Xanthophyllomyces dendrorhous;Astaxanthin;Mutant screening;Fermentation conditions;Extractablity;Scale-up experiment;Metabolism regulation;Reactive oxygen species;

• 红法夫酵母;虾青素;诱变选育;发酵条件;提取率;放大培养实验;代谢调控;活性氧;