食品工业科技2012，Vol.33Issue(11)：176-178,3.
氮饥饿/过氧化氢协同胁迫促进法夫酵母合成虾青素
Enhancing astaxanthin synthesis of Phaffia rhodozyma by nitrogen starvation and peroxide collaborative stresses
摘要
Abstract
Astaxanthin as antioxidant plays an important role in the responses of microorganisms to the environmental stimulation and stress. The collaborative effects of nitrogen starvation and peroxide stresses on astaxanthin production of Phaffia rhodozyma were investigated. The results showed that low concentration of nitrogen source accelerated astaxanthin biosynthesis,production of astaxanthin was inhibited rapidly with the reduction carbon and nitrogen source ratio,the highest astaxanthin productivity was 0.32mg/g at the carbon and nitrogen source ratio of 3：0.6. Peroxide collaborative stress could farther enhance astaxanthin yield significantly with feeding of 3mmol/L and 2mmol/L peroxide at 24h（exponential phrase）and 36h respectively,a maximal astaxanthin yield of 0.59mg/g cell was achieved,which was 63.9% higher than the control.关键词
虾青素/法夫酵母/氮饥饿/过氧化氢/协同胁迫Key words
astaxanthin/Phaffia rhodozyma/deficient nitrogen source H2O2 collaborative stress分类
轻工纺织引用本文复制引用
朱龙宝,葛飞,魏胜华,李婉珍,陶玉贵..氮饥饿/过氧化氢协同胁迫促进法夫酵母合成虾青素[J].食品工业科技,2012,33(11):176-178,3.基金项目
安徽省高校自然科学研究基金 （）
