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毕赤酵母重组菌GS115-Ch-Glu发酵培养基设计及发酵条件优化

Designing the Medium for Pichia pastoris GS115-Ch-Glu Fermentation and Optimizing Its Fermentation Conditions
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摘要 以毕赤酵母重组菌(Pichia pastoris)GS115-Ch-Glu为研究对象,进行了亚麻子发酵脱毒工艺的研究,并对重组菌的发酵培养条件进行优化。结果表明,毕赤酵母重组菌GS115-Ch-Glu发酵扩大培养的培养基最佳碳源为2.5%玉米淀粉,最佳氮源为5.0%黄豆粕。优化后的基础发酵培养基发酵条件为温度28℃、转速250 r/min、发酵时间33 h、初始p H 6.5、接菌量1.5%、装液量50 m L/250 m L。在此最佳发酵条件下,菌体产量为9.0×1010个/m L。 Pichia pastoris GS115-Ch-Glu as a sort of useful recombinant yeast was used to detoxify in linseed. Its fermentation conditions were optimized. The results showed that the optimal carbon and nitrogen source were 2.5% corn starch and 5.0% soybean meal. The optimal fermentation conditions in basal medium were the temperature of 28 ℃, the speed of 250 r/min, the incubation time of 33 hours, the initial pH value of 6.5, the inoculation rate of 1.5% and the liquid volume of 50 mL/250 mL. Under these conditions, the fermentation yield of the cell production was per milliliter of 9.0× 10^10 strains.
出处 《湖北农业科学》 2015年第5期1155-1158,共4页 Hubei Agricultural Sciences
基金 广东高校特色调味品工程技术开发中心建设项目(GCZX-B1103) 广东轻工职业技术学院校级项目(KJ201107)
关键词 毕赤酵母(Pichia pastoris) 发酵条件 优化 Pichia pastoris fermentation condition optimization
作者简介 冯爱娟(1976-),女,湖北荆门人,讲师,主要从事微生物发酵方面的研究,(电话)13450223296(电子信箱)2005102037@gditc.edu.cn; 通信作者,邓毛程,教授,博士,主要从事生物发酵、海洋微生物及表面活性剂方面的研究,(电话)13924185449(电子信箱)dengmc@163.com。
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