二十碳五烯酸的菌种选育及发酵条件

二十碳五烯酸的菌种选育及发酵条件

STRAIN SCREENING AND THE FERMENTATTION CONDITIONS OF EICOSAPENTAENOIC ACID

杨革 徐承水 

摘 要:利用含亚麻子油的斜面培养基连续传代和逐渐降低培养温度,诱导筛选的方法,从大量丝状真菌中选育到一株产二十碳五烯酸(all-cis-5,8、11、14、17–eicosapentaenoicacid)较高的被孢霉菌(Motierellasp.)SM481.研究得到最适培养基及最适培养条件.在最适培养及产二十碳五烯酸条件下,细胞干重和二十碳五烯酸产量分别为28.8g/L和0.127g/L

关键词:二十碳五烯酸,被孢霉,发酵调控

分类号:Q939.97  文献标识码:A

文章编号:1007-3515(2000)03-0366-0370

作者单位:杨革(山东曲阜师范大学生物系曲阜 273165) 

     徐承水(山东曲阜师范大学生物系曲阜 273165) 

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