微生物油脂中多不饱和脂肪酸的富集研究

Study on the enriching of PUFA of microorganisms

采用脲包法富集微生物油脂中的多不饱和脂肪酸 (亚油酸和γ -亚麻酸 ) .结果表明 :当混合脂肪酸∶尿素∶甲醇为 1∶3∶7.88时 ,富集效果最佳 ,微生物油脂中亚油酸和γ -亚麻酸的含量从 9.88%增加到 44 .79% ,其中γ -亚麻酸的含量从 2 .0 3%增加至 19.79% ,富集了将近

A method of urea fractionation was used to enrich polyunsaturated fatty acids (PUFA). The results show when mixed fatty acids: urea: methanol = 1∶3∶7.88, the optimum enriching effect was obtained. The content of linoleic and γ-linol enic acids can raise from 9.88% to 44.79%, of which, the content of γ-linolenic acids from 2.03% to 19.79%, enriching about 10 times.