期刊文献+

利用甘蔗糖蜜发酵生产花生四烯酸的研究 被引量:1

Arachidonic acid production from cane molasses by Mortierella alpina
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摘要 通过培养高山被孢霉利用糖蜜来发酵生产花生四烯酸(ARA),研究了不同甘蔗糖蜜预处理方法对ARA发酵生产的影响。研究表明:H2SO4法是最利于ARA发酵生产的糖蜜预处理方法。利用预处理的甘蔗糖蜜发酵生产ARA,通过单因素实验设计,确定了最优的培养条件,包括初始还原糖80 g/L,N源6 g/L,接种量20%,初始pH6.0和培养温度25℃,在此条件下发酵,干细胞质量、油脂含量、ARA产量和糖利用率分别达到28.5 g/L、11.7g/L、3.68 g/L和94.5%。 Arachidonic acid (ARA) fermentation by Mortierella alpina was carried out using cane molasses. Several different preparation methods were investigated to evaluate the optimal process of cane molasses method. The results indicated that sulfuric acid process was the best method. The cultivation parameters were as follows:reducing sugar concentration 80 g/L, nitrogen resource concentration 6 g/L, inoculum density 20% ,initial pH 6. O,and cultivation temperature 25℃. The resultant dry cell weight, total lipid content, arachidonic acid yield, and sugar utilization were 28.5 g/L, 11.7 g/L, 3.68 g/L, and 94. 5%, respectively.
出处 《生物加工过程》 CAS CSCD 2013年第3期1-6,共6页 Chinese Journal of Bioprocess Engineering
基金 江苏省六大人才高峰项目(2008-D-63) 江苏省研究生创新计划(CX10B_175Z)
关键词 花生四烯酸 糖蜜 发酵 高山被孢霉 arachidonic acid cane molasses fermentation Mortierella alpina
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参考文献14

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