麻疯树籽油溶剂萃取脱酸工艺的研究  

Deacidification of Jatropha curcas L.seed oil with solvent extraction

作　　者：刘大川[1] 佘珠花[1] 刘金波[2] 叶平[2] 张安清[2] 

机构地区：[1]武汉工业学院 [2]安陆市天星粮油机械设备有限公司,湖北省安陆市太白大道25号432600

出　　处：《中国油脂》2005年第6期26-28,共3页China Oils and Fats

摘　　要：用溶剂萃取麻疯树籽油中的游离脂肪酸,以降低其酸值。通过实验得到的最佳工艺条件为:以甲醇为溶剂,油与甲醇比为1∶2.0(W/V),温度32℃,萃取次数4次,每次萃取时间10min。在最佳条件下可将低温压榨麻疯树籽毛油酸值从10.48mgKOH/g降低到0.47mgKOH/g,基本达到后续工序对油品质的要求。该工艺与常规的碱炼脱酸相比,操作简单,毛油炼耗大大降低,且萃取后的甲醇可回收再利用,同时可直接得到质量好的副产品脂肪酸,有利于后续工序的进行。Jatropha curcas L.seed oil was deacidified by extracting with solvent.The results showed that the optimum conditions were as follows:methyl alcohol as the solvent,the ratio of oil to methyl alcohol 12.0(W/V),extraction temperature 32,extracting 4 times for once 10 min.The AV can be reduced from 10.48 mgKOH/g to 0.47 mgKOH/g under these conditions,which reaches the requisition for oil of the follow-up process.Compared with routine alkali neutralization,its operation is simple and the oil loss is reduced greatly,and the methyl alcohol can be recovered.It can get the by-product of fatty acid with high quality at the same time.

关 键 词：麻疯树籽油 游离脂肪酸 甲醇 溶剂萃取 酸值 

分 类 号：TS224.6[轻工技术与工程—粮食、油脂及植物蛋白工程]