文献类型：期刊文献

中文题名：植物油脂多不饱和脂肪酸的分离与富集研究

英文题名：Separation and enrichment of polyunsaturated fatty acids in different vegetable fat

作者：吕微[1] 蒋剑春[1] 徐俊明[1]

第一作者：吕微

机构：[1]中国林业科学研究院林产化学工业研究所生物质化学利用国家工程实验室国家林业局林产化学工程重点开放性实验室江苏省生物质能源与材料重点实验室

年份：2011

期号：10

起止页码：281-284

中文期刊名：食品工业科技

外文期刊名：Science and Technology of Food Industry

收录：CSTPCD;;北大核心:【北大核心2008】；CSCD:【CSCD2011_2012】；

基金：国家"863"计划(2010AA101602);国家林业局公益性行业专项经费(201104046);国家自然基金(30700634);江苏省基金(BK2009545)

语种：中文

中文关键词：小桐子油;光皮油;桐油;棕榈油;大豆油;PUFAs;分离;尿素包合法

外文关键词：Jatropha curcas L. seed oil; comus wilsoniana seed oil; tung oil; palm oil; soybean oil; polyunsaturated fatty acid; separation; urea adduction fractionation

分类号：TS221

摘要：利用低温冷冻结晶和尿素包合法在同一工艺条件下考察了五种植物油脂中多不饱和脂肪酸的分离和富集效果。低温冷冻结晶初步分离得到的脂肪酸Ⅰ中,仅含少量饱和脂肪酸,总不饱和脂肪酸含量达到95%以上,达到PUFAs的预浓缩目的。尿素包合法富集PUFAs实验中,光皮油、棕榈油脂中PUFAs的分离效果最好,亚油酸纯度达到96.67%和97.18%;小桐子油和大豆油脂中亚油酸含量分别为81.74%和91.75%;桐油中PUFAs的富集效果不明显,总PUFAs纯度仅由原来的85.36%提高到91.62%。
The separating and purifying effect of polyunsaturated fatty acids（PUFAs） in different vegetable fat were studied using lower temperature crystallization and urea adduction fractionation under the same technological conditions. Saturated fatty acid and unsaturated fatty acids（UFAS） were isolated by lower temperature crystallization, A little bit of saturated fatty acid and over 95% UFAs was detected in fatty acid I obtained from the experiment of lower temperature crystallization,indicating that PUFAs was preconcentrated. For the enrichment of PUFAs using urea adduction fractionation,the best separation effect were displayed when PUFAs derived from palm oil and comus wilsoniana seed oil were isolated,purities of linoleic acid were 97.18% and 96.67%.The contents of linoleic acid in Jatropha curcas L. seed oil and soybean oil were 81.74% and 91.75%.Unconspicuous effect of PUFAs in tung oil separation was depicted with the purity of total PUFAs increase from 85.36% to 91.62%,