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酸解巴沙鲶鱼油制备富含OPO的人乳替代脂

China Oils and Fats(2017)

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Abstract
以巴沙鲶鱼油为原料、高油酸葵花籽油来源的游离脂肪酸为酰基供体,采用Lipozyme RM IM脂肪酶为催化剂催化酸解反应制备富含OPO的人乳替代脂.并采用液质联用对巴沙鲶鱼油、酸解巴沙鲶鱼油、市售BetapolTM的sn-OPO含量进行分析.结果表明,最佳制备条件为:底物摩尔比1∶6,酶用量12%,反应温度60℃,水分含量3.5%(基于酶质量),反应时间3h.在最佳条件下,酸解产物中sn-2棕榈酸分布和sn-1,3油酸含量分别为73.18%和71.11%.酸解产物中sn-OPO含量从23.35%提高到34.28%,高于市售BetapolTM的33.24%.
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