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发明公开
CN109628211A 一种去除油脂中游离脂肪酸的方法 无效 - 驳回

一种去除油脂中游离脂肪酸的方法
摘要：
本发明属于油脂加工领域，公开了一种去除油脂中游离脂肪酸的方法，包括如下步骤：(1)将含有游离脂肪酸的油脂与脂肪酸酰基受体和单甘油酯脂肪酶混合后，在25‑40℃下进行酯化反应；所述油脂中的游离脂肪酸与脂肪酸酰基受体的摩尔比为1:(1.1～7.0)，所述单甘油酯脂肪酶的添加量为10～1000U/g反应底物总质量；(2)分离反应产物，回收油相，即获得去除游离脂肪酸的油脂。本发明利用单甘油酯脂肪酶催化去除油脂的游离脂肪酸，不会引起油脂中的甘油二酯、磷脂等功能性油脂成分的损失，油脂资源利用率高，油脂产品最大程度保留了油脂的原始状态氧化稳定性更高，而且反应产物易分离纯化。
摘要（英）：

The invention belongs to the field of fat processing and discloses a method for removing free fatty acid in fat. The method comprises the following steps that (1) after fat containing free fatty acidis mixed with a fatty acid acyl receptor and monoglyceride lipase, an esterification reaction is conducted at 25-40 DEG C, wherein the mole ratio of free fatty acid in the fat to the fatty acid acyl receptor is 1:(1.1-7.0), and the addition amount of monoglyceride lipase is 10-1,000 U/g of the total mass of a reaction substrate; (2) a reaction product is separated, an oil phase is recycled, and the fat without free fatty acid is obtained. According to the method, free fatty acid in the fat is removed through catalysis of monoglyceride lipase, the loss of functional fat components, such as diglyceride and phospholipid, in the fat cannot be caused, the utilization rate of fat resources is high, the original state of the fat in the fat product is reserved to the great degree, the oxidation stability is higher, and the reaction product is easily separated and purified.

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