牛乳酪蛋白是引起婴幼儿过敏的重要来源。为分析不同来源的牛乳酪蛋白过敏原性差异,并通过蛋白酶水解实现低水解度下高效消减牛乳酪蛋白过敏的作用,研究了不同来源的酸法酪蛋白、酶法酪蛋白和胶束酪蛋白原料差异以及制备方法对牛乳酪蛋白过敏原性的影响,并分析了蛋白酶水解消减酪蛋白过敏的作用效果。结果表明,不同制备方法获取的酪蛋白过敏原性差异明显,酶法酪蛋白和胶束酪蛋白具有更高的过敏原性。对具有高过敏原性的酶法酪蛋白采用4种单酶水解时,均获得了较低的残留过敏原性,其中菠萝蛋白酶具有最优效果,残留抗原性降低至9%,对应水解度仅为8%。菠萝蛋白酶水解牛乳酪蛋白时更有利于获得低水解度下具有低致敏性的水解产品。
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