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大豆科学  2007 

pH和金属离子对大豆分离蛋白凝胶形成的作用

DOI: 10.3969/j.issn.1000-9841.2007.01.016, PP. 71-74

Keywords: 大豆分离蛋白,pH,金属离子,凝胶时间

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Abstract:

在90℃条件下,研究了大豆分离蛋白浓度、pH值、金属离子、加热时间等因素对大豆分离蛋白凝胶形成的作用。结果显示,酸性条件下大豆分离蛋白形成凝胶的最适pH为3.0,碱性条件下形成凝胶的最适pH为9.0,pH大于11在95℃的水浴锅中加热5min,大豆分离蛋白变为黄棕色粘稠状液体,且有异味;凝胶溶液中CaCl2浓度为0.4%的时,形成凝胶的透明性最高,时间为22min。

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