Lipase could lead the oil hydrolyzed if the rice bran not passivated in time especially in the high temperature, which in order to increase the acid value of RBO.
但由于米糠中含有解脂酶，如果钝化处理不及时或者米糠保存温度较高，米糠中脂肪酸解过程加速。
The extrusion puffing, on the one hand, can make solution lipase in the rice bran passivated under high temperature and high pressure condition, then prevent the rice bran oil rancidity;
米糠通过挤压膨化，一方面使米糠中的解脂酶在瞬间高温和高压作用下被钝化，防止米糠油的酸败；
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