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粒度、液料比和乙醇体积分数对姜黄素 超声间歇浸取的影响

Keywords: 姜黄素,超声间歇浸取,动力学,粒度,液料比,乙醇体积分数

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Abstract:

以姜黄为原料,在338K,超声功率0.25W·cm-2,超声频率50kHz条件下,研究了姜黄的粒度、液料比、乙醇体积分数对姜黄素超声间歇浸取过程的影响.基于Fick定律,采用分离变量法建立了包含粒度、液料比、乙醇体积分数影响的姜黄素超声间歇浸取动力学方程,模拟结果与实验数据吻合较好.与常规浸取相比,在姜黄素超声间歇浸取中液料比的影响作用降低了6.22%,粒度、乙醇体积分数的影响作用则分别提高29.9%和8.18%.探讨了粒度、液料比和乙醇体积分数影响超声浸取效果的原因,超声的特殊性质使得粒度、液料比和乙醇体积分数对浸取的影响发生变化.为超声强化姜黄素等植物有效成分的浸取提供了理论依据.

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