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| | The kinetics of evaporating concentration process for red beet extract liquid was investigated in this paper.The results indicated that loss rate of beet red pigment was in apparent secondary order reaction while the effect of temperature of temperature followed the Arrhenius equation .The kinetics model of evaporating concentration deterioration rate of beet red pigment correlating with solution temperature.relative density and concentration was established.The measured value of beet red pigment absorben... | | 对红甜菜萃取液的蒸发浓缩动力学作了研究。表明甜菜红色素损失速率为表观二级反应,温度的影响遵循Arrhenius方程,建立了甜菜红色素降解速率与料液温度、料液相对密度、抗坏血酸浓度相关联的蒸发浓缩动力学模型。新型异形竖板降膜蒸发器中蒸发浓缩过程中甜菜红色素吸光度实测值与动力学理论模型的吸光度预测值吻合良好,表明动力学模型对预测工业蒸发器浓缩过程中甜菜红色素损失程度具有良好的准确性;可用于指导工业生产。 | | 文摘来源 | |   |
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