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Kinetics of microwave assisted extraction of pectin from Balinese orange peel using Pseudo-homogeneous model

机译：使用伪均质模型，来自巴厘岛橙皮果胶的微波辅助提取的动力学

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The objective of this work was to study the homogeneous kinetics of pectin extraction of Balinese orange peel conducted using Microwave Assisted Extraction (MAE). The experimental data showed that the power increases (180 to 600 W), so that the extraction yield of pectin also increases (12.2 to 30.6 % w/w). Moreover, the extraction time is longer (10, 15, and 20 min) the yield of pectin increases (8.8, 20.2, and 40.5). At time after of 20 min (25 and 30 min), the yield starts to decrease (36.6 and 22.9). This phenomena shows pectin degradation. Therefore, pectin extraction is a series reaction, i.e. extraction and degradation. The calculation result showed that pseudo series homogeneous model can quantitatively describe the extraction kinetics. The kinetic constants can be expressed by Arrhenius equation with the frequency factors of 1.58 × 10~5 and 2.29 × 10~5 1/min, while the activation energies are 64,350 and 56,571 J/mole for extraction and degradation, respectively.
机译：这项工作的目的是研究使用微波辅助提取（MAE）进行巴厘岛橙皮果胶提取的均匀动力学。实验数据表明，功率增加（180至600W），因此果胶的提取产率也增加（12.2至30.6％w / w）。此外，提取时间较长（10,15和20分钟）果胶的产率增加（8.8,20.2和40.5）。在20分钟后（25至30分钟）后，产量开始减少（36.6和22.9）。这种现象显示出果胶降解。因此，果胶萃取是串联反应，即提取和降解。计算结果表明，伪系均匀模型可以定量描述提取动力学。动力学常数可以由Arrhenius方程表示，频率因子为1.58×10〜5和2.29×10〜5 1 / min，而活化能量分别为64,350和56,571 j / mol，分别用于提取和降解。

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