ABSTRACT The experimental feasibility of extracting carvacrol or cymophenol from local and medicinal Oliveria decumbens by supercritical carbon dioxide through using ultrasound waves was investigated in this study. The extraction modelling was carried out in two forms: Internal and external. The internal model was adopted to simulate the concentration distribution of the phytochemicals in the plant particles. In this model, the extracted cell was assumed to be a filled substrate and two mechanisms of molecular permeability and mass transfer had the greatest effect. The comparison of the experimental data obtained from modelling revealed that both the internal and external models are compatible with the experimental data as much as 80%, indicating an acceptable accuracy. Furthermore, the empirical data is completely in line with the model at the final time (40 min), which is the time to reach the equilibrium.

中文翻译：

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超声波法超临界流体萃取法提取黑橄榄活性成分的数学模型

摘要 本研究探讨了超临界二氧化碳通过超声波从地方和药用橄榄树中提取香芹酚或香芹酚的实验可行性。提取建模以两种形式进行：内部和外部。采用内部模型模拟植物颗粒中植物化学物质的浓度分布。在该模型中，提取的细胞被假定为填充的基质，分子渗透性和传质两种机制的影响最大。对建模得到的实验数据进行对比表明，内外模型与实验数据的兼容性高达80%，精度可以接受。此外，