The production manufacture of juices generates a large amount of waste consisting mainly of fruit peels. The peels are source of molecules such as coumarins and flavonoids. In this study, the peels of Citrus limonia, Citrus deliciosa, Citrus latifolia and Citrus sinensis were the raw material for supercritical fluid extraction. The Box-Behnken design was used to optimize the global yield in function of process variables. The chemical analysis of the extract was carried out by LC-MS and GC-MS. CFD was applied to the mass and momentum conservation equations in the study of supercritical extraction using citrus peels, which allowed the determination of unknown parameters of the bidimensional mathematical model. The flavonoids, nobiletin, sinensetin and tangeretin, as well as the coumarin, citropten, were identified in all species investigated. The maximum global yield obtained were 3.93 % for Citrus limonia, 4.18 % for Citrus deliciosa, 3.48 % for Citrus latifolia and 5.32 % for Citrus sinensis.

中文翻译：

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柑橘皮中香豆素和类黄酮的超临界流体萃取


果汁的生产会产生大量废物，主要由果皮组成。果皮是香豆素和类黄酮等分子的来源。本研究以柑橘柠檬皮、柑橘果皮、柑橘果皮和柑橘果皮为原料进行超临界流体萃取。Box-Behnken 设计用于优化过程变量函数中的全局产量。提取物的化学分析通过 LC-MS 和 GC-MS 进行。在利用柑橘皮进行超临界萃取的研究中，将 CFD 应用于质量和动量守恒方程，从而可以确定二维数学模型的未知参数。在调查的所有物种中都鉴定出类黄酮、川陈皮素、sinensetin 和 tangeretin，以及香豆素、citropten。获得的最大全球产量为 Citrus limonia 的 3.93 %，Citrus deliciosa 的 4.18 %，Citrus latifolia 的 3.48% 和 Citrus sinensis 的 5.32 %。