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A Green Extraction Process to Recover Polyphenols from Byproducts of Hemp Oil Processing

机译：从大麻油加工副产物中回收多酚的绿色提取工艺

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The valorization of solid waste hemp ( Cannabis sativa L.) by a non-conventional method is presented in this article. Hemp polyphenols were extracted using aqueous solutions of 2-hydroxypropyl-β-cyclodextrin as an eco-friendly extraction solvent. Cyclodextrins (CD’s) are known to enhance the extraction of polyphenols in water by forming water soluble inclusion complexes. The process was optimized by implementing a response surface methodology (RSM) that took into consideration the following independent variables: CD concentration ( CCD ), solid-to-liquid ratio ( S/L ), and temperature ( T ). The assessment of the extraction model was based on two responses: the total polyphenol yield ( YTP ) and the antiradical activity ( AAR ). The optimum operating conditions were found to be: CD concentration, 32.1% (w/v); solid/solvent ratio, 1/15.2 g/mL; and extraction temperature, 28 °C. Different kinetic models were employed to fit with experimental data and the Peleg’s model was successfully developed for describing the mechanism of extraction under different processing parameters.
机译：本文介绍了通过非常规方法对固体废麻（Cannabis sativa L.）进行的增值。使用2-羟丙基-β-环糊精的水溶液作为环保提取溶剂提取大麻多酚。众所周知，环糊精（CD's）通过形成水溶性的包合物可以增强水中多酚的提取。通过实施响应面方法（RSM）对该过程进行了优化，该方法考虑了以下独立变量：CD浓度（CCD），固液比（S / L）和温度（T）。提取模型的评估基于两个响应：总多酚产量（YTP）和抗自由基活性（AAR）。发现最佳操作条件为：CD浓度为32.1％（w / v）;固体/溶剂比，1 / 15.2 g / mL;萃取温度为28°C。采用了不同的动力学模型来拟合实验数据，并且成功开发了Peleg模型来描述在不同加工参数下的提取机理。

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