The aim of this study was to establish a convenient process to get auraptene-enriched blends from Citrus limon L. Osbeck (Rutaceae) peels powder with functional food and nutraceutical potential and antioxidant properties. The process consisted in the selective adsorption of auraptene by bentonite followed by desorption and evaporation of solvents to get the final product. HPLC analyses revealed an adsorption > 99% from lemon fruit peel powder and a 13.7-fold enrichment of the obtained composition respect to the parent food-derived sample. The antioxidant and radical scavenger activities of the Citrus peels based preparation were assayed by the DPPH and ABTS tests and reveal deffects higher than ascorbic acid and Trolox® used as the references. To the best of our knowledge, the findings described herein is the first example reported in the literature of solid phase adsorption experiments carried out on auraptene as a component of edible fruits.

本研究的目的是建立一种方便的工艺，从具有功能性食品、营养保健品潜力和抗氧化特性的柑橘属柠檬L. Osbeck（芸香科）果皮粉末中获取富含橙皮素的混合物。该过程包括通过膨润土选择性吸附橙皮烯，然后解吸和蒸发溶剂以获得最终产品。HPLC 分析显示柠檬果皮粉的吸附率 > 99%，所得组合物相对于母体食物来源样品的富集度为 13.7 倍。柑橘的抗氧化和自由基清除活性基于果皮的制剂通过 DPPH 和 ABTS 测试进行分析，结果显示其效果高于用作参考的抗坏血酸和 Trolox®。据我们所知，本文所述的发现是文献中报道的第一个对作为可食用水果成分的橙皮素进行固相吸附实验的例子。