Meléndez-Martínez Antonio J, Benítez Ana, Corell Mireia, Hernanz Dolores, Mapelli-Brahm Paula, Stinco Carla, Coyago-Cruz Elena
Food Colour and Quality Laboratory, Facultad de Farmacia, Universidad de Sevilla, 41012 Sevilla, Spain.
Department Ciencias Agroforestales, Universidad de Sevilla, Escuela Técnica Superior de Ingeniería Agronómica, Carrera de Utrera Km1, 41013 Sevilla, Spain.
Foods. 2021 Oct 29;10(11):2625. doi: 10.3390/foods10112625.
Flowers have been used for centuries in decoration and traditional medicine, and as components of dishes. In this study, carotenoids and phenolics from 125 flowers were determined by liquid chromatography (RRLC and UHPLC). After comparing four different extractants, the carotenoids were extracted with acetone: methanol (2:1), which led to a recovery of 83%. The phenolic compounds were extracted with 0.1% acidified methanol. The petals of the edible flowers and showed the highest values of theoretical vitamin A activity expressed as retinol activity equivalents (RAE), i.e., 19.1 and 4.1 RAE/g fresh weight, respectively. The sample with the highest total phenolic contents was orange (146.7 mg/g dry weight). It was concluded that in most cases, flowers with high carotenoid contents did not contain high phenolic content and vice versa. The results of this study can help to develop innovative concepts and products for the industry.
几个世纪以来，花朵一直被用于装饰、传统医学以及作为菜肴的成分。在本研究中，采用液相色谱法（快速分辨率液相色谱法和超高效液相色谱法）测定了125种花朵中的类胡萝卜素和酚类物质。在比较了四种不同的萃取剂后，用丙酮：甲醇（2:1）萃取类胡萝卜素，回收率为83%。酚类化合物用0.1%的酸化甲醇萃取。可食用花朵的花瓣以视黄醇活性当量（RAE）表示的理论维生素A活性值最高，即分别为19.1和4.1 RAE/克鲜重。总酚含量最高的样品是橙子花（146.7毫克/克干重）。得出的结论是，在大多数情况下，类胡萝卜素含量高的花朵酚类含量不高，反之亦然。本研究结果有助于为该行业开发创新概念和产品。
