Capistrán-Carabarin Arelly, Aquino-Bolaños Elia Nora, García-Díaz Yatzil Denih, Chávez-Servia José Luis, Vera-Guzmán Araceli Minerva, Carrillo-Rodríguez José Cruz
Instituto de Ciencias Básicas, Universidad Veracruzana, Xalapa, Veracruz 91194, Mexico.
CIIDIR-Oaxaca, Instituto Politécnico Nacional, Santa Cruz Xoxocotlán, Oaxaca 71230, Mexico.
Foods. 2019 Jul 28;8(8):295. doi: 10.3390/foods8080295.
L. is one of the most consumed and documented legumes in regard to its grain composition, but little is known about L. To evaluate and compare the phenolic compound content and antioxidant activity between landraces of and , a total of 14 accessions of and were collected from farmers in Oaxaca, Mexico. Based on reference standards and spectrophotometry, the polyphenol, flavonoid and anthocyanin contents were quantified, and the antioxidant activity was determined by the 2,2-diphenyl-1-picrylhydrazyl (DPPH) method. The results showed significant differences ( ≤ 0.05) between species and accessions, where and significantly differed in their contents of polyphenols, flavonoids, and anthocyanins, as well as their antioxidant activity in the seed coat and cotyledons. Higher concentrations were found in the seed coat than in the cotyledons for both species. had a higher anthocyanin content in the seed coat and a higher flavonoid content in the cotyledons than , but it did not for the other compounds tested. There was high variability among the accessions that were classified into four phenotypic groups: Two of , one of a mixed group, and one group of
就其籽粒成分而言，L. 是消费最多且记录最多的豆类之一，但人们对L. 了解甚少。为了评估和比较[具体品种1]和[具体品种2]地方品种之间的酚类化合物含量和抗氧化活性，从墨西哥瓦哈卡州的农民那里总共收集了14份[具体品种1]和[具体品种2]的种质。基于参考标准和分光光度法，对多酚、黄酮类化合物和花青素含量进行了定量，并通过2,2 - 二苯基 - 1 - 苦基肼基（DPPH）法测定了抗氧化活性。结果表明，物种和种质之间存在显著差异（P≤0.05），其中[具体品种1]和[具体品种2]在多酚、黄酮类化合物和花青素含量以及种皮和子叶中的抗氧化活性方面存在显著差异。两个物种的种皮中发现的浓度均高于子叶。[具体品种1]种皮中的花青素含量较高，子叶中的黄酮类化合物含量高于[具体品种2]，但在其他测试化合物方面并非如此。在被分为四个表型组的种质中存在高度变异性：[具体品种1]的两个组、一个[具体品种1]和[具体品种2]混合组，以及一个[具体品种2]组
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