Departamento de Preparatoria Agrícola, Universidad Autónoma Chapingo, Chapingo, México.
Nat Prod Res. 2013;27(9):834-6. doi: 10.1080/14786419.2012.704370. Epub 2012 Jul 16.
Flavonoids and antioxidant activity of extracts of flowers from some Mexican accessions of Crataegus were studied using six accessions with the purpose of contributing to the knowledge of the nutraceutical properties of the accessions of the Germplasm Bank of the Universidad Autonoma Chapingo. Flavonoids were identified by HPLC-MS. Among the flavonoids, the quercetin 3-O-glucoside (3), quercetin 3-O-rhamnoside (4), quercetin 3-O-rhamnosyl-(1 → 6)-glucoside (2) and quercetin 3-O-rhamnosyl-(1 → 2)-[rhamnosyl-(1 → 6)]-glucoside (1) were assigned. Flavonoid content and radical scavenging activity explain some of the medicinal properties attributed to flowers of Mexican hawthorns.
研究了来自墨西哥一些山楂属植物品种的花朵提取物中的类黄酮和抗氧化活性，使用了六个品种，目的是为了解查平戈自治大学种质银行品种的营养特性。采用 HPLC-MS 鉴定了类黄酮。在类黄酮中，鉴定出槲皮素 3-O-葡萄糖苷（3）、槲皮素 3-O-鼠李糖苷（4）、槲皮素 3-O-鼠李糖基-（1→6）-葡萄糖苷（2）和槲皮素 3-O-鼠李糖基-（1→2）-[鼠李糖基-（1→6）]-葡萄糖苷（1）。类黄酮含量和自由基清除活性解释了一些归因于墨西哥山楂属植物花朵的药用特性。
