Kreft Samo, Janeš Damjan, Kreft Ivan
Acta Pharm. 2013 Dec;63(4):553-60. doi: 10.2478/acph-2013-0031.
Dried buckwheat herb is used in medicinal products whereas fresh green plant parts, especially sprouts, are consumed as a vegetable. The herb contains fagopyrins, which cause sensitivity to light after ingestion. The aim of this study was to investigate the impact of different growing conditions and the development phase on the content of fagopyrin and phenolic compounds in buckwheat sprouts. Total flavonoid and total phenol contents, fagopyrin content and antioxidant activity were determined spectrophotometrically. Fagopyrin and flavonoids were located almost exclusively in cotyledons. Based on a comparison to hypericin toxicity, the recommendable intake of buckwheat sprouts was estimated to be less than 40 g per day.
干燥的荞麦草用于医药产品，而新鲜的绿色植物部分，特别是芽苗，作为蔬菜食用。这种草含有光敏素，摄入后会导致对光敏感。本研究的目的是调查不同生长条件和发育阶段对荞麦芽中光敏素和酚类化合物含量的影响。通过分光光度法测定总黄酮和总酚含量、光敏素含量及抗氧化活性。光敏素和黄酮类化合物几乎只存在于子叶中。基于与金丝桃素毒性的比较，估计荞麦芽的推荐摄入量为每天少于40克。
