苦荞
芦丁
荞麦属
类黄酮
蓼科
抗氧化剂
化学
栽培
脂质过氧化
植物
食品科学
生物
生物化学
作者
Peiyuan Jiang,Frank J. Burczynski,C. G. Campbell,Grant N. Pierce,J. Alejandro Austria,Colin J. Briggs
标识
DOI:10.1016/j.foodres.2006.10.009
摘要
This study was conducted to investigate the rutin content of three buckwheat species: Fagopyrum esculentum, Fagopyrum tataricum and Fagopyrum homotropicum, and to evaluate their antioxidant capacity. In total, 11 cultivars/accessions were analyzed. The contents of both rutin and total flavonoids were significantly different depending on species, 0.02% and 0.04% in F. esculentum, 0.10% and 0.35% in F. homotropicum, and 1.67% and 2.04% in F. tataricum, respectively. Three buckwheat species exhibited a dose–response effect in inhibiting low-density lipoprotein (LDL) peroxidation. The antioxidant activity decreased in the order: F. tataricum > F. homotropicum > F. esculentum. Linear regression analysis revealed a correlation between antioxidant activity and rutin content (R2 = 0.98) or total flavonoids content (R2 = 0.77) in all buckwheat cultivars/accessions. This work shows that rutin plays an important role in antioxidant activity of buckwheat seed. It provides useful information for buckwheat breeding to develop high rutin content varieties.
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