Samples of buckwheat from four cultivars grown at three locations in western Canada For 4 years were used to study the effect of cultivar, location, and growing season on the flavonoid content and antioxidative activities of the seed. Buckwheat contained an average of 387 and 1314 mg/100 g of flavonoid and 47 and 77 mg/100 g of rutin in the seed and hull, respectively. Location was the main source of variation for flavonoid and rutin contents of the seed, while growing season had significant influence on the flavonoid content of the hulls. Variation in antioxidative activities was mainly due to a cultivar X environment effect. Antioxidative activities expressed as AOX (delta log A470/min), AA (% inhibition relative to control), and ORR (oxidation rate ratio) ranged from 0.42, 114, and 0.16 to 1.63, 48, and 0.59, respectively. Flavonoid content in buckwheat was strongly correlated with rutin content and weakly associated with antioxidative activities, while rutin content was not related to antioxidative activities.
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Journal of agricultural and food chemistry
卷
44
ISSN
0021-8561
页码
v.1746-1750(7)
其它主题
Variete; Composicion quimica; Periodicite
语言
英语
注释
references. AVAILABILITY: US (DNAL 381 J8223).
类型
Journal Article; Journal Part
来源
Journal-of-agricultural-and-food-chemistry (USA). (Jul 1996). v. 44(7) p. 1746-1750.
团体作者
Agriculture and Agri-Food Canada, Morden, Manitoba, Canada.
Rudolf Wild GmbH and Co. KG, Eppelheim-Heidelberg (Germany).
2012-11-15
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