期刊
CHEMISTRY CENTRAL JOURNAL
卷 6, 期 -, 页码 -出版社
BIOMED CENTRAL LTD
DOI: 10.1186/1752-153X-6-78
关键词
Tartary buckwheat; Common buckwheat; ACE inhibition; Microplate fluometric assay
资金
- Taiwan Grains and Feeds Development Foundation
- National Science Council, Taiwan
Background: Buckwheat flour and buckwheat sprouts possess antioxidant properties, and previous studies have reported on buckwheat flour displaying an inhibitory activity for angiotensin-I converting enzyme (ACE). Information is lacking on the bioactivity of other parts of the buckwheat, such as the seed hulls and plant stalks. This study investigates the ACE inhibitory activity and antioxidant activity of various parts of 2 types of buckwheat, namely, common buckwheat (Fagopyrum esculentum Moench) and tartary buckwheat (Fagopyrum tataricum Gaertn). Results: The extract of common hulls extracted using 50% (v/v)-ethanol solvent presented a remarkable inhibitory activity. The value of IC50 is 30 mu g ml(-1). The extracts of both common and tartary hulls extracted using 50% (v/v)ethanol solvent demonstrated an antioxidant activity that is superior to that of other extracts. Conclusion: This study determined that the ethanolic extract of the hulls of common buckwheat presented more favorable antioxidant and ACE inhibitory abilities. However, the correlation of antioxidant activity and ACE inhibitory activity for all 18 types of extracts is low. The ACE inhibitory activity could have been caused by a synergistic effect of flavonoids or from other unidentified components in the extracts. The ethanolic extract of common hulls demonstrated remarkable ACE inhibitory activity and is worthy of further animal study.
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