期刊名称：Journal of Nutritional Science and Vitaminology
印刷版ISSN：0301-4800
电子版ISSN：1881-7742
出版年度：2011
卷号：57
期号：4
页码：306-310
DOI：10.3177/jnsv.57.306
出版社：Center for Academic Publications Japan
摘要：Water spinach ( Ipomoea aquatica Forsk; I. aquatica ) of the green-stemmed type (green type) is widely consumed, but there also exists a red-stemmed variety (red type). In the present study, the antioxidant capacity of the red type was compared to that of the green type in carbon tetrachloride (CCl4)-treated mice. CCl4-induced thiobarbituric acid reactive substrate (TBARS) formation in the liver was significantly suppressed in mice fed 5% red-type I. aquatica , while the green type showed no effect. Hydrophobic oxygen radical absorbance capacity (H-ORACFL) in the red type showed a lower level than that in the green type; however, lipophilic ORAC (L-ORACFL) and total-ORACFL levels were significantly higher in the red type than in the green type. α-Tocopherol, anthocyanidin/proanthocyanidin, and β-carotene contents were all significantly higher in the red type than in the green type. These results suggest that the wild red-type I. aquatica contains certain lipophilic components that exert antioxidant capacities not only in vitro but also in vivo. Such effective components in the red type would be beneficial phytochemicals for suppressing several diseases related to oxidative stress.
关键词：Red-stemmed type of Ipomoea aquatica Forsk;antioxidant;oxygen radical absorbance capacity (ORAC);thiobarbituric acid reactive substrates (TBARS);tocopherol
