Enrichment of caffeic acid in peanut sprouts and evaluation of its in vitro effectiveness against oxidative stress-induced erythrocyte hemolysis
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Author(s)
Detail(s)
Original language | English |
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Pages (from-to) | 332-341 |
Journal / Publication | Food Chemistry |
Volume | 217 |
Online published | 22 Jul 2016 |
Publication status | Published - 15 Feb 2017 |
Externally published | Yes |
Link(s)
Abstract
The profile of caffeic acid in tissues of peanut sprouts and its antioxidant activity in erythrocyte-based assays were investigated. Caffeic acid was found to accumulate in the epicotyl-plumule (reached 2097.13 ± 96 μg/g DW on day 10 after peanut germination). It was purified by semipreparative high-performance liquid chromatography. The purified caffeic acid showed noticeable protective effects on human erythrocytes against 2,2′-azobis-(2-amidinopropane) dihydrochloride (AAPH)-induced hemolysis. It also contributed to maintenance of normal morphological features and inhibited malondialdehyde formation and the lactate dehydrogenase release in erythrocytes under oxidative stress. Further analysis revealed that caffeic acid effectively inhibited AAPH-induced free-radical production and maintained the normal metabolism of the erythrocytic redox system, including superoxide dismutase, glutathione peroxidase, and glutathione. Our work showed that caffeic acid, which is greatly enriched in peanut sprout, can effectively protect erythrocytes from oxidative damage. These results provide valuable information for the use of peanut sprouts as a functional food.
Research Area(s)
- Caffeic acid, Peanut sprout, Erythrocyte, Oxidative hemolysis, Antioxidant
Citation Format(s)
Enrichment of caffeic acid in peanut sprouts and evaluation of its in vitro effectiveness against oxidative stress-induced erythrocyte hemolysis. / Wang, Guang; Lei, Zhuogui; Zhong, Qing et al.
In: Food Chemistry, Vol. 217, 15.02.2017, p. 332-341.
In: Food Chemistry, Vol. 217, 15.02.2017, p. 332-341.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review