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Antioxidant Capacities and Total Phenolic Contents of 56 Wild Fruits from South China

Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China
Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
Key Laboratory of Marine Bio-resources Sustainable Utilization, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
College of Forestry, South China Agricultural University, Guangzhou 510640, China
Liwan District Center for Disease Control and Prevention, Guangzhou 510176, China
Author to whom correspondence should be addressed.
Molecules 2010, 15(12), 8602-8617;
Received: 8 October 2010 / Revised: 17 November 2010 / Accepted: 24 November 2010 / Published: 29 November 2010
(This article belongs to the Special Issue Phenolics and Polyphenolics)
In order to identify wild fruits possessing high nutraceutical potential, the antioxidant activities of 56 wild fruits from South China were systematically evaluated. The fat-soluble components were extracted with tetrahydrofuran, and the water-soluble ones were extracted with a 50:3.7:46.3 (v/v) methanol-acetic acid-water mixture. The antioxidant capacities of the extracts were evaluated using the ferric reducing antioxidant power (FRAP) and Trolox equivalent antioxidant capacity (TEAC) assays, and their total phenolic contents were measured by the Folin-Ciocalteu method. Most of these wild fruits were analyzed for the first time for their antioxidant activities. Generally, these fruits had high antioxidant capacities and total phenolic contents. A significant correlation between the FRAP value and the TEAC value suggested that antioxidant components in these wild fruits were capable of reducing oxidants and scavenging free radicals. A high correlation between antioxidant capacity and total phenolic content indicated that phenolic compounds could be the main contributors to the measured antioxidant activity. The results showed that fruits of Eucalyptus robusta, Eurya nitida, Melastoma sanguineum, Melaleuca leucadendron, Lagerstroemia indica, Caryota mitis, Lagerstroemia speciosa and Gordonia axillaris possessed the highest antioxidant capacities and total phenolic contents among those tested, and could be potential rich sources of natural antioxidants and functional foods. The results obtained are very helpful for the full utilization of these wild fruits. View Full-Text
Keywords: wild fruit; antioxidant capacity; total phenolic content wild fruit; antioxidant capacity; total phenolic content
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MDPI and ACS Style

Fu, L.; Xu, B.-T.; Xu, X.-R.; Qin, X.-S.; Gan, R.-Y.; Li, H.-B. Antioxidant Capacities and Total Phenolic Contents of 56 Wild Fruits from South China. Molecules 2010, 15, 8602-8617.

AMA Style

Fu L, Xu B-T, Xu X-R, Qin X-S, Gan R-Y, Li H-B. Antioxidant Capacities and Total Phenolic Contents of 56 Wild Fruits from South China. Molecules. 2010; 15(12):8602-8617.

Chicago/Turabian Style

Fu, Li, Bo-Tao Xu, Xiang-Rong Xu, Xin-Sheng Qin, Ren-You Gan, and Hua-Bin Li. 2010. "Antioxidant Capacities and Total Phenolic Contents of 56 Wild Fruits from South China" Molecules 15, no. 12: 8602-8617.

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