Molecules 2010, 15(9), 5988-5997; doi:10.3390/molecules15095988
Article

Screening of Natural Antioxidants from Traditional Chinese Medicinal Plants Associated with Treatment of Rheumatic Disease

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Received: 21 April 2010; in revised form: 10 August 2010 / Accepted: 13 August 2010 / Published: 30 August 2010
(This article belongs to the Special Issue Antioxidants)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: In order to find new sources of natural antioxidants, the antioxidant capacities of 50 medicinal plants associated with treatment of rheumatic diseases were systemically 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. Their antioxidant activities of some of these plants were analyzed for the first time. The FRAP and TEAC assay results suggested that the antioxidant compounds in these plants possessed free radicals scavenging activity and oxidant reducing power. A positive linear correlation between antioxidant capacities and total phenolic contents implied that phenolic compounds in these plants could be the main components contributing to the observed activities. The results showed that Geranium wilfordii, Loranthus parasiticus, Polygonum aviculare, Pyrrosia sheaeri, Sinomenium acutum and Tripterygium wilfordii possessed the highest antioxidant capacities and total phenolic content among 50 plants tested, and could be rich potential sources of natural antioxidants.
Keywords: medicinal plant; antioxidant capacity; total phenolic content
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MDPI and ACS Style

Gan, R.-Y.; Kuang, L.; Xu, X.-R.; Zhang, Y.; Xia, E.-Q.; Song, F.-L.; Li, H.-B. Screening of Natural Antioxidants from Traditional Chinese Medicinal Plants Associated with Treatment of Rheumatic Disease. Molecules 2010, 15, 5988-5997.

AMA Style

Gan R-Y, Kuang L, Xu X-R, Zhang Y, Xia E-Q, Song F-L, Li H-B. Screening of Natural Antioxidants from Traditional Chinese Medicinal Plants Associated with Treatment of Rheumatic Disease. Molecules. 2010; 15(9):5988-5997.

Chicago/Turabian Style

Gan, Ren-You; Kuang, Lei; Xu, Xiang-Rong; Zhang, Yuan; Xia, En-Qin; Song, Feng-Lin; Li, Hua-Bin. 2010. "Screening of Natural Antioxidants from Traditional Chinese Medicinal Plants Associated with Treatment of Rheumatic Disease." Molecules 15, no. 9: 5988-5997.

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