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    Title: In vitro antioxidant properties and total phenolic contents of wetland medicinal plants in Taiwan
    Authors: 鄧正賢;Deng, Jeng-Shyan
    Contributors: 保健營養生技學系
    Keywords: 濕地藥用植物;抗氧化劑;多酚類;黃酮類;黃酮醇類;Antioxidant;Flavonoid;Flavonol;Polyphenol;Wetland medicinal plant
    Date: 2012
    Issue Date: 2012-11-26 10:32:28 (UTC+8)
    Abstract: "The aim of this study was to examine the possible antioxidant activities of the methanol and
    water extracts of 31 medicinal wetland plants in Taiwan. We assayed for such properties such as: TEAC,
    DPPH radical scavenging, total polyphenol content, total flavonoid and total flavonol contents using the reducing power method. Our results showed that Rotala rotundifolia, Juncus effusus var. decipiens, Cyperus iria,
    Salix warburgii, Lindernia antipoda, Kyllinga brevifolia, and Typha orientalis possessed both high antioxidant
    activities and high total polyphenol contents. There was a low correlation between TEAC and total polyphenol
    content (water extracts, R2
    =0.14; methanol extracts, R2
    =0.23) thus eliminating high phenolic content as an important factor in determining the wetland plants’ antioxidant capacities. Our results demonstrated that although
    phytochemicals in the wetland medicinal plants may contribute significantly to their antioxidant activities,
    these antioxidant activities were not directly related to the polyphenol quantity. Phytochemicals may play key
    roles in the potent antioxidant activity of wetland medicinal plants. The potential of these easily accessible
    sources of natural antioxidants should be explored by the pharmaceutical, medical, and health food industries."
    Relation: Botanical Studies; 53(1): 55-66.
    Appears in Collections:[Department of Food Nutrition and Healthy Biotechnology] Journal Article

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