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标题：Phytochemical Screening and Antioxidant Activity of Moroccan Thymus satureio�des Extracts
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作者：Labiad M.H. ; Harhar H. ; Ghanimi A. 等
期刊名称：Journal of Materials and Environmental Science
印刷版ISSN：2028-2508
出版年度：2017
卷号：8
期号：6
页码：2132-2139
出版社：University of Mohammed Premier Oujda
摘要：Phytochemical screening and antioxidant activities in different solvent extracts of Thymus satureioïdes was carried out. The extracts were subjected to various chemical test for phytochemical constituents, total phenolic contents were evaluated using Folin Ciocalteu method and their antioxidant activity was assayed through «in vitro» radical scavenging activity using DPPH· assay, FRAP and ABTS. The phytochemical screening of this study indicate the presence of steroids, flavonoids, alkaloids, saponnins, and catechic tannins. The average total phenol content of hydroethanolic extracts were significantly (P<0.05) higher when compared with the total polyphenol contents in the hexane, ethyl acetate and dichloromethane extracts. In order of effectiveness (IC50) of the plant extracts the potent inhibitors was hydroethanolic extract, followed by Dichloromethane, ethyl acetate, the least was the hexane extract, for all the methods (DPPH, ABTS and FRAP). This shows that Thymus satureioïdes solvent extracts especially the hydroethanolic extracts may be a potent source of natural antioxidant and its use in the management of diseases associated with oxidative stress is justified.
关键词：Phytochemical; Antioxidant; Thymus satureioïdes; DPPH; ABTS; FRAP