Antioxidant and antimicrobial activities of Lycium shawii fruits extract

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• 作者：Imen Dahech ; Wafa Farah ; Mohamed Trigui ; Anis Ben Hssouna ; Hafedh Belghith ; Karima Srih Belghith ; Ferjani Ben Abdallah
• 关键词：Lycium shawii ; Phenolic compounds ; Antioxidant activity ; Antimicrobial activity
• 刊名：International Journal of Biological Macromolecules
• 出版年：2013
• 出版时间：September, 2013
• 年：2013
• 卷：60
• 期：Complete
• 页码：328-333
• 全文大小：1288 K

文摘

Crude extracts from the fruit of Lycium shawii, a plant collected from the south of Tunisia, were screened for their in vitro antioxidant, antimicrobial and antifungal activities. The dried fruits were extracted with EtOH and an aqueous suspension of the obtained EtOH extract was partitioned successively with CHCl₃, CH₂Cl₂, EtOAc and n-BuOH, leaving residual water extract. Total phenolic content of extracts from these fruits were also determined. ¦Â-Carotene bleaching assay and Folin-Ciocalteu reagent were used to determine total antioxidant activity and total phenols of fruit extracts. Total phenolic and flavonoid contents varied from 100 to 377 mg GAE/g DW and 3.3-110.6 mg quercetin/g DW, respectively. Several extracts showed high antioxidant capacity and an antimicrobial activity against different strains. This is, to our knowledge, the first report on the detail chemical composition, antioxidant and antimicrobial activities of L. shawii extracts. The results provided evidence that the studied fruit might indeed be potential sources of natural antioxidant and antimicrobial agents.