Antioxidant and antimicrobial activity of a mangrove plant Avicennia marina(Forsk.)

作     者：Pooja Moteriya Ashish Dalsaniya Sumitra Chanda 

作者机构：PhytochemicalPharmacological and Microbiological LaboratoryDepartment of BiosciencesSaurashtra UniversityRajkot 360005GujaratIndia 

出 版 物：《Journal of Coastal Life Medicine》 (海岸生命医学杂志（英文版）)

年 卷 期：2015年第9期

页      面：713-717页

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070303[理学-有机化学] 0703[理学-化学] 

主　　题：Avicennia marina Mangrove Antioxidant activity Total phenol content Total flavonoid content 

摘      要：Objective:To evaluate the antioxidant and antimicrobial potential of different parts(leaf,stem and pneumatophore)of a mangrove plant Avicennia marina(Forsk.)Vierh(Avicenniaceae).Methods:The extraction was done by cold percolation method using solvents of hexane,ethyl acetate,acetone,methanol and *** phenol and flavonoid content were measured by Folin-Ciocalteu’s reagent and aluminium chloride colorimetric method *** antioxidant activity was evaluated using antioxidant assays of 2,2-diphenyl-1-picrylhydrazyl free radical scavenging activity,superoxide radical scavenging assay,2,2’-azino-bis-(3-ethyl)benzothiazoline-6-sulfonic acid,ferric reducing antioxidant power and reducing capacity *** antibacterial activity was done by agar well diffusion method against four Gram-positive,four Gram-negative bacteria and four ***:Different antioxidant assays showed different levels of activity in different parts and different solvent ***,acetone extract of stem showed the best antioxidant *** Gram-positive bacteria were more susceptible than Gram-negative bacteria and ***:The results indicated extract of Avicennia marina can be used as a promising source of natural antioxidant.