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首页> 外文期刊>Journal of Pure & Applied Microbiology >Antimicrobial Activity of Mangrove Plant Acrostichum speciosum
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Antimicrobial Activity of Mangrove Plant Acrostichum speciosum

机译：红树林植物acrostichum speciosum的抗微生物活性

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The antimicrobial activity of leaves, stem and root of Acrostichumspeciosumwas evaluatedusing different polarity extraction solvents namely n-hexane, ethyl-acetate and methanol. The samples were tested by disc diffusion and microdilution method against sixmicroorganisms after the extraction process for their antimicrobial activity. All extracts tested in disc diffusion test showed no antimicrobial activity. The exception of this is the moderate antibacterial activity of the ethyl-acetate root extracts against the Gram-positive strains (Bacillus cereus) and the Gram-negative bacterium Escherichia coli. Ethyl-acetate root extracts appeared to have bacteriostatic and bactericidal action against B. cereus at the concentration equal to 0.04 mg/mL (MIC=MBC) while it has bacteriostatic action against E. coli at the concentration equal to 0.012 mg/mL.The inhibition of microbial growth at concentration as low as 0.04 mg/mL indicated the potent antimicrobial activity of ethyl-acetate root extracts of A. speciosum.
机译：acrostichumspeciosumwas叶片，茎和根系的抗微生物活性评估不同极性提取溶剂即N-己烷，乙酸乙酯和甲醇。在萃取过程中，通过盘扩散和微稀释方法通过盘扩散和微稀释方法测试样品，以进行抗微生物活性。在盘扩散试验中测试的所有提取物都没有显示抗微生物活性。除此之外是乙酰乙酸乙酯根提取物对革兰氏阳性菌株（芽孢杆菌）和革兰氏阴性细菌大肠杆菌的适度抗菌活性。乙酸乙酯根萃取物似乎对B.培养物的抑菌和杀菌作用浓度等于0.04mg / ml（MIC = MBC），而在浓度等于0.012mg / ml的浓度下对大肠杆菌具有抑菌作用。抑制浓度低至0.04mg / mL的微生物生长表明A.Cenciosum的乙基乙酸乙酸根提取物的有效抗微生物活性。

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