Antibacterial Activities of Pentaclethra Macrophylla and Syzygium Samarangense against Opportunistic Bacteria Pathogens

International Journal of Advances in Life Science and Technology Pub Date : 2022-06-23 DOI:10.18488/72.v6i1.3033

Oyejide Stephen Oluwanifise, Nwinyi Obinna, Oniha Margaret Ikhiwili, Olugbuyiro Joseph, Taiwo Olugbenga

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Abstract

In this study, Pentaclethra macrophylla and Syzygium samarangense leaves was tested for their antibacterial activities against selected opportunistic bacterial strains. The crude extracts of the plants were extracted using methanol and fractionated into hexane, ethyl acetate and aqueous fractions. The antibacterial activity of the leaves against B. subtilis (ATCC® 6633™), S. aureus (ATCC® 25923™), E. coli (ATCC® 25922™), P. aeruginosa (ATCC® 9027™) was performed using the agar well diffusion technique at 20mg/ml extracts fractions. All plants extracts extract exhibited some antibacterial activity against at least one bacterial strain. P. macrophylla exhibited the highest inhibition against E. coli (25mm) compared to B. subtilis, S. aureus and P. aeruginosa. Similar observation was noted for S. samarangense where the highest inhibition was against E. coli (22mm). In conclusion, P. macrophylla and S. samaragense exhibited antibacterial activities against the selected bacteria. The ethyl acetate and aqueous extracts of both plants had the highest antibacterial activities. This indicates that P. macrophylla and S. samrangense leaves could be a source of antibacterial agent in overcoming antibacterial drug resistance.

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大叶五甲草和撒马兰合欢对条件致病菌的抑菌活性

以大叶五甲草和沙曼合欢叶为材料，研究了其对特定条件菌株的抑菌活性。用甲醇提取植物粗提物，分馏成己烷、乙酸乙酯和水馏分。采用琼脂孔扩散技术，以20mg/ml提取物为浓度，测定叶片对枯草芽孢杆菌(ATCC®6633™)、金黄色葡萄球菌(ATCC®25923™)、大肠杆菌(ATCC®25922™)、铜绿假单胞菌(ATCC®9027™)的抑菌活性。所有植物提取物提取物对至少一种细菌具有一定的抑菌活性。与枯草芽孢杆菌、金黄色葡萄球菌和铜绿假单胞菌相比，大叶假单胞菌对大肠杆菌(25mm)的抑制作用最强。萨马兰氏葡萄球菌对大肠杆菌的抑制作用最高(22mm)。综上所述，大叶假单胞菌和萨马根假单胞菌对所选细菌均有抑菌活性。两种植物的乙酸乙酯和水提物抑菌活性最高。这表明，大叶假葡萄和samrangense叶片可能是克服抗菌药物耐药的抗菌剂来源。

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International Journal of Advances in Life Science and Technology

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