废水处理中可生物降解聚合物基三元共混物的抗菌性能

YMER Digital Pub Date : 2022-07-28 DOI:10.37896/ymer21.07/93
N. Prakash
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引用次数: 0

摘要

可生物降解的三元共混物具有良好的抗菌性能,并已对革兰氏阴性大肠杆菌、铜绿假单胞菌和革兰氏阳性金黄色葡萄球菌进行了抑菌试验。二元共混与三元共混的对比表明,三元共混的缓蚀带效率更高。壳聚糖/尼龙6/粘土分别为(1:1:2)、(2:1:1)和(1:2:1)。壳聚糖/粘土(2:1)二元混合抑制带对大肠杆菌(39 mm)、铜绿假单胞菌(36 mm)、金黄色葡萄球菌(22 mm)的抑制带最大。大多数聚合物共混物对革兰氏阴性菌的抑制活性高于革兰氏阳性菌。壳聚糖聚合物共混物的抗真菌活性是可见的,这种活性对真菌更明显。壳聚糖/尼龙6/粘土(2:1:1)对黑曲霉、白色念珠菌和热带念珠菌的抑制作用最强,其次为壳聚糖/尼龙6/粘土(1:1:1)和(1:1:2)。壳聚糖/粘土(2:1:1)对黑曲霉(36 mm)、白色念珠菌(33 mm)和热带念珠菌(36 mm)的抑制范围较标准两性霉素b高,而壳聚糖/尼龙6/粘土(1:2:1)的抑制范围较低。本研究旨在详细了解可生物降解聚合物基三元共混物的抗菌性能。关键词:壳聚糖;尼龙6;粘土;抗菌活性;抗真菌活性
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Antimicrobial properties of biodegradable polymer based ternary blend for wastewater treatment
Biodegradable based ternary blends has good antimicrobial properties and it has been verified against gram / negative E. coli, Pseudomonas sp. aeruoginosa, and gram-positive Staphylococcus sp. S. aureus bacteria. The comparison of binary and ternary blended reveals that more inhibition zone efficiency is found for ternary blended. Chitosan/nylon 6/clay (1:1:2), (2:1:1) and (1:2:1) respectively were reported. The binary blends inhibition zone chitosan/clay (2:1) recorded the maximum zone of inhibition in comparison with the standard chloramphenicol against E. coli (39 mm), Pseudomonas sp. aeuroginosa (36 mm), followed by S.aureus (22 mm). Most of the polymer blends showed higher inhibitory activity against Gram-negative strains than the Gram-positive bacteria. The antifungal activity of the chitosan polymer blends is seen and this activity is more pronounced against fungi. The inhibition was stronger in the order of chitosan/nylon 6/clay (2:1:1) followed by Chitosan/nylon 6/clay (1:1:1) and (1:1:2) against Aspergillus niger, Candida albicans and candida tropicalis. A higher inhibitory zone was recorded against Aspergillus niger (36 mm), Candida albicans (33 mm), and Candida tropicalis (36 mm) by chitosan/clay (2:1:1) when compared with standard amphoterecin B. Meanwhile Chitosan/nylon 6/clay (1:2:1) showed less activity. The present study is aimed to fetch the knowledge about the antimicrobial properties of biodegradable polymer based ternary blends in detail. Keywords: Chitosan; Nylon 6; Clay; Antimicrobial activity; Antifungal activity
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