Microbiological investigation and determination of the antimicrobial potential of cow dung samples

S. K. Munshi, J. Roy, R. Noor
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引用次数: 9

Abstract

Cow dung is being used in agriculture as well for the household and religious purposes from the ancient time. Cow dung is known to possess antimicrobial activity and contains a wide variety of microorganisms with variable properties. Therefore, the present study was carried out to assess the microbial diversity including pathogenic ones of the cow dung samples as well as to determine the antimicrobial traits of the samples. In this regard, a total of 8 fresh cow dung samples were tested. All the samples contained a huge load of bacteria and fungi in an average of 108 and 107 cfu/g, respectively. An extended number of pathogenic bacteria were recovered. Among the pathogenic bacteria, Staphylococcus spp. and Bacillus spp. were predominantly found in every sample. The presence of Pseudomonas spp. Escherichia coli, Klebsiella spp. and fecal coliform were exhibited in most of the samples. Salmonella spp. and Vibrio spp. were found in 3 and 5 samples, respectively. The average load of the pathogens was 104 cfu/g. All the samples showed substantial degree of antimicrobial activity against all the pathogens tested. Samples 1, 2, 3 and 4 were effective in inhibiting the growth of all the tested pathogens. The findings of the present study revealed the need for safe application of cow dung in the agricultural field and of further investigation for the antimicrobial potential of the diversified microflora of cow dung offering agricultural, environmental and medical applications. Stamford Journal of Microbiology, Vol.8(1) 2018: 34-37
牛粪样品微生物学调查及抑菌潜力测定
从古代起,牛粪就被用于农业以及家庭和宗教目的。众所周知,牛粪具有抗菌活性,并含有多种具有不同性质的微生物。因此,本研究旨在评估牛粪样品的微生物多样性,包括病原微生物多样性,并确定样品的抗菌特性。为此,共检测了8个新鲜牛粪样本。所有样品均含有大量细菌和真菌,平均含量分别为108和107 cfu/g。大量的致病菌被检出。病原菌中以葡萄球菌和芽孢杆菌为主。大部分样品均检出假单胞菌、大肠埃希菌、克雷伯菌和粪便大肠菌群。在3份和5份样品中分别检出沙门氏菌和弧菌。病原菌平均负荷为104 cfu/g。所有样品对所有检测的病原体都显示出相当程度的抗菌活性。样品1、2、3和4均能有效抑制所有病原菌的生长。本研究的结果表明,有必要在农业领域安全应用牛粪,并进一步研究牛粪中多种微生物群落的抗菌潜力,以提供农业、环境和医疗应用。微生物学报,Vol.8(1) 2018: 34-37
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