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Research Journal of Environmental Sciences

Year: 2014 | Volume: 8 | Issue: 2 | Page No.: 101-108
Research Article

Evaluation of Physico-chemical and Antimicrobial Susceptibility Patterns of Microorganisms Isolated from Awetu River, Jimma Town

Shiferaw Demissie
College of Natural Sciences, Jimma University, P.O. Box 378, Jimma, Ethiopia
Anbessa Dabassa
College of Natural Sciences, Jimma University, P.O. Box 378, Jimma, Ethiopia
Water quality is the great public health concern in developing countries and for the study area at large. This study is aimed to evaluate the Physico-chemical and antibiotic resistance activities of some bacterial isolates obtained from Awetu River. In this study, 284 bacterial strains were isolated and evaluated for their antimicrobial resistance patterns. All of the isolates tested were not sensitive to Nor, Chl, Kan, Gen and Tet. Among the bacterial isolates, the most frequent resistance was noted for methicillin (96%), followed by resistance to penicillin (85%). The most frequent resistance among (Stapylonocci and Micrococci isolates was observed for Methicillin and Penicillin and streptomycin (96% each), followed by resistance to kanamycin (84%), gentamicin (55%) and methicillin (30%). A total of 9 Multiple Drug Resistance (MDR) patterns were detected. About 42% of the isolates showed MDR to four drugs, 29% to five drugs and 2% to six drugs. The most frequent MDR pattern was Van/Str/Kan/Gen/Met and was seen in 42% of the isolates. This pattern was seen in Lactobacillus, Pediococcus and Weissella isolates, but was the most frequent pattern in Pediococcus isolates (41%). The results obtained from physico-chemical and antimicrobial susceptibility patterns of the isolate were the health risk for the study area community. The study also found the coliform contamination to be the key problem with drinking water.
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