Microbial Quality And Antibiogram Of Isolates From Commercial Fruit Juices

ABSTRACT

The microbial quality and antimicrobial susceptibility of bacteria isolated from commercial fruit juices was investigated. The bacteria isolated from the fruit juices were Escherichia coli and Staphylococcus aureus. The total viable count ranged from 4.2x10° to 1.2x10° cfu/ml while the total coliform count ranged from 3.0x10° through 6.6x10° cfu/ml. Antibiogram of this isolates was determined using the disc diffusion method. The antibiotic sensitivity test of the bacterial showed ciprofloxacin and cefuroxine were most effective to Escherichia coli and Ofloxacin was most effective to Staphylococcus aureus. Also Escherichia coli was mildly sensitive to nitrofurontoin and augumentin, while Staphylococcus aureus was mildly sensitive to ceftriaxone and erythromycin. Some of the fruit juices are of poor microbial quality and therefore a corrective measure should be taken before distributing the fruit juices to the consumer market.