Microbiological Quality of Local Market Vended Freshly Squeezed Fruit Juices in Dhaka City, Bangladesh

Freshly squeezed or freshly prepared fruit juices sold by local market vendors in Dhaka city were analyzed for the microbiological quality. Total viable bacterial counts, fungal counts, total coliform, faecal coliform and the presence of pathogenic microorganisms such as E. coli, Bacillus cereus, Staphylococcus aureus, Salmonella, Streptococcus were analyzed by standard methods. The total viable count of samples ranged from 3.00×10 2 to 9.60×10 8 and fungal counts ranged from 1.00×10 2 to 8.05×10 4 . Out of 114 freshly prepared fruit juices samples collected 113 samples (99%) showed the presence of coliform and E. coli . The other bacteria like B. cereus, Staphylococcus aureus, Salmonella, Streptococcus were found in 64.91%, 6.14%, 7.89% and (5.26%) of the tested samples. The number and type of microorganisms recovered from the freshly squeezed fruit juices made them unsafe for drinking. It was concluded that due to unhygienic fruit handling in the unsanitary environmental conditions under which the vendors operate the juices become contaminated with harmful bacteria. The results of this study demonstrate the unhygienic quality of popular types of market vended freshly squeezed fruit juices and their risk to the consumers. Key Words: Fruit juices; Microorganisms; Contamination; E. coli; Microbiological quality standards. DOI: 10.3329/bjsir.v44i4.4591 Bangladesh J. Sci. Ind. Res. 44(4) , 421-424, 2009

[1]  T. Nasreen,et al.  Microbial Contamination of Water in Around Dhaka City , 2008 .

[2]  R. Tauxe,et al.  Fresh produce: a growing cause of outbreaks of foodborne illness in the United States, 1973 through 1997. , 2004, Journal of food protection.

[3]  J. Ryu,et al.  Influence of acid tolerance responses on survival, growth, and thermal cross-protection of Escherichia coli O157:H7 in acidified media and fruit juices. , 1998, International journal of food microbiology.

[4]  S. Ingham,et al.  Survival of Escherichia coli O157:H7 in synthetic gastric fluid after cold and acid habituation in apple juice or trypticase soy broth acidified with hydrochloric acid or organic acids. , 1998, Journal of food protection.

[5]  van M. Schothorst Microorganisms in Foods 6: Microbial Ecology of Food Commodities. , 1997 .

[6]  L. Beuchat,et al.  Fate of Salmonella montevideo on and in raw tomatoes as affected by temperature and treatment with chlorine , 1995, Applied and environmental microbiology.

[7]  F. Bryan,et al.  Hazards and Critical Control Points of Street-Vending Operations in a Mountain Resort Town in Pakistan. , 1992, Journal of food protection.

[8]  F. Bryan,et al.  Hazards and Critical Control Points of Vending Operations at a Railway Station and a Bus Station in Pakistan. , 1992, Journal of food protection.

[9]  F. Bryan,et al.  Critical Control Points of Street-Vended Foods in the Dominican Republic. , 1988, Journal of food protection.

[10]  G. J. Banwart,et al.  Basic Food Microbiology , 1979 .

[11]  F. Bryan,et al.  Diseases Transmitted by Foods Contaminated by Wastewater. , 1977, Journal of food protection.

[12]  R. E. Buchanan,et al.  Bergey's Manual of Determinative Bacteriology. , 1975 .

[13]  S. T. Cowan Bergey's Manual of Determinative Bacteriology , 1948, Nature.