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Pakistan Journal of Biological Sciences
  Year: 2006 | Volume: 9 | Issue: 5 | Page No.: 868-870
DOI: 10.3923/pjbs.2006.868.870
 
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Contamination of Coliforms in Different Paper Currency Notes of Bangladesh

M. Jakir Hosen, Dilara Islam Sarif , M. Masuder Rahman and Md. Abul Kalam Azad

Abstract:
To determine the degree of contamination of taka notes, samples of the notes circulating in different local markets and people of different professions in Khulna region of Bangladesh were collected. Coliforms, the indicator organisms in taka notes were determined by multiple tube method and identified with differential media and data were analyzed. About 80±5% of old two-taka notes were contaminated with total coliforms and 16±4% of notes were found contaminated with fecal coliforms. But comparatively newer two-taka notes showed that 43±3% were contaminated with total coliforms and 5±2% were with fecal coliforms, suggesting the notion that more handled taka notes were contaminated more intensely even by fecal coliforms. Ten taka notes also represented the same pattern of results as two-taka notes, indicating that taka notes may carry enteric pathogens. This study also revealed that porsaline paper notes were easily vulnerable to coliforms contamination whereas polymer paper notes were almost free from coliforms suggesting that polymer paper notes are safer to use than porsaline paper notes.
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How to cite this article:

M. Jakir Hosen, Dilara Islam Sarif , M. Masuder Rahman and Md. Abul Kalam Azad , 2006. Contamination of Coliforms in Different Paper Currency Notes of Bangladesh. Pakistan Journal of Biological Sciences, 9: 868-870.

DOI: 10.3923/pjbs.2006.868.870

URL: https://scialert.net/abstract/?doi=pjbs.2006.868.870

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