Microbial risk assessment of ready-to-eat mixed vegetable salads from different restaurants of Bangladesh Agricultural University campus

  • Md Iftekhar Younus Department of Microbiology and Hygiene, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
  • Abdullah Al Momen Sabuj Department of Microbiology and Hygiene, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
  • Zobayda Farzana Haque Department of Microbiology and Hygiene, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
  • Sheikh Mohammad Sayem Department of Agricultural Statistics, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
  • Shankar Majumder Department of Agricultural Statistics, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
  • Mst Sonia Parvin Department of Medicine, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
  • Md Alimul Islam Department of Microbiology and Hygiene, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
  • Sukumar Saha Department of Microbiology and Hygiene, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
Keywords: Restaurants, risk analysis, salad, Monte Carlo simulation, BAU

Abstract

Objective: The study was aimed to analyze the microbiological quality of mixed vegetable sal­ads and to understand the risk related with its consumption from different restaurants around Bangladesh Agricultural University campus in Mymensingh.

Materials and Methods: Sixty (60) samples of mixed vegetable salads were taken from twelve (12) different restaurants in five different time points from each restaurant. In parallel, restaurant workers were asked for handling practices while the consumers were interviewed about their salad consumption pattern and whether they had experienced any health-related problems. Microbial risk assessment of Staphylococcus spp., Salmonella spp., and Escherichia coli was esti­mated by Monte Carlo simulation (10,000 iterations), an exponential model.

Results: Aerobic plate count was ranged from 7.73 ± 0.61 to 9.04 ± 0.26 log cfu/gm, Staphylococcus spp. from 4.64 ± 0.61 to 6.42 ± 0.53 log cfu/gm, Salmonella spp. from 4.75 ± 0.08 to 5.27 ± 0.53 log cfu/gm, and E. coli from 4.98 ± 0.20 to 6.66 ± 0.80 log cfu/gm. From the survey, it was found that total consumers had 18% chances where the male had 13% and the female had 30% chances of being infected with salads. Again frequent, average, and occasional consumers had 31%, 13%, and 0% chances, respectively, of being infected with those salads. From the Monte Carlo simulation, the calculated mean annual risks of Staphylococcus spp., Salmonella spp., and E. coli infection for the three exposure scenarios were found to be about 100%.

Conclusion: The study actually revealed the potential microbial contamination in mixed vegetable salads which may impact on food safety and human health. So, the findings suggest that following hygienic measures during processing and handling the microbiological quality of mixed vegetables salads can be improved.

J. Adv. Vet. Anim. Res., 7(1): 34-41, March 2020

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Abstract
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Published
2020-03-12
How to Cite
Younus, M. I., Sabuj, A., Haque, Z., Mohammad Sayem, S., Majumder, S., Parvin, M. S., Islam, M. A., & Saha, S. (2020). Microbial risk assessment of ready-to-eat mixed vegetable salads from different restaurants of Bangladesh Agricultural University campus. Journal of Advanced Veterinary and Animal Research, 7(1), 34-41. Retrieved from https://www.banglajol.info/index.php/JAVAR/article/view/46361
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Original Articles