Microbiological quality assessment and proximate analysis of fish and shrimps sold in open markets and grocery stores in Benin city, Nigeria
DOI:
https://doi.org/10.24193/subbbiol.2018.2.06Keywords:
coliform, fish, microbiological safety, proximate analysis, shrimps.Abstract
The aim of this research was to determine the microbiological quality and proximate composition of fish and shrimps sold in open markets and grocery stores in Benin City, Nigeria. Samples of fish and shrimps were analyzed microbiologically using pour plate isolation method. The total bacterial count/coliform count were7.80 ± 0.12 x 105/1.20 ± 0.13 x 105 and 5.44 ± 0.23 x 105/1.50 ± 0.11 x 105 for fish and shrimp samples respectively in the open market whilst for the grocery stores they were:3.61 ± 0.32 x 105/4.15 ± 0.33 x 105and 1.42 ± 0.24 x 105/1.36 ± 0.13 x 105for fish and shrimp samples respectively. The mean fungal count for fish and shrimp samples was highest in open market shrimps (2.11 ± 0.20 x 102) and lowest in grocery stores shrimp (1.33 ± 0.12 x 102). Bacterial species isolated were Pseudomonas aeruginosa, Enterobacter aerogenes, Staphylococcus aureus, Micrococcus luteus and Staphylococcus epidermidis while the fungi isolated were: Aspergillus niger, Penicillium sp and Mucor sp. Proximate analysis showed that the samples were mainly made up of protein, carbohydrate and lipids whilst moisture, fibre and ash were also present in all the samples at varying concentrations. Results revealed no significant difference in the proximate composition of the open market and grocery stores fish and shrimps. From the foregoing, these high sources of nutrients should be added to our daily meal, while proper measures, such as public enlightenment, washing and cooking of the samples with potable water to ensure their microbiological safety are recommended.
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