CHEMICAL AND MICROBIAL SAFETY OF STREET VENDED EGG ROLL IN ABEOKUTA METROPOLIS
A total of 12 samples of egg rolls retailed in three locations in Abeokuta and a laboratory prepared sample serving as control were analyzed for their microbial load and presence of heavy metals (Lead, Cadmium, Chromium). The samples were analyzed for bacteria using standard procedures. Analysis of the food samples showed that total viable bacterial count ranged from 1.2 x 105 to 4.2 x 105 cfu/g, total staphylococcus count ranged between 1.2 x 104 and 6.4 x 104 cfu/g, coliform count ranged from 1.0 x 104 to 3.0 x 104cfu/g, total campylobacter count ranged between 1.0x104 and1.3x104 cfu/g and there were no growths for the total listeria count. Five bacteria genera were isolated including Staphylococcus aureus, Escherichia coli, Klebsiella aerogenes, Salmonella typhi, Campylobacter coli. Cadmium and Chromium contamination ranged from 3.50±0.71 - 12.50±0.71 and 0.75±0.35 - 3.50±0.00 respectively. Statistical analysis of the heavy metals shows a significant difference (p<0.05) between the control and samples. The level of microbial contamination could be associated with inadequate handling and processing by processors and vendors, contamination caused by either poor hygiene or poor quality of water used. Moreover, contamination of cadmium and chromium in all the samples could be incident upon the water used in producing it, however lead was absent in all the samples. It is therefore recommended that health education should be done for food handlers and consumers about food safety.
AOAC, 2012. Food safety and standards authority of India, ministry of health and family welfare. Government of India. New Delhi.
Atolagbe, Y.M. 2010. Quality assessment of "Aadun" (a maize based indigenous snack) from six selected states in Nigeria. M.Sc. Dissertation, Department of Food Science and Technology, University of Agriculture, Abeokuta.
Bibeki, R. 2001. Fundamental Food Microbiology 2nd edition. (The CRC Press Ltd Washington, DC 2001, 56-90.
Food and Agricultural Organization. (FAO). 1997. Agriculture food and Nutrition for Africa. A resource book for teachers of Agriculture, Rome. 12 (3):25-29.
ICMSF, 1974. (International Commission on Microbiological Specification for Food),
Sampling for Microbiological analysis. Principles and specific application, University of Toronto press, Toronto (1974) Pp. 1-18.
M’hir, S. Mejri, M., Hamdi. M. 2007. Microflora distribution and species ratio of Tunisian fermented doughs for bakery industry. Afr. J. Biotechnology. 6: 2122-2129.
Musaiger, A. O., AL-Jedah, J. H., D'Souza, R. 2007. Nutritional Profile of Bakery Products Consumed in Bahrain. Pak. J. Nutr. 6:228-233.
Olutiola, P.O., Famurela, O., Sontag, H.E. 1991. An introduction to General Microbiology, a practical Approach Heideberger Verlagsanstalt andDruckerei GmbH Heldelberg Gmbh, Germany.
Oranusi, S., Onyeike, E., Galadima, M., Umoh, V.J. 2004. Hazard analysis critical control points of foods prepared by families in Zaria, Nigeria. Nig. J. Microbiol. 18(1-2) (2004) 346-362
Oranusi, V.O., Oguoma, I., Agusi, E. 2013. Microbiological quality assessment of foods sold in students cafeterias, Global Research Journal of Microbiology, 3(1), 1-7.
Padhye, N., Doyle, M. 1992. Escherichia coli Q157:H7: epidemiology, pathogenesis, and methods for detection in food. J. Food Protection. 55: 555-565
Taulo, S, Wetlesen, A., Abrahamsen,R. Mkakosya, R., Kululanga, G. 2008. Microbiological quality of water, associated management practices and risk at source, transport and storage points in a rural community of Lungwena, Malawi, Afr. J. Microbiological Research, 7(2), 2008, 131-137.
Thorns, C.J. 2000. Bacterial food-borne zoonoses. Rev Sci Tech. 19: 39-226.
Zaidi, M.I, Asrar, A, Mansoor, A, Farooqui, M.A. 2005. The heavy metal concentrations along roadsides trees of Quetta and its effects on public health. J. Appl. Sci. 5(4): 708-711.
Zhang, S. J, Iandolo., Stewart, C. 1998. The enterotoxin D plasmid of Staphylococcus aureus encodes a second enterotoxin determinant (sej). FEMS Microbiology. Lett. 168:227–233.