Microbiological quality of selected street vended foods during wet and dry season in parts of Port Harcourt metropolis, Rivers State, Nigeria

Oyet, G. I.; Achinewhu, S. C.; Kiin-Kabari, D. B.; Akusu, M. O.

doi:10.31248/rjfsn2020.091

Cited by 4 publications

(4 citation statements)

References 18 publications

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“…The results obtained were generally higher than acceptable limits, and those of S. aureus were also high. Oyet et al (2020) reported from Rivers State using selected street-vended foods as test samples and found a high total Staphylococcal count (TSC) (6.00 to 8.00 log10 CFU/g) in roasted fish in the rainy season.…”

Section: Contamination Of Food Of Animal Origin By S Aureusmentioning

confidence: 99%

“…Proper storage and packaging (Ogofure and Igbinosa (2021) were also seen to reduce the occurrence of isolates in samples. Weather (rainy season) was also shown to have a resultant effect on the cultured isolates (Oyet et al 2020). Furthermore, safe handling of food alongside appropriate food processing practices, ensuring a cold chain, proper cleaning, and disinfecting equipment, limiting cross-contamination, and minimizing food contamination in all aspects of the food chain are necessary preventive measures (Kadariya et al 2014).…”

Section: Factors Influencing S Aureus Contamination Of Food Of Animal...mentioning

confidence: 99%

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Staphylococcus aureus contamination of animal-derived foods in Nigeria: A systematic review, 2002 - 2022

Odetokun

Adetona

Ade-Yusuf

et al. 2023

Preprint

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Background: Staphylococcus aureus (S. aureus) is a bacterium of public health importance. The zoonotic spread of this pathogen through animal-derived foods has been reported. This systematic literature review investigates the prevalence, distribution, antimicrobial resistance (AMR) profiles, and molecular characteristics of S. aureus in the food chain in Nigeria. Methods: A systematic search of online databases (Pub Med, Google Scholar, and Web of Science) for published articles from January 2002 to January 2022 was performed using the Prisma guideline. Results: Fifty articles were included from an initial 511 extracted documents. These papers included research carried out in 22 states across Nigeria. S. aureus detection in most studies was above the satisfactory level for foods (≥ 104CFU/g). The prevalence of S. aureus ranged from 1.3% in raw cow meat to 72.5% in fresh poultry meat. Most S. aureus isolates demonstrated multiple drug resistance patterns, especially being resistant to beta-lactams. There is a lack of information on the molecular typing of the S. aureus isolates. The different spa types of S. aureus isolated were t091, t314, t1476, and t4690, categorized into Multi-Locus-Sequence Types ST8, ST121, ST152, and ST789. Virulence genes detected include pvl, sea, see, spa, coa, edin, tsst, and hly. Certain AMR-encoding genes such as mecA, blaZ, fos, tet, and dfsr were detected. Factors contributing to the presence of S. aureus were reported as poor processing, poor sanitary conditions of the food processing units, inadequate storage units, and poor handling. Conclusion: We showed that S. aureus is a major food contaminant in Nigeria despite the lack of information on the molecular typing of strains from animal-derived food sources. There is a need to control S. aureus by targeting specific entry points based on the findings on risk factors and drivers of food contamination.

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Section: Contamination Of Food Of Animal Origin By S Aureusmentioning

confidence: 99%

Section: Factors Influencing S Aureus Contamination Of Food Of Animal...mentioning

confidence: 99%

Staphylococcus aureus contamination of animal-derived foods in Nigeria: A systematic review, 2002 - 2022

Odetokun

Adetona

Ade-Yusuf

et al. 2023

Preprint

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“…However, despite their economic, social and nutritional advantage, ready-to-eat street vended foods such as Awara and Moin-moin has been found to inflict potential foodborne hazard/disease [3][4][5][6] because the nature of their point of sell (the street) these foods are easily contaminated from different factors including the surrounding air, the water source and the food handlers [6]. Although street food vending is critical to food security in low-income countries [7] such as Nigeria, however there is no standard procedure for determining the risk of microbial, chemical and or toxicological hazard of the foods [8].…”

Section: Introductionmentioning

confidence: 99%

“…Also, from the handling perspective, Most of street food sellers are unhygienic, serving the foods with uncontrolled hand handling using bare hands making them becoming vehicle for microorganisms contamination through their hands, mouth, skin among others because they most at time did not practice proper personal hygiene or correct food preparation, [10,11]. Studies in Nigeria have linked street foods to frequent contamination with hazardous microorganisms, Oyet et al, [6] reported heavy contamination of street foods vended in Porthacourt streets with E. coli, Bacillus spp., Salmonella, S. aureous, and Mould. [5] reported contamination of meat pie, beef sausage roll, egg roll, peeled orange, walnut and apple on Onitsha-Warri with E. coli, Shigella spp.…”

Section: Introductionmentioning

confidence: 99%

Consumers’ safety of some selected ready to eat and street vended foods in Wudil, Kano state as determined by microbial content

Garba

2023

Eureka: LS

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Because of their cost, affordability, availability and simplicity to prepare, ready-to-eat foods are highly consumed in all over Nigeria, therefore critical to Nigerians’ health. This research aimed at ascertaining the consumers’ safety in terms of microbial load in ready-to-eat sell on the street Awara (Steamed Cowpea Beans Slurry) and Moin-moin (Bean pie) sold in three different vending locations retailed to the students of Aliko Dangote University of Science and Technology Wudil, Kano state Nigeria. Total of 24 samples consisting of equal quantity of Awara (Bean pie) and Moin-moin (Steamed Cowpea Bean Slurry) were collected from three different location in Wudil town and analyzed for total aerobic bacteria, fungi and Staphyococcus count. Seven different species of microorganism of health concern were identified to include Micrococcus spp, Staphylococcus aureous, Bacillus spp., Klebsiella spp., Mucor, Rhizophus stoonifer and Aspergillus flavus. The total mean of the aerobic bacteria, fungi and Staphylococcus count across all the location in all the samples were found to be withing the tolerable range with the standard set by the International Commission for Microbial Specification for Foods (ICMSF) and Food and Environmental Hygiene Standard (FEHD) as well as the South Wales Food Authority Standards for ready-to-eat foods. Higher microbial counts were founds on Moin-moin sample and this may be attributed to its high moisture content which is found to range from 64.2 to 70.0 %. The comparison of this research finding with international standard justified the safety of consumers and concludes the acceptability of these foods as safe to eat even though the presence of microorganisms such as Aspergilus spp. has been found to pose serious public health issue such as aflatoxin intoxication

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Staphylococcus aureus contamination of animal-derived foods in Nigeria: a systematic review, 2002—2022

Odetokun,

Adetona,

Ade-Yusuf

et al. 2023

Food saf. and Risk

View full text Add to dashboard Cite

Background Staphylococcus aureus (S. aureus) is a bacterium of public health importance. The zoonotic spread of this pathogen through animal-derived foods has been reported. This systematic literature review investigates the prevalence, distribution, antimicrobial resistance (AMR) profiles, and molecular characteristics of S. aureus in the food chain in Nigeria. Methods A systematic search of online databases (Pub Med, Google Scholar, and Web of Science) for published articles from January 2002 to January 2022 was performed using the Prisma guideline. Results Fifty articles were included from an initial 511 extracted documents. These papers included research carried out in 22 states across Nigeria. S. aureus detection in most studies was above the satisfactory level for foods (≥ 104 CFU/g). The prevalence of S. aureus ranged from 1.3% in raw cow meat to 72.5% in fresh poultry meat. Most S. aureus isolates demonstrated multiple drug resistance patterns, especially being resistant to beta-lactams. There is a lack of information on the molecular typing of the S. aureus isolates. The different spa types of S. aureus isolated were t091, t314, t1476, and t4690, categorized into Multi-Locus-Sequence Types ST8, ST121, ST152, and ST789. Virulence genes detected include pvl, sea, see, spa, coa, edin, tsst, and hly. Certain AMR-encoding genes were detected, such as mecA, blaZ, fos, tet, and dfsr.. Factors contributing to the presence of S. aureus were reported as poor processing, poor sanitary conditions of the food processing units, inadequate storage units, and poor handling. Conclusion We showed that S. aureus is a major food contaminant in Nigeria despite the need for more information on the molecular typing of strains from animal-derived food sources. There is a need to control S. aureus by targeting specific entry points based on the findings on risk factors and drivers of food contamination.

show abstract

Microbiological quality of selected street vended foods during wet and dry season in parts of Port Harcourt metropolis, Rivers State, Nigeria

Cited by 4 publications

References 18 publications

Staphylococcus aureus contamination of animal-derived foods in Nigeria: A systematic review, 2002 - 2022

Staphylococcus aureus contamination of animal-derived foods in Nigeria: A systematic review, 2002 - 2022

Consumers’ safety of some selected ready to eat and street vended foods in Wudil, Kano state as determined by microbial content

Staphylococcus aureus contamination of animal-derived foods in Nigeria: a systematic review, 2002—2022

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