Public Health challenges associated with street-vended foods and medicines in a developing country: A mini-review

Obaji, Monday; Oli, Angus Nnamdi; Enweani, Ifeoma Bessie; Udigwe, Ifeoma Bridget; Okoyeh, Jude Nnemeka; Ekejindu, Ifeoma Mercy

doi:10.31254/jmr.2018.4607

Cited by 6 publications

(8 citation statements)

References 23 publications

(31 reference statements)

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“…Most RTE foods (38.6%) were also stored at ambient temperatures. Temperature abuse by exposing food to ambient conditions encourages a wide range of spoilage and pathogenic microorganisms to proliferate causing infections and intoxications when the food is consumed (Obaji et al, 2018;Ouma et al, 2019;Shiningeni et al, 2019). Similar results were reported by Muhonja and Kimathi (2014) in Nakuru county, Kenya while assessing the hygiene and food handling practices among SFVs where cooked foods were stored at ambient temperatures exposed to the environment during sale which posed significant safety concerns.…”

Section: Storage and Preservation Practices Of Ready-to-eat Food By Street Food Vendorsmentioning

confidence: 56%

“…About 25.5% of the vendors indicated that they would consume the leftovers while 22.3% stored the foodstuffs without any form of preservation and sold them the following day. Leftover food can easily be contaminated by especially pathogenic microorganisms when stored under ambient temperatures posing safety concerns to the consumers (Obaji et al, 2018). This is worrying considering the poor handling and storage practices that the foods are exposed to during the day.…”

Section: Storage and Preservation Practices Of Ready-to-eat Food By Street Food Vendorsmentioning

confidence: 99%

“…This underlines the importance of public health officers' oversight on food vending businesses. Continuous surveillance as suggested by Obaji et al (2018) is therefore required as a strategy towards improved street food safety.…”

Section: Enforcement Of Food Safety Regulations Among Street Food Vendorsmentioning

confidence: 99%

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Food safety knowledge and practices of street food vendors in selected locations within Kiambu County, Kenya

Mwove¹,

Imathiu²,

Orina³

et al. 2020

Afr. J. Food Sci.

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The safety of street foods remains a public health concern especially in developing countries like Kenya where foodborne illnesses associated with these foods have often been reported. This study determined the food hygiene and safety knowledge and practices of 345 street food vendors (SFVs) in selected locations within Kiambu County, Kenya. Data collection was accomplished through face-toface interviews using structured questionnaires and extensive observation using an assessment tool for observation of personal hygiene and food handling practices of SFVs and the condition of the vending environment. The results indicated that the majority of the SFVs were male (63.2%) with 38.1% of them having attained secondary school education. About 93% of the SFVs had not received any formal training on food hygiene and safety. Majority of SFVs handled food with bare hands (96.8%) or handled money while serving food without washing hands (86.1%). Few also practiced preservation with 78.3% storing foodstuff that required refrigeration at ambient temperatures while 22.3% stored leftovers without any form of preservation and sold them the following day. Whereas public health officers' visits were found to significantly (P<0.0001) motivate SFVs to obtain a food handler's medical certificate, only about 27% had obtained it. These findings suggest that street vended foods sold in this study area may pose a significant potential hazard to public health due to the poor hygiene and handling practices reported.

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Section: Storage and Preservation Practices Of Ready-to-eat Food By Street Food Vendorsmentioning

confidence: 56%

Section: Storage and Preservation Practices Of Ready-to-eat Food By Street Food Vendorsmentioning

confidence: 99%

See 1 more Smart Citation

Food safety knowledge and practices of street food vendors in selected locations within Kiambu County, Kenya

Mwove¹,

Imathiu²,

Orina³

et al. 2020

Afr. J. Food Sci.

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“…It was clearly observed that most samples packaged with nylon were free of fungal contaminants compared with samples packaged with banana leaves. Earlier studies had reported the presence of microbial contaminants in food products and medicines [17][18][19][20].…”

Section: Discussionmentioning

confidence: 99%

Effects of packaging material on microbial load and safety of ready–to-eat Voandzeia subterranean cake (Okpa)

Igbonekwu¹,

Ihekwereme²,

Oli³

et al. 2022

GSC Adv. Res. Rev.

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Background: Food-borne diseases remain a big challenge to food regulatory agencies. This study evaluated the microbiological safety of Voandzeia subterranean cake also called Bambara groundnut cake (BGC) packaged with cellophane and banana leaves. Methodology: Twelve samples, 6 packaged in cellophane and 6 packaged in banana leaves were randomly selected from 6 strategic locations including, Government House Area (GHA), Eke- Awka market (EAM), UNIZIK junction (UZJ), Aroma junction (ARJ), and Nwagu junction, Agulu (NWJ). Two other samples were prepared fresh at School of Pharmacy, Agulu (SOP) which served as control. All samples were analyzed for total aerobic and fungi counts. Antimicrobial susceptibility evaluation was done on the isolates to determine their antibiogram. Results: Microbial load of V. subterranean cake packaged in cellophane and banana leaves at 24 h post-preparation were <104 CFU.g-1 which is within safe limit of consumption. However, all samples packaged with banana leaves exhibited heavy contaminations with microbes at 48 h (above 105 CFU.g-1). Conversely, there were no growths of fungi in samples packaged with cellophane. The organisms: Micrococcus spp, Escherichia coli, Lactobacillus spp, S. aureus and Salmonella spp were found as contaminant. All the bacterial isolates were resistant to Co-amoxiclav and Cloxacillin. Salmonella spp isolates were resistant to all the antibiotics tested. Only the E. coli isolates had a Multi-Antibiotic Resistance Index (MARI) of less than 30%. Conclusion: The BGC packaged with cellophane are within the acceptable microbiological standard within the first day of production and compared better, microbiologically, than those packaged with banana leaves. However, the isolation of E. coli and Salmonella spp from the products questions the safety of the products and could spread Multi-Antibiotic Resistant isolates. From this study, good sanitary condition is recommended during preparation and packaging processes of V. subterranean cake with banana leaves.

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“…capitata), carrot (Daucus carota), berries, mangos, star apples, onion (Allium cepa), tomatoes (Solanum lycopersicum), lettuce (Lactuca sativa) and green-pepper (Capsicum annuum). Fruits and vegetables are also prone to microbial contamination as they are constantly in contact with the environment (soil, animals droppings used as manure, water and dust, insect bites, etc) and during harvest and post-harvest handlings [6] [7]. Practices such as the use of untreated wastewater for irrigation and unhygienic post-harvest handling of the fruits and vegetables contribute to the contamination process.…”

Section: Introductionmentioning

confidence: 99%

Antimicrobial activity of Tetrapleura tetraptera (Uyayak) extracts, ADMET profiling and molecular docking of its bioactive compounds against dihydropteroate synthase of Escherichia coli

Bebia

Edet²,

Eyo

et al. 2023

Preprint

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Background Escherichia coli like other Enterobactericeae are frequent isolates implicated in food-borne diseases. The prevalence of multi-drug resistant E. coli isolates from street vended fruits and its salad is on the increase across Nigeria. This study was designed to evaluate the antimicrobial activity Tetrapleura tetraptera (Uyayak) against E. coli as well as the druggability and pharmacokinetics of its bioactive compounds using in-silico and in-vitro approaches. Methods We utilized previously reported standard protocols in the isolation, characterization and the identification of the isolates, and the collection and preparation of the T. tetraptera pods. Antimicrobial activity of the extracts was done using the Kirby-Bauer disc diffusion method. Resulting bioactive compounds from gas chromatography coupled to mass spectrophotometry (GC-MS) were converted into canonical stings and used to for target prediction in humans and ADMET properties using the SWISSADME and pkCSM tools. Bioactive compounds that met Lipinski’s rule of five (ROF) were subjected to molecular docking against dihydropteroate synthase of E. coli using the AutoDock vina tool and the resulting interactions visualized in 2-D via Biovia Discovery Studio 21. Results The GC-MS analysis returned a total of twenty-eight (28) bioactive compounds. The abundance of the E. coli isolates varied according to location and fruit types. At trimethoprim and extracts concentrations of < 100mg/ml and < 100% respectively, the isolates showed resistance. A total of 13 bioactive compound showed zero violations to Lipinski’s rule of five (ROF). ADMET analysis of the screened bioactive compounds showed favourable absorption (intestinal and water solubility) and toxicity (AMES and hepatoxicity) profiles than trimethoprim. Molecular docking revealed various amino residues interacting with dihydropteroate synthase and gave docking scores that ranged from − 4.0 to -5.3 kcal/mole for the bioactive compounds and − 6.5 5 kcal/mole for trimethoprim. Target prediction showed that all the bioactive are capable of reaching various targets with nuclear receptor being the most abundant target. Conclusion The bioactive compounds of T. tetraptera examined in this study showed favourable antimicrobial activity against E. coli, docking scores and pharmacokinetics, suggesting the need for further studies to validate their potential as antimetabolites for management of pathogenic E. coli infections.

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Public Health challenges associated with street-vended foods and medicines in a developing country: A mini-review

Cited by 6 publications

References 23 publications

Food safety knowledge and practices of street food vendors in selected locations within Kiambu County, Kenya

Food safety knowledge and practices of street food vendors in selected locations within Kiambu County, Kenya

Effects of packaging material on microbial load and safety of ready–to-eat Voandzeia subterranean cake (Okpa)

Antimicrobial activity of Tetrapleura tetraptera (Uyayak) extracts, ADMET profiling and molecular docking of its bioactive compounds against dihydropteroate synthase of Escherichia coli

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