Microbiological hazard identification and exposure assessment of street food vending in Johannesburg, South Africa

Mosupye, F.M.; Holy, A. von

doi:10.1016/s0168-1605(00)00264-6

Cited by 115 publications

(78 citation statements)

References 12 publications

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“…Furthermore, Vural and Erkan (2008) inTurkey had a range of aerobic count of microorganisms from 2.7×106 to 4.3×107CFU g-1.Similarly for salad vegetables collected from Johannesburg in South Africa, Christisonet al(2008) reported an average aerobic plate count of 1.0×107CFU g-1. In other studies a rangefrom 1.0×102 to 1.0×106CFU g-1 was obtained by different scholars (Angelidiset al, 2006;Ayciceket al, 2006;Kubhekaet al, 2001;Mosupye and von-Holy, 2000). In close agreement with the present result, a study in india (Viswanatha and Kaur, 2001) showed that the total aerobic plate count for cabbage and lettuce was found to be 2.8 ×106 and 1.2 ×108 CFU g-1 respectively.…”

Section: Prevalence Of Intestinal Parasites On Vegetables In Nekemte supporting

confidence: 90%

Intestinal Parasitic and Bacteriological Contamination of Raw Vegetables From Selected Farms and Markets in Nekemte, Ethiopia

Delesa¹

2017

Int. J. Adv. Res. Biol. Sci.

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This study was conducted to assess the extent of intestinal parasitic and bacterial contamination of raw vegetables sold at Nekemte town and collected from selected farms near to Nekemte town. Samples of three different vegetables; cabbages, lettuce and carrots were collected from Nekemte town and selected farms and all samples were examined for intestinal parasites and bacterial contamination, to determine bacterial load and prevalence intestinal parasites. The results show that cabbages were found to be the most heavily contaminated vegetable in both farms and in markets by aerobic bacteria. The highest total coliform count was also recorded from lettuce in all vegetable farms. The highest faecal coliform count was recorded in cabbage sampled from selected farms. The high microbial contamination rates associated with these vegetable samples indicated poor water quality for irrigation employed in the overall production of vegetables in the study area.

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Section: Prevalence Of Intestinal Parasites On Vegetables In Nekemte supporting

confidence: 90%

Intestinal Parasitic and Bacteriological Contamination of Raw Vegetables From Selected Farms and Markets in Nekemte, Ethiopia

Delesa¹

2017

Int. J. Adv. Res. Biol. Sci.

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“…In this study the colony characteristics of Escherichia coli was observed on different culture media and the morphology of this bacteria exhibited small rod shape, single or paired in arrangement that were similar to the findings of Mosupye and Holy (2000). The isolated organism was able to produce metallic sheen on EMB agar and bright pink red colonies on Mac conkey agar which also supported by Buxton and Fraser (1977), Merchant and Packer (1967).…”

Section: Isolation and Identification Of Bacterial Pathogenssupporting

confidence: 80%

Characterization of bacterial pathogens from egg shell, egg yolk, feed and air samples of poultry houses

Parveen

Rahman

Fakhruzzaman

et al. 2017

Asian J. Med. Biol. Res

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This study was selected to find out the bacterial pathogens in egg yolk, egg shell, feed and air samples of poultry houses at Dinajpur district in Bangladesh with isolation, identification and characterization of bacterial pathogens present in those samples. For this study, a total of 147 samples comprising egg shell (36), egg yolk (36), feed (45) and air (30) were collected during the period from January to May, 2012 and the collected samples were then examined for the bacteriological study by using cultural, morphological and biochemical techniques. On the basis of their cultural, morphological and biochemical properties the isolated organisms were identified as Escherichia coli, Staphylococcus spp., Salmonella serovars and Bacillus spp. In this study it was observed that out of 147 samples a total of 51 were identified as bacterial pathogens in which egg shell containing 10 (27.78%), egg yolk 11 (30.56%), feed 20 (44.44%) and air 10 (33.33%) respectively. In this study it was also observed that the highest prevalence of bacterial pathogens in feed samples (44.44%) in comparison with egg shell (27.78%), egg yolk (30.56%) and air samples (33.33%). In this study it was demonstrated that out of four (04) pathogens Escherichia coli was more abundant (39.21%) in the layer house and its environment in comparison with Staphylococcus spp. (25.49%), Salmonella (23.52%) and Bacillus spp. (11.76%) respectively.

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“…Other factors which may lead to the contamination of surfaces include the use of contaminated water and shortcomings in surface sanitation methods, such as an incorrect detergent to water dilution ratio or an inadequate contact time for disinfectants. 7,31 A study by Mosupye and Von Holy 32 , in which they assessed the facilities of street food vendors in Johannesburg, South Africa, indicated high aerobic plate and coliform counts from surface samples collected from a vendor who did not clean the food preparation surface during preparation whereas fewer counts were observed from a vendor who constantly cleaned the surface using a dishcloth. The main source of contamination by yeasts and moulds is the environment, particularly the air.…”

Section: Resultsmentioning

confidence: 99%

Microbial counts of food contact surfaces at schools depending on a feeding scheme

2014

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The prominence of disease transmission between individuals in confined environments is a concern, particularly in the educational environment. With respect to school feeding schemes, food contact surfaces have been shown to be potential vehicles of foodborne pathogens. The aim of this study was to assess the cleanliness of the surfaces that come into contact with food that is provided to children through the National School Nutrition Programme in central South Africa. In each school under study, microbiological samples were collected from the preparation surface and the dominant hand and apron of the food handler. The samples were analysed for total viable counts, coliforms, Escherichia coli, Staphylococcus aureus and yeasts and moulds. The criteria specified in the British Columbia Guide for Environmental Health Officers were used to evaluate the results. Total viable counts were high for all surfaces, with the majority of colonies being too numerous to count (over 100 colonies per plate). Counts of organisms were relatively low, with 20% of the surfaces producing unsatisfactory enumeration of S. aureus and E. coli and 30% unsatisfactory for coliforms. Yeast and mould produced 50% and 60% unsatisfactory counts from preparation surfaces and aprons, respectively. Statistically significant differences could not be established amongst microbial counts of the surfaces, which suggests cross-contamination may have occurred. Contamination may be attributed to foodstuffs and animals in the vicinity of the preparation area rather than to the food handlers, because hands had the lowest counts of enumerated organisms amongst the analysed surfaces. IntroductionThe National School Nutrition Programme (NSNP) is a South African school feeding scheme aimed at alleviating poverty and improving learning capacity of children through school feeding.1,2 The feeding scheme was introduced nationwide in 1994 and is funded through a provisional grant that is transferred to provinces according to the Division of Revenue Act as well as directives from the Department of Basic Education (DBE) and the National Treasury (Grant Framework 2010/11).3,4 The DBE coordinates and oversees the programme, ensuring adherence to policies and relevant legislation through monitoring. The Provincial Education Departments are tasked with the procurement of goods and services for the NSNP while adhering to conditions stipulated by the Grant Framework. 3,4Ntuli 5 explains that schools are funded according to a national system of ranking and funding of schools referred to as a quintile. The DBE ranks schools within quintiles according to this system, taking into account the socio-economic circumstances (such as inequality and poverty) of learners and schools. For example, schools rated at the lowest quintiles (1 and 2) receive more funding than schools ranked higher based on the Norms and Standards for Funding Schools. 5 The schools targeted for the NSNP are primary and secondary schools ranked in quintiles 1 to 3. 3Similarly to other confined environments, th...

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Microbiological hazard identification and exposure assessment of street food vending in Johannesburg, South Africa

Cited by 115 publications

References 12 publications

Intestinal Parasitic and Bacteriological Contamination of Raw Vegetables From Selected Farms and Markets in Nekemte, Ethiopia

Intestinal Parasitic and Bacteriological Contamination of Raw Vegetables From Selected Farms and Markets in Nekemte, Ethiopia

Characterization of bacterial pathogens from egg shell, egg yolk, feed and air samples of poultry houses

Microbial counts of food contact surfaces at schools depending on a feeding scheme

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