Evaluation de la contamination microbiologique des aliments de rue dans la commune rurale de mantasoa

In developing countries including Madagascar, street food often describes an urban area. Actually, many research have been conducted to evaluate the risks of food-borne diseases in such areas. This study aims to investigate the level of contamination of the street food in a rural area regarding the hygienic quality of these food. Particularly it was conducted in the 11 fokontany of the municipality of Mantasoa, a tourist site which is appreciated by both national and international visitors. Many series of surveys were performed between 2019 and 2022 which involved the vendors, the consumers, the responsible of the CSB and the authorities in the Fokotany and the city hall. Then, street food samples were collected for microbiological analysis. 70 vendors were enumerated over the Municipality. It was shown that 71% of the vendors are female and 60% were aged over 40years old. The consumers touched all the age group in which, 10.13 % were under 5 years old. For the people in Mantasoa, ready to eat food are not a subsistence meal, as the main reason of eating such food is snacking (87%) and no disease were checked during these surveys. Among the 34 street-food collected, 100% were contaminated, especially by indicator organisms transferred by the handlers and the weathering microorganisms. This level of contamination confers an unsatisfying quality for these ready-to-eat food. The coffee, which is the most appreciated ready-to-eat food, have an acceptable quality. However, the results showed a high level of contamination of the ready-to-eat food in the municipality of Mantasoa but a low incidence of foodborne diseases were noticed. The complex situation is uncomfortable for those the medical hygiene officers while, consumers in Mantasoa do not see it as a primary problem. This subsequently requires an in-depth study of consumers behaviour.

Key-words: contamination, Mantasoa municipality, street food, rural area, microbiological analysis, hygienic quality

27/10/2022