Laboratoire des Procédés Industriels, de Synthèse et de l’Environnement, Institut National Polytechnique Houphouët-Boigny (INP-HB) de Yamoussoukro, Côte d'Ivoire
This work studies the consumption by population of Dabakala and Niakara of yam, cassava and groundnut foods. The survey sample of the population was random and was composed of 400 persons (56% women and 44% men) belonging to different ethnic groups. The results of the survey show that 97%, 93%, 96% of the surveyed population consume respectively yam, cassava and groundnut and there is not significant difference according to the cities. Of those, 79 % of the population prefer pounded yam and 57% prefer boiled yam. Cassava is more consumed as attiéké 86% and placali 46%. 83%, 55%, 35% of the population consume respectively groundnut as sauce, roasted with hull and fresh. These foods are consumed regularly by the population in proportions of 265.3 g/day/pers for yam, 197.1 g /day/pers for cassava and 161 g/day/pers for groundnut. This consumption varies according to the sex (pounded yam, boiled groundnut and roasted with hull) and according to age (pounded yam and attiéké).
The study aimed to assess the risk linked to the consumption of beef meat. A total of 108 beef meat samples composed of 54 fresh beef and 54 braised beef « Choukouya » samples were collected in Bouaké and Korhogo. Escherichia coli, Staphylococcus aureus, Clostridium spp. and Salmonella spp. were isolated according to the French standard. The results showed that the bacterial contamination rates ranged from 88 to 100% and 66 to 100% for fresh and braised meat, respectively. In total, 89% braised beef showed microbial loads beyond the limit of acceptability and Salmonella spp. was found in 11.1% of the samples. The probability of ingestion of contaminated braised beef was 0.52. The consumer survey revealed that 12.9% reported daily consumption of braised beef. After braised beef consumption, 16.4% of consumers reported that they contracted a foodborne illness. Symptoms most often mentioned were diarrhea (63.6%) and fever (22.7%). The etiologic fraction and the attributable risk were estimated at 84% and 77%, respectively. In conclusion, Braised beef meat sold in the streets of Bouaké and Korhogo represent a potential risk of poisoning for the consumer. It is therefore recommended that VBB leather well and improves hygienic practices to preserve the consumers’ health.