Risk Factors of Contaminated Coliform Bacteria in Food Stand of Raman, Yala Province South Thailand

Abstract

This research is the study of the factors risk of contamination with coliform bacteria of food sales on street vendors in Raman district, Yala province south Thailand. This research aimed to study the factors relating to the factors risk of contamination with coliform bacteria of food selling on street vendors in Raman district, Yala Province. The samples were 150 food street vendors’ owner, restaurant, or market in Raman district, Yala province. The 450 samples of food, hands, and plates were also detected for coliform bacteria. The research instruments used in the research were examining form and questionnaire. Descriptive statistics included frequency, percentage, mean, chi-square test, and multiple linear regressions.

The results of this research found that most of the samples were female (85.30%) aged between 31-40 years old and 51-60 years old which are equally at 30%. Most of them finished the primary educational level (50%). Most respondents cook themselves (84.00) and they have not passed in food sanitation training (52.70 %).

The criteria for food inspection found that the most passed criteria at 100% were food stalls at least 60 cm. high. The criteria for food selling found that the most passed criteria at 100% were the food additives which must contain food serial number registration. Personal hygienic criteria found the most passed criteria at 100% comprises of 3 aspects which are using equipment to pick up cooked food; avoiding smoking while working on the food; and all cooks must be in a good health, not have a contagious disease, and must have health checkup regularly. The results of the detection of coliform bacteria in food, plate, and cooks’ hands revealed that the most of samples were contaminated at 75.30%

The relationship testing found that the factor on food sanitation training, factors on food selling and the results of detection of coliform bacteria in food were statistically significant at 0.05 (p<0.05). For the risk of contamination with coliform bacteria which can be predicted were food sanitation training factor (β = .310, p < .05) and factors on food selling (β = .340, p < 0.5). When the risk was considered, it found that the samples have not been trained in food sanitation and food selling criteria. There is a risk of contamination of contamination of coliform bacteria (Relative Risk = 1.282, 1.329, respectively).