| Summary: | 碩士 === 國立海洋大學 === 食品科學系碩士在職專班 === 89 === Abstract
To assay hygienic safety data of food, a total of 226 samples of poultry products（105）, dried fruit products（59）, and other food（62）, were collected from conventional markets（103） and supermarkets （123） at 150 venders in 10 districts of Ilan County. The samples of poultry products included famous food cured duck meats（53）, cured pork （34） and cured hog liver（18）. They were simultaneously analyzed for 10 preservatives by gas chromatography with non-polar DB-1 Megabore column and flame ionization detector. Only three legal preservatives sorbic acid, benzoic acid and dehydroacetic acid were found, whiles other 7 esters of p-hydroxybenzoate was not. The ratio of samples detected to contain sorbic acid, benzoic acid and dehydroacetic acid in the these samples was 53.5 %, 40.7 %, and 0.8 %, respectively . The level of sorbic acid, benzoic acid and dehydroacetic acid in these samples ranged from < 10 to 2,130 ppm（g/kg）, < 10 to 1,500 ppm, and < 10-500 ppm, repectively. Among these samples, one cured pork meat contained sorbic acid more than 2,000 ppm which is the allowable limit, and one cured sour vegetable contained benzoic acid more than 600 ppm which is the allowable limit. Furthermore, four samples（3 sushi, 1 bread） were found to contain food Addition sorbic acid and dehydroacetic acid. Meanwhile, the level of sorbic acid and benzoic acid in samples of conventional market was less than that from supermarkets. Incorrect labeling of these food was more common in conventional markets than that of supermarkets. From these data, preservatives were not misused in these traditional poultry products, dried fruit products and other food in Ilan County, but the labeling problem was noteworthy.
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