碩士 / 國立臺灣海洋大學 / 食品科學系 / 107 / This study was conducted according to the Sanitation Standards for Aquatic Animals and the Sanitation Standards for Algal Foods published by the Taiwan Food and Drug Administration (TFDA). We then summarized the production, import volume, and export volume statistical yearbook published by the Fisheries Agency, Council of Agriculture, Executive Yuan and divided aquatic products into seven categories: pelagic fish, inshore fish, other fish, crustaceans, shellfish, cephalopods, and algae. Based on this classification, we compiled a list of representative fresh seafood and processed seafood products. Next, according to the registry of fisheries harbors published by the Fisheries Agency, Council of Agriculture, Executive Yuan, we divided the national administrative region into four regions for aquatic product sampling: North, Central, South, and East. Non-imported aquatic products were sampled from the top three cities based on the production, import and export volume figures in the statistical yearbook. Imported aquatic and processed seafood products were sampled from the cities with the largest populations in each of the four regions. In total we collected 556 raw and cooked fresh seafood or processed seafood product samples. We analyzed the concentrations in these samples of 14 heavy metals: total arsenic (tAs), inorganic arsenic (iAs), cadmium (Cd), cobalt (Co), chromium (Cr), copper (Cu), iron (Fe), indium (In), manganese (Mn), nickel (Ni), lead (Pb), strontium (Sr), thallium (Tl), and zinc (Zn). These heavy metal concentrations in cooked fresh seafood and processed seafood product samples were subjected to a food safety risk assessment. The results showed that the average Cd concentration in raw herring, whitebait, sea scallops, mussels, shell, and octopus exceeded the Sanitation Standards for Contaminants and Toxins in Food published by the TFDA. The highest Cd concentration recorded was 8.20 mg/kg in shell, which exceeded the standard that is 1 mg/kg for shellfish. In general, the non-carcinogenic risk for each exposure group associated with intake of Cd in aquatic products was higher than for all other heavy metals. Taking the 19–64-year-old exposure group as an example, the 90th percentile of non-carcinogenic risk associated with intake of Cd in aquatic products exceeded the United States Environmental Protection Agency's recommended reference dose by 3.27 times, and may cause kidney disease. We also assessed the carcinogenic risk for each exposure group associated with the intake of iAs and Pb in aquatic products, and found that the risk for the human body associated with iAs intake was higher than that associated with Pb intake. In the above example group, the 90th percentile of carcinogenic risk associated with intake of iAs in aquatic products showed that at least one person in every 100,000 may contract skin cancer as a result of long-term consumption. Finally, we provide recommendations for the maximum allowable consumption rate of aquatic products per week for each exposure group, based on the risks associated with iAs consumption. In the above example group, the recommended consumption of pelagic fish, inshore fish, other fish, crustaceans, shellfish, cephalopods, and algae would be no more than 10.2, 30.4, 161.6, 61.7, 59.3, 599.6, and 83.7 g per week, respectively.
| Identifer | oai:union.ndltd.org:TW/107NTOU5253052 |
| Date | January 2019 |
| Creators | Su, Zhi-An, 蘇致安 |
| Contributors | Ling, Min-Pei, 凌明沛 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 145 |
Page generated in 0.0013 seconds