| 研究生: |
許甯琁 Hsu, Ning-Syuan |
|---|---|
| 論文名稱: |
台灣地區市售加工食品中單氯丙二醇(酯)及縮水甘油酯之含量監測及國人暴露風險評估 Monitoring of Monochloropropanediol (esters) and Glycidyl esters in selected processed foods and dietary intake risk assessment |
| 指導教授: |
李俊璋
Lee, Ching-Chang |
| 學位類別: |
碩士 Master |
| 系所名稱: |
醫學院 - 食品安全衛生暨風險管理研究所 Department of Food Safety / Hygiene and Risk Management |
| 論文出版年: | 2021 |
| 畢業學年度: | 109 |
| 語文別: | 中文 |
| 論文頁數: | 259 |
| 中文關鍵詞: | 單氯丙二醇酯 、縮水甘油酯 、液相層析質譜儀 、加工食品 、健康風險評估 |
| 外文關鍵詞: | Monochoro-1,2-propanediol esters, Glycidyl esters, HPLC-MS/MS, Processed food, Health risk assessment |
| 相關次數: | 點閱:237 下載:1 |
| 分享至: |
| 查詢本校圖書館目錄 查詢臺灣博碩士論文知識加值系統 勘誤回報 |
2-及3-單氯丙二醇酯 (2-/3-Monochoro-1,2-propanediol esters, 2-/3-MCPDEs)及縮水甘油酯 (Glycidyl esters, GEs)為近年來食品中新興污染物,主要經由植物油精製程序之高溫脫臭步驟中產生,常見於精製植物油及相關加工製品。單氯丙二醇 (Monochoro-1,2-propanediol, MCPD)於食物中發現較早,主要於化學醬油製造過程中產生,廣泛存在於醬油以及含醬油之加工食品中。MCPDEs/GEs攝入體內後會轉變為毒性較高之游離態單氯丙二醇及縮水甘油 (Glycidol),國際癌症研究署分別將之歸類為Group 2B (人類可能致癌物)及Group 2A (人類極有可能致癌物)。然而,至今我國尚未針對加工食品中MCPDE/GE含量進行全面檢測,僅比照歐盟將於2021年7月開始實施嬰幼兒配方奶粉中GEs的管制限量,其他食品則尚未訂定規範。因此,本研究之目的為調查國內市售加工食品中MCPDEs及GEs污染情形及評估國人飲食暴露健康風險,並且探討食品原料及加工製程差異,對於加工食品中MCPDEs/GEs濃度的影響。加工食品種類分配及採樣運用系統性抽樣方式,共採集12大類280件市售加工食品,以高效能液相層析串聯式質譜儀進行24種MCPDEs及7種GEs之分析。另採集28件市售調味品,以食藥署之公告方法氣相層析質譜儀進行游離態3-MCPD含量分析,以瞭解其濃度分布情形。最後使用國家攝食資料庫資料,結合蒙地卡羅進行不確定性分析,評估國人飲食暴露風險。此外,亦利用SPSS統計軟體探討不同製程、脂肪含量及鹽含量,對加工食品中MCPDEs及GEs含量貢獻度之影響。
280件樣本中24種2-/3-MCPDEs及7種GEs檢出率分別介於1-73%及4-67%之間;幾何平均濃度以Pa-Ol (281 μg/kg)及Ol-GE (224 μg/kg)最高。各類食品2-/3-MCPDEs及GEs平均濃度以油脂類最高 (114-925 μg/kg),糖果零食類 (85.1-220 μg/kg)及複合食品 (57.4-204 μg/kg)次之。28件調味品中3-MCPD檢出率為21.4%,各類調味品濃度範圍為ND-55.4 μg/kg,皆遠低於台灣衛福部食藥署公告之「醬油及以醬油為主調製而成之調味製品」限量標準。解析分析數據顯示,精製植物油中2-/3-MCPDEs及GEs平均濃度顯著高於非精製油品(P<0.02),且以棕櫚油濃度最高。糖果零食類及複合食品中大多數樣本成分含有棕櫚油,且組成分析結果顯示兩類食品與棕櫚油各化合物濃度呈顯著高度正相關 (R2=0.930-0.992, P<0.001)。在影響因子探討中,本研究調查之加工食品,其脂含量、鹽含量及加工製程中油炸烘烤與否,皆可能影響加工食品中2-/3-MCPDEs及GEs濃度,各組別2-/3-MCPDEs及GEs平均濃度皆呈顯著上升趨勢 (β=10.2-39.0, Ptrend<0.001),其中又以脂肪含量對於濃度影響較大,高脂組別皆與低脂組別達顯著差異 (p<0.001)。國人經飲食暴露2-/3-MCPDEs及GEs之第95百分位數暴露劑量推估結果,均以0-3歲嬰幼兒為最高,全榖雜糧類 (22.4%)、複合食品 (21.9%)及嬰幼兒食品 (17.8%)為主要貢獻來源。暴露2-/3-MCPDEs之危害指標 (HI)分別以兩個情境計算,情境1為攝入3-MCPDEs之第95百分位暴露風險,各年齡層HI除65歲以上女性,其餘介於1.13-4.31;情境2由於2-MCPD毒理資料不足,保守將2-MCPDs毒性視為與3-MCPD相同,即同時攝入2-/3-MCPDEs之第95百分位暴露風險,各年齡層HI介於1.19-5.34 之間,HI均大於1,代表長期攝入2-/3-MCPDEs可能對健康產生危害。GEs則利用暴露限值 (MOE)進行風險特徵描述,使用EFSA及JECFA之參考劑量進行計算,攝入GEs之第95百分位數MOE分別介於2,712-13,619及638-3,205之間,各年齡層皆低於EFSA及JECFA的建議值 25,000及 10,000,代表長期攝入GEs可能具有致癌風險。以本研究所得之食品中2-/3-MCPDEs及GEs濃度、各年齡層各類食物國人攝食量及體重資料 (國家攝食資料庫提供)、攝入體內之吸收分率及消化道水解率為100%,且將2-MCPD毒性視為3-MCPD保守估計之情境下,2-/3-MCPDEs之第95百分位數整合危害風險各年齡層皆高於參考限值;GEs之暴露限值亦皆低於建議值,代表為不可接受風險。建議政府應盡速訂定企業指引並協助業者進行製程改善,並參考歐盟現行標準先針對油品及嬰幼兒奶粉或食品進行限量管制。此外,建議政府針對油品、嬰幼兒食品、全穀雜糧類、豆類加工製品、糖果零食類及複合食品等六類高風險食品,持續進行MCPDE/GE含量監測及管理,以維護食品安全保障國民健康。
The objectives of the present study are to investigate the contamination profiles of MCPDE/GE in processed food and conduct a dietary intake risk assessment for Taiwanese. Additionally, to explore the relative contribution of MCPDE/GE in different raw materials and processes methods. 24 kinds of MCPDEs and 7 kinds of GEs in 280 processed foods were analyzed with HPLC-MS/MS. Moreover, 3-MCPD in 28 condiment samples were analyzed with GC/MS. The highest level of 2-/3-MCPDEs and GEs (expressed as equivalent level) were found in edible oil (114-925 μg/kg), followed by snacks (85.1-220 μg/kg) and composite food (57.4-204 μg/kg). The concentration of free 3-MCPD in condiment (ND-55.4 μg/kg) was far lower than esters form. The trend analysis indicated group which food manufacturing process with baking/frying and high fat/salt content, 2-/3-MCPDEs and GEs level significantly increased (β=10.2-39.0, Ptrend<0.001). For the general population, the P95 ADDs for 2-/3-MCPDEs, and GEs was ranged from 0.55-2.36 μg/kg/day, 1.92-8.61 μg/kg/day, and 0.75-3.76 μg/kg/day, respectively. The highest P95 ADDs of 2-/3-MCPDEs and GEs were found in 0-3 years old child and the major contribution from whole grains (22.4-24.5%), composite food (20.2-22.2%), and infant food (12.3-18.4%). In the conservative scenario, the P95 HI of 2-/3-MCPDEs in all groups were ranged from 1.19-5.34, higher than 1 indicated the dietary intake health risk of 2-/3-MCPDEs is unacceptable risk. The P95 MOE of GEs in all groups were ranged from 2,712-13,619 (calculated by T25) and 638-3,205 (calculated by BMDL10), lower than the recommended value of EFSA and JECFA also indicated dietary intake health risk of GEs is unacceptable risk. We recommended TFDA needs to strengthen the management strategies, and the industry should also improve the production process to reduce the residue of MCPDE/GE in food.
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