河北省部分地区食用植物油中3-氯丙醇酯的污染水平研究
目的 调查河北省部分地区市售食用植物油中3-氯丙醇酯的污染情况。方法 称取0.1 g植物油样品, 用0.5 mol/L甲醇钠溶液将脂肪中的3-氯丙醇酯水解成游离的3-氯丙醇, 用硅藻土小柱净化后, 七氟丁酰基咪唑进行衍生化处理, 气相色谱-质谱联用法检测3-氯丙醇酯含量, 同位素内标法定量。结果 测得市售的 32份植物油样品中, 全部检出含有3-氯丙醇酯, 检出范围0.15~1.32 mg/kg, 3-氯丙醇酯平均值为0.47 mg/kg。 结论 食用植物油中3-氯丙醇酯污染问题必须引起持续关注, 其中菜籽油和花生油污染问题较为突出, 因此有必要加大监测力度, 以获取更多数据, 制定限量标准, 保障食品安全。
Objective To investigate the contamination of 3-monochloro-1, 2-propandiol ester (3-MCPD ester) in edible vegetable oil on sale in some areas of Hebei province. Methods 0.1 g vegetable oil sample was obtained, then 0.25 mol/L sodium methanol solution was used to hydrolyze 3-MCPD ester into free 3-MCPD. After purification with diatomite column and derivatization by fluorobutyl imidazole (HFBI), the content of 3-chloropropanol ester was determined by gas chromatography-mass spectrometry and quantified by isotope internal standard method. Results Among the 32 samples of vegetable oil, 3-MCPD ester was found in all of the samples with a detection range of 0.15?1.32 mg/kg. The average value of 3-MCPD ester was 0.47 mg/kg. Conclusion The pollution of 3-chloropropanol ester in edible vegetable oil must be concerned continuously, especially the pollution of rapeseed oil and peanut oil. Therefore, it is necessary to increase monitoring efforts to obtain more data and set limit standards to ensure food safety.
标题：河北省部分地区食用植物油中3-氯丙醇酯的污染水平研究
英文标题：Pollution of 3-chloro-1, 2-propanediol ester in edible vegetable oils in some areas of Hebei province
作者：
刘印平 河北省疾病预防控制中心
云鹏 河北省疾病预防控制中心
王丽英 河北省疾病预防控制中心
路杨 河北省疾病预防控制中心
董彬 河北省疾病预防控制中心
常凤启 河北省疾病预防控制中心
中文关键词:3-氯丙醇酯,食用植物油,污染,气相色谱-质谱联用法,
英文关键词:3-monochloro-1, 2-propandiol ester,edible vegetable oil,pollution,gas chromatography-mass spectrometry,
发表日期：2019-04-25
- 文件大小:
- 387.03 KB
- 下载次数:
- 60
-
高速下载
|
|
