8种食用植物油碳原子当量42和44甘油 三酸酯含量的测定
目的 了解碳原子当量在食用植物油掺伪中的应用价值。方法 采用气相色谱法和高效液相色谱法分别对8种常见食用植物油的碳原子当量42(ECN42)和44(ECN44)甘油三酸酯含量进行了计算和比较。结果 花生油与菜籽油各指标较接近, 大豆油、玉米油和葵花籽油各指标较接近, 而高品质的橄榄油与山茶油各指标较接近。但橄榄油和山茶油的ECN42和ECN44值远低于高亚油酸的大豆油、玉米油等种籽油类, 且差异具有显著性(P<0.05); 而山茶油与橄榄油之间, 只有实际和理论甘油三酸酯含量最大差值(ΔECN42、ΔECN44)有显著性差异(P<0.001)。结论 本文首次对国内市场中常见食用植物油的ECN42和ECN44甘油三酸酯含量进行检测和总结, 此结果为进一步开展食用植物油掺伪鉴别研究奠定了基础。
Objective To evaluate the Equivalent carbon numbers’ value in adulteration of edible vegetable oils. Methods The values of triacyglycerols with equivalent carbon number 42(ECN42) and 44(ECN44) for 8 edible vegetable oils were calculated and compared by gas chromatography and high performance liquid chromatography. Results Most parameters were similar between peanut and rapeseed oils, soybean, maize and sunflower oils, as well as high quality olive and camellia oils. While for olive and camellia oils, their ECN42 and ECN44 values were significantly lower(P<0.05) than those of high linoleic vegetable seed oils (soybean, corn, etc). But for camellia oils, only ΔECN42 and ΔECN44 were significantly different from olive oils. Conclusion In this paper, we firstly analyzed and summerized the values of triacyglycerols with ECN42 and ECN44 for edible vegetable oils in domestic market. The results will facilitate future adulterate authentication studies for these edible vegetable oils.
标题：8种食用植物油碳原子当量42和44甘油 三酸酯含量的测定
英文标题：Comparison of triacyglycerols with equivalent carbon number 42/44 for 8 edible vegetable oils
作者：
陆慧媛 江苏出入境检验检疫局动植物与食品检测中心
刘静 山东省疾病预防控制中心细菌性传染病防治所
沈伟健 江苏出入境检验检疫局动植物与食品检测中心
王燕舞 上海昂博生物科技有限公司
吴斌 江苏出入境检验检疫局动植物与食品检测中心
张睿 江苏出入境检验检疫局动植物与食品检测中心
赵增运 江苏出入境检验检疫局动植物与食品检测中心
沈崇钰 江苏出入境检验检疫局动植物与食品检测中心
中文关键词:食用植物油,甘油三酸酯组成,碳原子当量,掺伪鉴别,
英文关键词:edible vegetable oil,composition of triacylglycerols,equivalent carbon number,adulterate identification,
发表日期：2014-09-11
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