关于地沟油极性组分指标的研究
目的 研究地沟油极性组分的共同特性, 为有效检测地沟油提供参考。方法 用石油醚: 乙醚分离地沟油与杂质, 挥干有机溶剂后用柱层分析法进行极性组分指标测定。 结果 所检测到的地沟油的极性组分含量值为23.37 % ±3.33 %(在15.71 % ~32.50 %之间), 而未经烹饪过的正常食用油的极性组分含量值明显较低, 为4.55 % ±1.41 %(在3.05%~6.76%之间)。地沟油和未经烹饪油的层析柱洗脱物的比较也有较明显的差异。 结论 可以用柱层分析法检测区分正常食用油与地沟油。
Objective To study the common characteristics of polar compounds in swill-cooked dirty oil so as to provide efficient references for identification. Methods The samples of swill-cooked dirty oil were separated from impurities by petroleum ether and ether, and their content ratios of polar compounds were determined by column chromatography. Results The content ratios of polar compounds of the swill-cooked dirty oil were 23.37% ± 3.33 % (between 15.71%~32.50%), showing higher than those of uncooked edible oil (4.55% ±1.41 %, between 3.05% ~6.76%). The final elutes showed significant dif-ferences between swill-cooked dirty oil and uncooked oil by column chromatography. Conclusion The swill-cooked dirty oil can be identified from uncooked edible oil by column chromatography.
标题：关于地沟油极性组分指标的研究
英文标题：Research on indicators of polar compounds of swill-cooked dirty oil
作者：
卢志兵 龙岩市产品质量检验所
翁煜彬 龙岩市产品质量检验所
李建军 龙岩市产品质量检验所
陈肇臻 龙岩市产品质量检验所
陈俊卿 福建省亿山农业科技发展有限公司
邱戍梦 龙岩市产品质量检验所
李璇 福建中医药大学
中文关键词:极性组分,非极性组分,柱层分析法,地沟油,
英文关键词:polar compounds,non-polar compound,column chromatography,swill-cooked dirty oil,
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