Application of triacylglycerol polymer determination in the quality evaluation of vegetable oil

作者：Cao, Honghui; Xue, Bin; Jiang, Yuanrong; Han, Xiaodong^*; Shi, Haiming^*; Cao, Wenming

来源：LEBENSMITTEL-WISSENSCHAFT UND-TECHNOLOGIE-FOOD SCIENCE AND TECHNOLOGY, 2017, 82: 243-247.

DOI：10.1016/j.lwt.2017.04.037

• Triacylglycerol polymer
• Quality evaluation
• Waste cooking oils
• Cold pressed oil
• High-performance size-exclusion chromatography

The stability and low volatility of triacylglycerol polymer (TGP) makes it a reliable index for evaluating the oxidative levels of vegetable oils. The present work established the TGP profiles for 12 different types of vegetable oils commonly observed in the market and 44 waste cooking oil samples by high-performance size-exclusion chromatography (HPSEC) analysis. The TGP contents of vegetable oils ranged from 0.10% to 1.67%, while those of waste cooking oils were between 3.18% and 18.75%. Moreover, the TGP contents were applied for differentiating vegetable and waste cooking oils, and vegetable oils were processed by cold pressed and refined technology. The results from this study demonstrated that TGP quantification had a promising prospect for the quality evaluation of vegetable oils.

• 出版日期2017-9-1
• 单位南京大学; 生命分析化学国家重点实验室