过氧化值
化学
单体
大豆油
动能
甘油三酯
食用油
过氧化物
有机化学
数学
食品科学
生物化学
聚合物
量子力学
物理
胆固醇
作者
Xu Li,Zhisheng Wang,Changming Xing,Zike Chen,Wenxing Sun,Dan Xie,Guangfei Xu,Xingguo Wang
标识
DOI:10.1016/j.foodres.2022.112121
摘要
This work evaluated the feasibility of total polar compound (TPC) and its five components to monitor the deterioration of soybean oil at frying temperatures, and traditional indicators were used as a reference. The preliminary correlation analysis showed that polar compounds accumulated earlier than classical oxidation products like the peroxide value (PV). Equations for two types of characteristic kinetic time, the induction time (turning point of sigmoid curve) and intersection time (intersection point of two tangent lines representing the initiation and propagation reaction), were also derived. Their mathematical difference and relationship were then evaluated. Based on the kinetic analysis, the overall cumulative process of oxidation products of triglycerides (oxTGM) was found to be 2.35%-12.35% earlier than that of fatty acids (PV). Our results supported the index of oxTGM in TPC to be a better indicator to monitor the deterioration of heated edible oil.
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