共轭体系
化学
白藜芦醇
表征(材料科学)
有机化学
纳米技术
生物化学
聚合物
材料科学
作者
Tian Li,Yang Qu,Xiaoning Hu,Manzhu Liang,Qin Guo,Qiang Wang
出处
期刊:Food Chemistry
[Elsevier]
日期:2023-10-01
卷期号:422: 136151-136151
被引量:1
标识
DOI:10.1016/j.foodchem.2023.136151
摘要
To improve the stability and broaden the application of resveratrol (Res), the Res conjugated linoleate (RCL) were synthesized successfully using Res and 9c,11t-conjugated linoleic acid (CLA) with N, N'-carbonyldiimidazole (CDI) as catalyst for the first time. The Res conversion and the yield of RCL were achieved at 96.85% and 65.30%, respectively. In comparison with Res, RCL has lower acid value (1.80 mg/g) and peroxide value (3.25 meq/kg) and higher thermal stability (improved by 115.3 ℃). RCL was identified as a novel triester compound with a physical appearance as a light-yellow viscous oil. The 9c,11t-CLA was activated by CDI first, reacted with Res to form 4'-Res-ester preferentially, followed by 5,4'-Res-ester and 3,5,4'-Res-ester. The transition-state quaternary ring structures of monoesters were the key structures determining the formation of RCL. This study provided an efficient and eco-friendly approach for the synthesis of RCL, promoting the development of the synthesis of Res long-chain fatty acid ester.
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