Synthesis and characterization of 3,4-dihydroxyphenyl acetic acid esters and study of their efficacy in bulk fish oil
作者:Selva Sudha Arunachalam、Vaisali Chandrasekar、Prasanna D. Belur
DOI:10.1016/j.foodchem.2024.138380
日期:2024.5
increasing their efficacy against oxidative degradation. This study aims to synthesize esters of 3,4-dihydroxyphenylacetic acid (3,4-DHPA) using Amberlyst-15 and to study the application of these esters in refined fish oil. Lipophilic esters were synthesized by esterification and transesterification of 3,4-DHPA in various solvent systems. Esters of methanol, butanol and hexanol were obtained with percent
天然抗氧化剂的亲脂化是一种行之有效的策略,可以增强散装油体系中的溶解度,从而提高其抗氧化降解的功效。本研究旨在使用 Amberlyst-15 合成 3,4-二羟基苯乙酸 (3,4-DHPA) 酯,并研究这些酯在精炼鱼油中的应用。通过3,4-DHPA在各种溶剂体系中的酯化和酯交换合成了亲脂性酯。甲醇、丁醇和己醇的酯的转化率分别为 81.1、69.3 和 78.8,并进行了分子表征和氧化剂测定。 3,4-DHPA 及其甲酯在储存 30 天后,TOTOX 值降低了 36%。研究发现酯中酰基链的长度对其功效和亲脂性有很大影响。这是首次报道 3,4-DHPA 及其亲脂性酯可增强鱼油的氧化稳定性。