A Kinetic Approach in the Evaluation of Radical-Scavenging Efficiency of Sinapic Acid and Its Derivatives
作者:Neda Nićiforović、Tomaž Polak、Damjan Makuc、Nataša Poklar Ulrih、Helena Abramovič
DOI:10.3390/molecules22030375
日期:——
A kinetic approach was used to determine the radical scavenging activities of sinapic acid and its derivatives: sinapine, 4-vinylsyringol, syringic acid, syringaldehyde, and ethyl, propyl and butyl sinapate. The responses were expressed as rates of 2,2-diphenyl-1-picrylhydrazyl radical (DPPH˙) scavenging (RS), superoxide radical (O2˙−) scavenging (RFF), and β-carotene bleaching in the emulsion system
动力学方法用于确定芥子酸及其衍生物的自由基清除活性:芥子碱、4-乙烯基丁香醇、丁香酸、丁香醛以及芥子酸乙酯、丙酯和丁酯。响应表示为乳液体系中 2,2-二苯基-1-苦基肼基 (DPPH˙) 清除率 (RS)、超氧自由基 (O2˙−) 清除率 (RFF) 和 β-胡萝卜素漂白率 (RB) . 对于 RS 和 RB,芥子酸酯显示出最高的响应,而对于 RFF,这在丁香酸中可见。选定的化合物清除这些自由基的有效性也在固定终点确定。早期反应参数被证明是评估具有可比固定终点活性的抗氧化剂差异的良好鉴别器。