桂皮酸类壳聚糖接枝物的制备及抗氧化活性

Preparation and anti-oxidant activity of cinnamic acid derivatives-g-CTS

目的:制备桂皮酸类壳聚糖接枝物,考察其抗氧化活性。方法:以邻苯三酚自氧化反应为O.2-源,用Marklund法和微量邻苯三酚-Vit C终止剂法2种方法测定合成物及原药捕获O2.-的能力。结果:合成物的抗氧化活性均高于原药。结论:桂皮酸类壳聚糖接枝物比较适宜作为O2.-的捕获剂。

Objective：To prepare cinnamic acid derivatives-g-CTS and to study its antioxidation activity.Method： The ability of catching oxygen of the products and raw material were determined through two methods,Marklund method and trace pyrogallic acid method,with autoxidation reaction of pyrogallol as the oxygen anion source.Result： The antioxidation activities of all products were better than the raw material.Conclusion： Cinnamic acid derivatives-g-CTS is suitable as the O-·2-capture agent.