刺五加根茎高沸醇木质素的分离及抗氧化活性

以制药生产提取的剌五加根茎剩余物作为原料，采用高沸醇溶剂法提取小质素，探讨了反应温度、反应时间、料液比、乙酸浓度、高沸醇浓度等工艺条件对木质素得率和木质素抗氧化活性的影响，并确定了优化的工艺条件结果表明：各因素对木质素抗氧化性质的影响差异很大，反应温度因素对高沸醇木质素抗氧化性能影响最显著，其次是反应时间因素；在相同木...

Lignin separation and antioxidant capacity from Acanthopanax senticosus remainders using high boiling solvent

Lignin was extracted from the Acanthopanax senticosus remainders, coming from pharmaceutical production process, with high boiling solvent (HBS) (1,4-butanediol) as the extracting reagent. We discussed the effects of reaction temperature, reaction time, solid-liquid ratio, acetic acid concentration and solution concentration of 1,4-butanediol on lignin yield and antioxidant capacity, and determined the optimal process. The results showed that there were significant differences on lignin antioxidant capacity among these factors. The reaction temperature is the most significant factor and the reaction time is the second factor among these factors. At the same lignin solution concentration, the antioxidant capacity of the lignin extracted with HBS is better than that of Kraft lignin, but much lower than that of butylated hydroxyanisole (BHA).