摘要
采用超声方法提取荸荠皮多酚,通过单因素试验和正交试验确定其最佳提取工艺条件,同时研究了荸荠皮多酚粗提物对亚油酸脂质过氧化体系的抑制作用。结果表明:提取剂为60%的乙醇,pH为3.5,料液比为1∶30(W/V),超声时间为50 min。在此条件下,荸荠皮多酚得率1.8%,且有较强的脂质抗氧化活性。
Ultrasonic method extraction was used to extract the eleocharis tuberosa peel polyphenols. And the suitable extract conditions was obtained by single factor experiments and orthogonal test, then inhibitory action of eleoeharis tuberosa peel polyphenol crude extraction on linoleic acid lipid peroxidation system was studied. The results showed that extractant was 60 % ethanol, pH 3.5, feed liquid ratio was 1 ： 30 （W/V）, ultrasonic time was 50 min, on these conditions, eleoeharis tuberosa peel polyphenols yield was 1.8 %, and have strong lipid antioxidant activity.
出处
《江汉大学学报（自然科学版）》
2012年第6期24-28,共5页
Journal of Jianghan University：Natural Science Edition
基金
武汉市科技计划项目(201150699189-13)
关键词
荸荠皮
超声波法
多酚
脂质抗氧化活性
eleocharis tuberosa peel
ultrasonic method
polyphenols
lipid antioxidant activity
