期刊论文

Microwave - assisted extraction and antioxidant activity in vitro of oil - tea camellia seed polysaccharides

中文

中国油脂

1003-7969

2017

42

4

131-135

10.3969/j.issn.1003-7969.2017.04.029

湖南中医药大学中药技能大学生创新训练中心创新性实验计划项目（201502） 湖南省教育厅科学研究项目（16C1223） 湖南中医药大学校级青年教师科研基金项目（99820001-194）

本校为第一机构

采用微波辅助提取油茶籽粕中的茶籽多糖。在单因素实验的基础上,利用正交实验优化茶籽多糖提取条件。并对茶籽多糖的体外抗氧化活性进行了研究。结果表明,茶籽多糖最佳提取工艺条件为:微波功率800 W,微波时间6.5 min,料液比1:60,提取时间2h,提取温度100℃。在最佳工艺条件下,茶籽多糖得率为(7.61 ±0.5)%。茶籽多糖对羟自由基、DPPH自由基和亚硝酸盐都呈现出一定的清除能力,但清除超氧阴离子自由基能力和还原能力较弱。

The microwave - assisted technology was applied to extract polysaccharides from oil - tea camellia seed meal. According to single factor experiment, the extraction conditions of oil - tea camellia seed polysaccharides were optimized by orthogonal experiment. And the in vitro antioxidant activity of oil- tea camellia seed polysaccharides was studied. The results showed that the optimal extraction conditions of oil - tea camellia seed polysaccharides were obtained as follows ： microwave power 800 W, micro- wave time 6.5 min, ratio of material to...