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投稿时间:2014-07-13
投稿时间:2014-07-13
中文摘要: 以桃金娘为原料,通过微波辅助柠檬酸盐缓冲液浸提法探讨桃金娘粗多糖的提取工艺,并研究其抗氧化活性。 结果表明:微波辅助柠檬酸盐缓冲液提取法的最佳提取条件为料液比 1 ∶ 25(g/mL)、功率中火、时间 4 min。与热水提取 法、柠檬酸盐缓冲液提取法相比,微波辅助柠檬酸盐缓冲液提取法明显提高了桃金娘粗多糖的得率,效果较好。桃金娘 粗多糖具有一定的体外抗氧化作用,但弱于 VC。本研究结果可为桃金娘多糖的开发利用提供参考。
Abstract:The extraction process and antioxidant activity of crude polysaccharides from Rhodomyrtus tomen- tosa was studied in this paper. The results showed that the optimal conditions were as follows: ratio of solid to liquid 1 ∶ 25 (g/mL), middle power, extraction time 4 minutes. Compared with hot water extraction and citrate buffer extraction, microwave-assisted citrate buffer extraction was proved better. Crude polysaccharides from Rhodomyrtus tomentosa had some antioxidant activity in viro,but it was poorer than Vc. The results of the paper could provide a scientic basis for the utilization of Rhodomyrtus tomentosa.
文章编号:201607019 中图分类号: 文献标志码:A
基金项目:广西高校特色专业及课程一体化建设项目(GXTSZY274);贺州学院科研项目(2013ZXZK06)
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