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食品研究与开发:2016,37(7):78-80
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桃金娘粗多糖提取及抗氧化活性研究
赵广河1,2,陈振林1,*
(1. 贺州学院 化学与生物工程学院,广西 贺州 542800;2. 华中农业大学 食品科技学院, 湖北 武汉 430070)
Study on Extraction of Crude Polysaccharides and Antioxidant Activity of Rhodomyrtus tomentosa
ZHAO Guang-he1,2, CHEN Zhen-lin1,*
(1. College of Chemical and Biological Engineer, Hezhou University, Hezhou 542800, Guangxi, China; 2. College of Science & Technology, Huazhong Agricultural University,Wuhan 430070, Hubei, China)
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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。
中文关键词: 桃金娘  粗多糖  提取  抗氧化
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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