Yanqun Wang, Xianjun Meng, Bin Li, Xiyun Sun, Qi Zhang
{"title":"超声辅助提取对五味子多糖抗氧化活性及分子量分布的影响","authors":"Yanqun Wang, Xianjun Meng, Bin Li, Xiyun Sun, Qi Zhang","doi":"10.1109/BMEI.2011.6098603","DOIUrl":null,"url":null,"abstract":"The molecular weight distribution and antioxidant activity of polysaccharides from Schisandra chinensis (SCP) extracted by hot-water and ultrasonic pretreatment assisted were investigated, including scavenging activities against hydroxyl radical, 1,1-diphenyl-2-picrylhydrazyl (DPPH) and superoxide anion. Obvious differences in molecular weight distribution and antioxidant activity between the hot-water extracts and ultrasonic pretreatment assisted extracts were observed. The SCP with ultrasonic pretreatment was degraded causing an increase of fractions. Both of SCP showed a noticeable scavenging activity against hydroxyl radical and DPPH, and the antioxidant activity of SCP, with ultrasonic pretreatment, was higher. However, superoxide anion scavenging activity of SCP was hardly observed.","PeriodicalId":102860,"journal":{"name":"2011 4th International Conference on Biomedical Engineering and Informatics (BMEI)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2011-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Effect of ultrasonic-assisted extraction on antioxidant activity and molecular weight distribution of polysaccharides from Schisandra Chinensis (Turcz.) baill\",\"authors\":\"Yanqun Wang, Xianjun Meng, Bin Li, Xiyun Sun, Qi Zhang\",\"doi\":\"10.1109/BMEI.2011.6098603\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The molecular weight distribution and antioxidant activity of polysaccharides from Schisandra chinensis (SCP) extracted by hot-water and ultrasonic pretreatment assisted were investigated, including scavenging activities against hydroxyl radical, 1,1-diphenyl-2-picrylhydrazyl (DPPH) and superoxide anion. Obvious differences in molecular weight distribution and antioxidant activity between the hot-water extracts and ultrasonic pretreatment assisted extracts were observed. The SCP with ultrasonic pretreatment was degraded causing an increase of fractions. Both of SCP showed a noticeable scavenging activity against hydroxyl radical and DPPH, and the antioxidant activity of SCP, with ultrasonic pretreatment, was higher. However, superoxide anion scavenging activity of SCP was hardly observed.\",\"PeriodicalId\":102860,\"journal\":{\"name\":\"2011 4th International Conference on Biomedical Engineering and Informatics (BMEI)\",\"volume\":\"42 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2011-12-12\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2011 4th International Conference on Biomedical Engineering and Informatics (BMEI)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/BMEI.2011.6098603\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2011 4th International Conference on Biomedical Engineering and Informatics (BMEI)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/BMEI.2011.6098603","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Effect of ultrasonic-assisted extraction on antioxidant activity and molecular weight distribution of polysaccharides from Schisandra Chinensis (Turcz.) baill
The molecular weight distribution and antioxidant activity of polysaccharides from Schisandra chinensis (SCP) extracted by hot-water and ultrasonic pretreatment assisted were investigated, including scavenging activities against hydroxyl radical, 1,1-diphenyl-2-picrylhydrazyl (DPPH) and superoxide anion. Obvious differences in molecular weight distribution and antioxidant activity between the hot-water extracts and ultrasonic pretreatment assisted extracts were observed. The SCP with ultrasonic pretreatment was degraded causing an increase of fractions. Both of SCP showed a noticeable scavenging activity against hydroxyl radical and DPPH, and the antioxidant activity of SCP, with ultrasonic pretreatment, was higher. However, superoxide anion scavenging activity of SCP was hardly observed.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
