摘要
从树莓果实中提取的树莓多糖和硝酸银反应合成多糖纳米银颗粒((PAgNPs),通过紫外-可见光(UV-Vis spectrum)全波段扫描、扫描电镜(SEM)以及X射线衍射(XRD)对其结构进行表征,并做抗氧化活性测试.结果表明,纳米银颗粒在435nm处有最大吸收峰,经电镜检测多糖纳米银颗粒平均直径在20~32nm.同时经抗氧化活性测试,对1,1-二苯基-2-三硝基苯肼(DPPH)和2,2-联氮-二(3-乙基-苯并噻唑-6-磺酸)二铵盐(ABTS)自由基半数清除浓度(IC50)分别为为64.38mg/L和75.86mg/L.
Silver nanoparticles (PAgNPs) were green synthesized using crude polysaccharides from Rubus idaeus.extracts and AgNO 3 solution.The obtained PAgNPs were characterized by UV-Vis absorption spectrum ,scanning electron microscopy (TEM) and X-ray diffraction(XRD).Also,the antioxidant properties of the obtained PAgNPs were assessed in vitro,using the 1,1-diphenyl-2-picrylhydrazyl (DPPH) and 2,2′-azinobis(3-ethylbenzthiazino-6-sulphonic acid)(ABTS) radical cation decolorization test.The result indicates that the obtained PAgNPs regular spheres with an average size of 20~32 nm and a maximum absorbance at 435 nm.Moreover,PAgNPs exhibited a high radical scavenging activity for DPPH and ABTS +,half radical scavenging activities(IC 50) of 64.38mg/L and 75.86mg/L,respectively.
作者
覃引
苟琴
熊音如
张群英
罗家豪
王锴楠
QIN Yin;GOU Qin;XIONG Yinru;ZHANG Qunying;LUO Jiahao;WANG Kainan(School of Pharmaceutical Engineering,Guizhou Institute of Technology,Guiyang 550003,China;College of Life Sciences,Guizhou University,Guiyang 550025,China;Guizhou Institute of Technology for Great Health Pharmaceutical Industry,Guiyang 55002,China;Guizhou Guishanhong Agricultural Development Co. Ltd.,Guiyang 550018,China)
出处
《信阳师范学院学报（自然科学版）》
CAS
北大核心
2019年第3期453-458,共6页
Journal of Xinyang Normal University(Natural Science Edition)
基金
贵州省科技支撑计划(黔科技支撑[2019]2381)
贵州省科技支撑计划(黔科技支撑[2018]2319)
贵州省教育厅创新群体重大研究项目(黔教合KY字[2017]046)
贵州省教育厅青年科技人才成长项目(黔教合KY字[2017]221)
贵州省科技平台(黔科合平台人才[2018]5603)
关键词
树莓
多糖
纳米颗粒
质量表征
抗氧化活性
Rubus idaeus L.
polysaccharide
nanoparticles
characterization
antioxidant activitie
