目的:探讨楮实子红色素(Fructus B roussonetiaHaem atochrom e,FBH)体外抗氧化作用。方法:采用H2O2和Fe2+系统产生羟基自由基,NADH-PMS-NBT系统产生超氧阴离子自由基,并观察了FBH对羟基自由基及超氧阴离子自由基清除效果以及对H2O2诱...目的:探讨楮实子红色素(Fructus B roussonetiaHaem atochrom e,FBH)体外抗氧化作用。方法:采用H2O2和Fe2+系统产生羟基自由基,NADH-PMS-NBT系统产生超氧阴离子自由基,并观察了FBH对羟基自由基及超氧阴离子自由基清除效果以及对H2O2诱导小鼠红细胞溶血的抑制和对肝组织匀浆自氧化终产物MDA及VC-Fe2+系统引起的线粒体的形态改变的抑制作用。结果:FBH能显著清除超氧阴离子及羟基自由基,抑制H2O2诱导小鼠红细胞溶血和肝匀浆自氧化,对肝线粒体也有保护作用。结论:FBH有较强的体外抗氧化作用。展开更多
The constituents of oil from Broussonetia papyrifera (L.)Vent. fruits were analyzed qualitatively and quantitatively by means of GC-MS-COMPUTER DATABASE system. 27 compounds from the oil were identified. Among them, l...The constituents of oil from Broussonetia papyrifera (L.)Vent. fruits were analyzed qualitatively and quantitatively by means of GC-MS-COMPUTER DATABASE system. 27 compounds from the oil were identified. Among them, linoleic acid,methyl palmitate,oleic acid and linoleic acid ester were major constituents, which relative contents were 63.982%,20.914%,4.263% and 3.505% respectively.And the absolute content of linoleic acid was determined (51.26%) by GC external standard method. Analyzed key physical constants related to its quality standard, the results indicated that relative density, refraction and pH were 0.911 7-0.914 0,1.473 1-1.473 5 and 5.50-5.78 respectively.展开更多
文摘目的:探讨楮实子红色素(Fructus B roussonetiaHaem atochrom e,FBH)体外抗氧化作用。方法:采用H2O2和Fe2+系统产生羟基自由基,NADH-PMS-NBT系统产生超氧阴离子自由基,并观察了FBH对羟基自由基及超氧阴离子自由基清除效果以及对H2O2诱导小鼠红细胞溶血的抑制和对肝组织匀浆自氧化终产物MDA及VC-Fe2+系统引起的线粒体的形态改变的抑制作用。结果:FBH能显著清除超氧阴离子及羟基自由基,抑制H2O2诱导小鼠红细胞溶血和肝匀浆自氧化,对肝线粒体也有保护作用。结论:FBH有较强的体外抗氧化作用。
文摘The constituents of oil from Broussonetia papyrifera (L.)Vent. fruits were analyzed qualitatively and quantitatively by means of GC-MS-COMPUTER DATABASE system. 27 compounds from the oil were identified. Among them, linoleic acid,methyl palmitate,oleic acid and linoleic acid ester were major constituents, which relative contents were 63.982%,20.914%,4.263% and 3.505% respectively.And the absolute content of linoleic acid was determined (51.26%) by GC external standard method. Analyzed key physical constants related to its quality standard, the results indicated that relative density, refraction and pH were 0.911 7-0.914 0,1.473 1-1.473 5 and 5.50-5.78 respectively.