日用化学工业2011，Vol.41Issue(3)：204-207,4.
白藜芦醇的光稳定性和热稳定性研究
Study of photo - stability and thermo - stability of resveratrol
史先敏 1严泽民 2谢静红 2周华锋 2何宏轩 2段明星3
作者信息
- 1. 清华大学生命科学学院生物膜与膜生物工程国家重点实验室,北京100084
- 2. 江苏隆力奇生物科技股份有限公司研发中心,江苏常熟215555
- 3. 中国科学院动物研究所,北京100101
- 折叠
摘要
Abstract
The photo - stability and thermo - stability of resveratrol were investigated using ultraviolet - visible spectrophotometry and high performance liquid chromatography. Meanwhile the activities for scavenging 1,1-dipheny - 2 - picryhydrazyl free radical ( DPPH · ) and inhibiting rate to mushroom tyrosinase of the resveratrol after being treated by sun exposure and heating in water were also studied. The results indicated that trans- resveratrol is unstable under sun exposure and heating. It changes partly to cis -resveratrol under the action of sufi light and/or heating. The absorbance of 306 nm decreases 52％ after sun exposure for 0. 5 h and decreases 32％ after heating for 60 h at 60 ℃. Under sun exposure for 36 h, the scavenging capacity for DPPH · of resveratrol solution increases 300％ as comparing with the original resveratrol solution; and the inhibition rate to phenolase and eatecholase of the resveratrol solution after sun exposure achieves 30. 74％ and 19. 42％ respectively,while that of the original resveratrol solution before sun exposure is zero.关键词
化妆品添加剂/白藜芦醇/光稳定性/热稳定性/DPPH自由基/酪氨酸酶Key words
additive of cosmetics/ resveratrol/ photo - stability/ thermo - stability/ DPPH · / tyrosinase分类
化学化工引用本文复制引用
史先敏,严泽民,谢静红,周华锋,何宏轩,段明星..白藜芦醇的光稳定性和热稳定性研究[J].日用化学工业,2011,41(3):204-207,4.
