牛大力中防晒成分的超声提取及其稳定性  

Ultrasonic-assisted Extraction and Stability of the Sunscreen Constituents from Millettia speciosa

作　　者：郭飞燕[1] 纪明慧[1] 陈光英[1] 钟文英 GUO Feiyan;JI Minghui;CHEN Guangying;ZHONG Wenying(Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education,Chemistry and Chemical Engineering,Hainan Normal University,Haikou 571158,China)

机构地区：[1]热带药用资源化学教育部重点实验室,海南师范大学化学与化工学院,海南海口571158

出　　处：《海南师范大学学报（自然科学版）》2021年第3期291-299,共9页Journal of Hainan Normal University（Natural Science）

基　　金：海南省重点研发项目(ZDYF2019165)。

摘　　要：采用超声辅助提取法从牛大力中提取防晒成分,以单因素实验及正交实验考察防晒成分的最佳提取工艺条件,并且研究了提取液中防晒成分的稳定性。结果表明:以无水乙醇为溶剂,料液比为20∶25(mg/mL),提取温度60℃,提取时间90 min、超声功率144 W的条件下牛大力中防晒成分提取效果较佳,温度、光照和放置时间对提取液的防晒活性没有明显的影响。牛大力中含有较强的紫外线吸收成分,主要吸收波长在280~320 nm之间,具有开发为天然防晒剂的潜力。The sunscreen component was extracted from Millettia speciosa by using the ultrasonic-assisted extraction method, and the optimum condition of extraction was confirmed by means of single factor experiments and orthogonal experiment. The stability of the sunscreen component from the extraction was also investigated. The results indicated that under the extraction condition in which anhydrous ethanol was used as the solvent, the solid-liquidratio was 20:25(mg/mL), the temperature of extraction was 60 ℃, extraction time was 90 min and the ultrasonic power was 144 W, the sunscreen component from Millettia speciosa can be extracted preferably, the results of experiments also revealed that temperature, light and storage time did not have obvious effect on the activity of the sunscreen component. Therefore, Millettia speciosa contains the component absorbing ultraviolet strongly, the main absorption wavelength is between 280~320 nm, and this plant has the potential to be developed as a natural sunscreen.

关 键 词：牛大力 超声波辅助提取法 防晒成分 稳定性 

分 类 号：TQ658.24[化学工程—精细化工]