醇沉法桃花多糖有效成分的提取及护肤功效评价
关键词： 桃花；多糖；醇沉法；保湿
Peach blossom the extraction of effective components, and the evaluation of the effect that protect skin
Abstract: In this paper by the method of alcohol sink, peach blossom polysaccharide was extracted, and optimize the extraction method. Polysaccharide of crude extractings from its hygroscopicity, loss of water and the determination of oxidation resistance, will receive the polysaccharide as natural active ingredients in cream, moisturizing cream. Study of compatibility of moisturizing cream, the results show that: (1) the peach blossom polysaccharide to absorb water and water test, after 48 hours of testing, at 81% and 43% humidity, peach blossom bibulous rate of polysaccharide is 28%; Peach blossom water loss rate of polysaccharides were 91% and 99% respectively. (2) will join the rest of the cream matrix of polysaccharide, humidity measurement experiment to human skin, it is concluded that to join for the average skin moisture cream growth of polysaccharide reached 7.8%, obviously has moisturizing effect to the skin. To 40℃ to 5℃ heat test and hardy and stability testing, visual sample no layering or precipitation, no change color, no smell, peach blossom polysaccharide extract can add moisture cream in stability and good heat resistant to cold and (3) after hydroxyl free radical clearance test to prove that the peach blossom polysaccharide and no obvious oxidation resistance. Illustrate the peach blossom has a certain application prospect in the hydration of cosmetics.
Key words: peach blossom; polysaccharide ; alcohol deposition method; moisturizing
目录
1 前言...1
1.1 天然化妆品的发展...1
1.2桃花国内外的研究现状概述2
1.2.1 桃花的主要成分..2
1.2.2 多糖的保湿机理2
1.2.2 多糖在化妆品中的应用..3
1.2.2 黄酮的抗氧化性3
1.3本课题的研究意义和目的..4
2 实验原理与方法6
2.1 实验原料与仪器设备...6
2.1.1 实验原料...6
2.1.2 实验仪器与设备.7
2.2 实验步骤7
2.2.1 桃花多糖的提取...8
2.2.2 旋转蒸发仪......8
2.2.3 桃花多糖的保湿性测定9
2.2.4 桃花多糖的抗氧化性测定.10
2.2.5 保湿基霜的配制....12
2.2.6膏霜性能的测试方法.13
2.2.7膏霜保湿性能的测试方法..15
3 实验结果与讨论..15
3.1不同提取方法提取率的计算与研究....15
3.2 对吸水性及失水性的结果讨论....15
3.2.1 吸水性的测定...18
3.2.2 失水性的测定...20
3.3 桃花多糖提取物的羟自由基清除率的研究.20
3.4 保湿基质膏霜的配方确定及其理化结果研究...20
3.4.1 未加入桃花多糖提取物的膏霜配方..23
3.4.2 加入桃花多糖提取物的膏霜配方.24
3.4.3 加入粗提物的膏霜理化指标测试结果..26
上一篇：溶剂浸提法紫甘蓝色素提取研究
下一篇：托盘青冈容器苗的生长和光合特性