透明质酸二糖的制备及护肤功效.docxVIP

透明质酸二糖的制备及护肤功效

目录

一、内容描述................................................3

1.透明质酸简介..........................................3

2.透明质酸在护肤品中的应用..............................3

二、透明质酸二糖的制备方法..................................5

1.材料与设备............................................6

透明质酸钠.............................................7

乙酸乙酯...............................................8

氢氧化钠...............................................9

蒸馏水................................................10

仪器与设备............................................10

三角瓶................................................12

搅拌器................................................13

蒸馏水器..............................................13

分液漏斗..............................................15

滴定管................................................16

超声波清洗器..........................................16

2.制备过程.............................................17

原料处理..............................................18

提取和纯化透明质酸钠..................................18

浓缩透明质酸钠溶液....................................20

制备透明质酸二糖......................................21

配制一定浓度的乙酸乙酯溶液............................22

向乙酸乙酯溶液中加入氢氧化钠溶液......................23

缓慢加入透明质酸钠溶液................................24

搅拌反应..............................................24

过滤反应混合物........................................26

分离透明质酸二糖......................................27

结晶与洗涤............................................28

干燥透明质酸二糖......................................29

三、透明质酸二糖的护肤功效.................................30

1.抗氧化作用...........................................32

2.保湿作用.............................................32

3.抗炎作用.............................................33

4.修复皮肤屏障功能.....................................33

5.促进皮肤新陈代谢.....................................34

四、结论...................................................35

1.总结透明质酸二糖的制备方法和护肤