Utilization and development of modified chitosan in cosmetic products

Chih-Yu Cheng ； Yi-Sing Juei ； Pei-Jyun Liou ； Yi-Ting Ku

《臺灣水產學會刊》 45卷4期 (2018/12) Pp. 209-217

https://doi.org/10.29822/JFST.201812_45(4).0001

摘要

Chitosan exhibits good antibacterial and antimildew properties. In addition, it can act as a deodorant and a moisturizing agent. It absorbs oil and allows adsorption of metal ions, facilitates coagulation, and promotes healing of wounds. Hence, it is suitable for application in cosmetic and cleansing products. However, as chitosan is not soluble in soap alkalis, its application is limited. In this study, the sol-gel process is employed to modify the physical form of chitosan for enabling additional applications. First, 4% chitosan particles are added to soap bases to form antibacterial exfoliating chitosan scrub soaps. Thereafter, citric acid, malic acid, ascorbic acid, and acetic acid are used to dissolve the chitosan to form chitosan balance lotions. They are applied to neutralize excess soap alkali on the body and simultaneously generate fatty acid to nourish and moisturize the skin on the body. Moreover, the sol-gel process is employed to vigorously stir chitosan and sodium lauroyl glutamate into a gelation substance. As a gelation, chitosan microparticles without phosphorus or sulfur are formed. Chitosan is successfully combined with liquid soap in suspension. Thus, a slightly alkali micro-chitosan liquid soap is developed. It can be applied to sensitive skin prone to acne. It can penetrate pores to clean, act against bacteria, remove oil, and promote wound healing.

關鍵字

chitosan ； cosmetic products ； chitosan microparticles