Preparation of the antimicrobial masks with herbal extracts

• Main Authors: Tsung-Ying Tsai, 蔡宗穎
• Other Authors: Ya-Fen Wang
• Format: Others
• Language: zh-TW
• Published: 2015
• Online Access: http://ndltd.ncl.edu.tw/handle/rd9nkh

碩士 === 中原大學 === 生物環境工程研究所 === 103 === Cotton fabric is essential for daily life, therefore, making cotton fabric antimicrobial is an important issue. Antibacterial chemicals are traditionaly added for most product , which are both risky to the environment and human body. However, the natural herbal extracts, which not only have the antibacterial function but also have therapeutic effect on the human body was a good alternative for the antimicrobial application. Microcapsules is a widely used technology which can be applied to food, liquid crystal, and medicine…etc. There are some advantages of the microcapsules, for example, the controlled of substance release rate and provides better adhesion. However, the disadvantage of using chinese herbal medicine as an antimicrobial agent are the decreasing antibacterial ability apparently, the incomplete adhesion and durability on the surface of cotton fabric while coating with the extracts. Herbal deposited on the surface led to less durability. Therefore, the chinese herb with made by microcapsules, and the application of crosslinking reaction to will enhance the ability of persistent antimicrobial of herbal antibacterial effect, and the durability of the antibacterial cotton fabric. The results shows that the antibacterial efficiency of skullcap for E. coli and S. aureus can reach 99.9%. Sophora has no antibacterial effect for E. coli , but S. aureus antibacterial efficiency can reach 99.9 %. After 24 hours, antibacterial efficiency of herbal microcapsule can still be maintained at 99.9%. The antibacterial efficiency of herbal cotton fabric for E. coli and S. aureus can both reach 99.9%. Moreover, for the durability test, the antibacterial efficiency of fabric still have over 90% after 30 times cleaning. In pilot filtration tests, the filtration efficiency of the cotton fabric coated with herbs extract are 95.81 and 90.19%, for fungals and bacteria respectively.