English  |  正體中文  |  简体中文  |  Items with full text/Total items : 17333/19639 (88%)
Visitors : 5257796      Online Users : 594
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
Scope Tips:
  • please add "double quotation mark" for query phrases to get precise results
  • please goto advance search for comprehansive author search
  • Adv. Search
    HomeLoginUploadHelpAboutAdminister Goto mobile version
    Please use this identifier to cite or link to this item: http://ir.cnu.edu.tw/handle/310902800/30746

    標題: 中草藥萃取物之抗菌活性研究與探討
    Evaluation of the antibacterial activity of extracts from herbal plants
    作者: 莊佳茜
    貢獻者: 化粧品應用與管理系
    關鍵字: 中草藥萃取物
    Chinese herbal extracts
    disc-diffusion assay
    minimum inhibitory concentration
    minimum bactericidal concentration
    D-value method
    日期: 2017
    上傳時間: 2018-01-11 11:42:22 (UTC+8)
    摘要: 中草藥植物近年來成為主要原料開發的方向,其萃取物是新一代化粧品配方中常用的添加物,本研究以一些中草藥之乙醇萃取物來評估與探討抗菌活性,透過實驗數據來驗證這些萃取物對於金黃色葡萄球菌、綠膿桿菌和大腸桿菌的抗菌效能。

    In recent years, Chinese herbal plants have become a main direction of development on cosmetic materials because the ethanol extracts should be the most common additives in new cosmetic formulas. The aim of this study is to assess the antibacterial activity from some Chinese herbal extracts. The experimental results would verify the antibacterial effect on Staphylococcus aureus, Pseudomonas aeruginosa and Escherichia coli.

    Antibacterial activity was determined with the disc-diffusion assay, the results showed that ethanol extracts of Rhus chinensis Mill exhibited the best inhibitory effect on S. aureus, and the diameter of inhibitory zone was 14.7?0.5mm. The aqueous extracts of Syzygium aromaticum showed better inhibitory zone with 13.3?1.5mm on E. coli. In the experiments of minimum inhibitory concentration and the minimum bactericidal concentration, the results showed the ethanol extracts of Rhus chinensis Mill for S. aureus had the best antibacterial effect, with a MIC value of 0.02% and MBC value of 0.09%, individually. Furthermore, Rhus chinensis Mill extract for E. coli also had the efficacy, the MIC and MBC value were 0.15% and 0.52%, respectively. However, the ethanol extracts from Syzygium aromaticum, Zingiber zerumbet and Rhus chinensis Mill were all displayed in good antibacterial effects against P.aeruginosa, with the MIC value of 0.25%, 0.25% and 0.5%; and with the MBC value of 0.26%, 0.35 and 0.54%, respectively. In conclusion, the experimental data demonstrated the ethanol extracts of Rhus chinensis Mill had better antibacterial effect on S. aureus and E. coli; the ethanol extracts of Syzygium aromaticum and Zingiber zerumbet showed the best antibacterial effect on P.aeruginosa. As well, the ethanol extracts of Syzygium aromaticum, Zingiber zerumbet and Rhus chinensis Mill were made into three antibacterial complexes adding to the essence product with special ratio and were evaluated the antibacterial efficacy by the D-value method. Finally, we acquired the D-value time all within 4 hours on S. aureus, P. aeruginosa and E. coli in the essence of the formula. The D-value time of three antibacterial complexes for S. aureus, P. aeruginosa and E. coli were from 1.4 to 2.4 hrs, from 1.5 to 2.3 hrs, and from 1.9 to 3.3 hrs, respectively.
    關聯: 電子全文公開日期:2022-07-28,學年度:105,72頁
    Appears in Collections:[化妝品應用與管理系(所)] 博碩士論文

    Files in This Item:

    File Description SizeFormat

    All items in CNU IR are protected by copyright, with all rights reserved.

    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback