English  |  正體中文  |  简体中文  |  Items with full text/Total items : 17419/19718 (88%)
Visitors : 6176882      Online Users : 780
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/310902800/30151

    標題: Nanocarrier of Artrocarpus lakoocha heartwood extract application for whitening agent in cosmetic
    貢獻者: 化粧品應用與管理系
    關鍵字: Artocarpus Lakoocha Roxb
    nanostructured lipid carrier
    日期: 2016
    上傳時間: 2016-12-21 15:37:46 (UTC+8)
    摘要: In the last decade many research interest about encapsulation technology that can protect natural substance from photo-oxidation or degradation. It probably used in foods, medicine, cosmetic, agriculture and industry. In this research we interesting use oxyresveratrol which is extracted from Artocarpus Lakoocha Roxb. (AL) heartwood that is a perennial plant found mostly in Thailand. It was used for Thai traditional medicine. In our study extraction oxyresveratrol by using 95% ethanol. Oxyresveratrol was yield of 78.8% by HPLC investigated. In-vitro study was found the IC50 of antioxidation of crude extracted versus vitamin C were 63 and 28 μg/mL respectively (DPPH method). It was also found IC50 of anti-tyrosinase activities of crude extract higher than kojic acid 32 fold. In addition NLC were utilized for enhance stability of oxyresveratrol. The oxyresveratrol loaded NLC was prepared by hot high- pressure homogenizer at 500 bar, 5 cycles with various a surfactant. Investigation stability and physicochemical property of nanocolloid during storage was observed at 4 ?C 25 ?C and 45 ?C. The optimum formulation was used tween 80 as a surfactant to achieve efficiency for improving stability for oxyresveratrol than others. The mean particle size was approximately ? 200 nm with narrow dispersion, lower than 0.2 and zeta potential became less negative as -30 mV. The encapsulation efficiency was showed up to 90%. The result was conclude that this invention has ability for used as whitener in cosmetic.
    關聯: 網際網路公開:2021-12-31,學年度:104,76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