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  5. 紅茶水萃取物之防曬、護膚及染髮劑型之研究
 
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紅茶水萃取物之防曬、護膚及染髮劑型之研究

Other Title
The dosage form study of sunburn prevention,skin protection and hair dyeing with black tea aqueous extract
Type
thesis
Date Issued
2013-01-17
Author(s)
葉孟宜
Advisor
徐鳳麟
Subjects
系所名稱:藥學系(碩博士班)
Description
學位別:博士
語文別:中文
指導教授:徐鳳麟
共同指導教授:
口試委員:廖嘉鴻;李美賢;歐耿良;張永勳;謝博軒;林山陽
中文關鍵字:紅茶水萃取物;紫外線照射;角質層;高增生作用;防曬劑;微脂體;通透作用;非離子界面活性劑;醇脂體;穿皮傳遞
Abstract
本論文以紅茶水萃取物(BTE)發展安全的天然防曬劑。在動物實驗模式,BTE顯示可減少因紫外線過度曝曬所造成之傷害。於ICR小鼠的背部皮膚以含有1% BTE (2 mg/cm2或 20 mg/cm2) 乳膏前處理,將ICR小鼠分別以UVA (236.08 J/cm2)、UVB (118.04 J/cm2) 或 UVC (19.67 J/cm2) 照射。經過五天之後,ICR小鼠背部皮膚經含有1% BTE 20 mg/cm2乳膏前處理者,與控制組比較,顯示皮膚正常或僅呈現輕微紅腫、輕微脫皮結痂現象且不會出現皮膚角質層增生作用。這些結果證明1% BTE對於UVA、UVB和UVC的照射具明顯的保護作用。BTE將可作為天然的防曬劑,而且推測BTE的防曬效果可能來自其所含的主成分咖啡因(caffeine)和沒食子酸(gallic acid)。因此,本研究也探討使用niosomes作為體外傳遞BTE主成分caffeine 和 gallic acid之防曬劑微胞劑型,多層的niosomes劑型是以薄膜水合法所製成,並評估其以穿皮劑型做為護膚劑之可行性。結果顯示比起caffeine和gallic acid分散在水溶液之劑型,包埋caffeine和gallic acid的niosomes劑型於穿透皮膚膜的能力較高。因此,BTE之niosomes劑型具有做為防曬劑之潛力。另外利用ethosomal劑型,它是由非離子界面活性劑,水和高濃度之乙醇所組成。在體外實驗,包覆caffeine and gallic acid的 ethosome劑型 與BTE溶液進行比較,結果呈現,非離子ethosome劑型明顯促進BTE在毛髮表面的吸附作用。非離子ethosome劑型比BTE溶液有較多毛髮表面的傳遞及吸附效應。因而此劑型具有可發展成為毛髮染色劑及保護劑之可能性。
URI
https://203.71.86.71/handle/123456789/14048

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