香波配方的体外抗头屑活性检测
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摘要
头皮屑是一种常见的头皮代谢紊乱现象,困扰着几乎半数的人群。很多化妆品公司开发了含有抗菌物质如巯氧毗啶锌(ZPT)及苯咪丁酮等的抗头屑洗发香波,可以抑制真菌生长,特别是对马拉色菌酵母,一种头屑产生菌的抑制作用十分显著。对于抗头屑洗发香波,检测其是否通过抑制马拉色菌生长来改善头屑状况具有十分重要的意义。本项目旨在建立一种洗发香波抗真菌活性的检测方法。药敏试验的基本方法为最小抑菌浓度(MIC)和平板扩散实验。本实验比较了以硝酸纤维素滤纸和人工皮肤材质(Vitro-skin)作为基质,洗发香波及其它样品在洗去后的抗真菌活性。结果表明,ZPT,苯咪丁酮及其他三种含有ZPT成分的市售洗发香波在洗去之后在硝酸纤维素滤纸和人工皮肤才质(Vitro-skin)上均有部分沉积,据此可观察其抑菌区域。
Dandruff is a common scalp disorder that affects almost half of population.Cosmetic companies have developed anti-dandruff shampoo containing antimicrobial materials such as zinc pyrithione(ZPT) and climbazole which inhibit fungal growth especially Malassezia yeast,dandruff-causing organism.It is essential to examine whether anti-dandruff shampoo reduces Malassezia growth,so that improve dandruff.The aim of this investigation was to establish a test method for antifungal activity of shampoo.The basic methods of antimicrobial susceptibility testing are the minimum inhibitory concentration(MIC) and disk diffusion test.We have compared a disk diffusion test that uses nitrocellulose filter paper and artificial skin substrate(Vitro-Skin)as disks to estimate antifungal activity of shampoo or materials after rinse-off.We have identified that ZPT,climbazole and three commercial shampoos containing ZPT were deposited on disks with nitrocellulose filter paper and artificial skin substrate(Vitro-Skin) even after rinse-off,so zone of inhibition were observed.
引文
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