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KMID : 0903520070500030210
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Journal of the Korean Society of Agricultural Chemistry and Biotechnology
2007 Volume.50 No. 3 p.210 ~ p.216
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Anti-microbial Effect of Irradiated Green Tea Polyphenol Addition into Cosmetic Composition
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An Bong-Jeun
Park Tae-Soon
Lee Jin-Young
Hyun Sok-Jun
Park Gun-Hye
Cho Young-Je
Kim Se-Gie
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Abstract
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Cosmetic products including skin and essence were manufactured to analyze the effect of green tea polyphenols addition. In addition, irradiation was applied to remove an undesirable color of green tea polyphenol(GTP), which may cause a problem in the marketing, of a final product; moreover, comparative studies were conducted with the cosmetic products on whether or not antiseptics were treated to verify its use for the development of non-antiseptic cosmetic products. Growth inhibition zones were shown in the microbial study except for Candida albicans. The minimum inhibitory concentration(MIC) of E. coli and C. albicans was 2,500 ppm but that of S. aureus was 1,000 ppm. The numbers of E. coli and S. aureus were reduced to undetected levels when 10,000 and 5,000 ppm of polyphenol were added, respectively. Results indicate that the addition of irradiated green tea polyphenol provides a good method to manufacture functional cosmetics including skin and essence with various biological activities such as antimicrobial activity without antiseptics.
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KEYWORD
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anti-microbial activity, green tea polyphenol, non-antiseptic cosmetic products
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