Journal of the Korean Society of Safety (한국안전학회지)
- Volume 7 Issue 3
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- Pages.22-29
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- 1992
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- 1738-3803(pISSN)
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- 2383-9953(eISSN)
The Growth Inhibition of Staplylococcus aureus in Emulsion Type Cosmetics with Antiseptics
방부살균제에 의한 유화형화장품에서의 Staplylococcus aureus의 성장억제
Abstract
Emulsion-type cometics contain many kinds of carbon and energy source i.e., vegetable oil, mineral oil and carbohydrate etc., those can be used as nutrients and caused contamination by microbials. Thereby we have to keep cosmetics from the possibility of contamination by microbials. From this viewpoint, the purpose of this study is to get the data necessary not only to prevent dermatopathia occurred by microbials but also to sustain the quality. In this experiment, we observed how many Staphylococcus aureus were grown in the prepared cosmetics with or without antiseptics so as to prevent contamination. When the contamination proceed, the stability of phase was disturbed and creaming phenomina was happened with some discoloration and bad smell. About 40 days after, the pH was changed from 7.6 to 6.5 and the refractive index of cosmetic raw materials were changed from 1.4415 to 1.4490(water : oil=70:30). By adding antiseptics Into prepared cosmetics, the number of Staphylococcus aureus with challenge test method were decreased to 7
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