微生物細胞の熱測定による香粧品の防腐評価
書誌事項
- タイトル別名
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- Preservative Evaluation of Cosmetics and Toiletries by Microbial Calorimetry.
抄録
To observe the growth activity of bacteria and molds in cosmesics and toiletries, we attempted to create a device to measure the metabolic heat associated with growth nondestructively and continuously. However, in cosmetic products inoculated with microbes the growth rate is too slow to make an accurate measurement of the metabolic heat, even in a system without preservatives. we then found that the growth rate of microbes is elevated when they are adhered to material with a large specific surface area. Therefore, we examined the utility of various supports. As a result, the metabolic heat generated by the growth of the microbes became measurable by saturating a porous urethane foam with the products. This process elevated the growth activity about ten-fold.<br>The growth of microbes observed using this method exhibited different characteristics depending on the types and amounts of preservatives contained in the product, or on the type of microbes. The procedure employed here was found to be very useful in analyzing the preservative characteristics of the cosmetic products. It is suggested that this method can be used to evaluate quantitatively the preservative properties of cosmetics and toiletries.
収録刊行物
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- 日本化粧品技術者会誌
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日本化粧品技術者会誌 27 (3), 242-248, 1993
日本化粧品技術者会
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詳細情報 詳細情報について
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- CRID
- 1390001204501801216
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- NII論文ID
- 130004069733
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- ISSN
- 18844146
- 03875253
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可