A Study on the Microbial Measurement for Cosmetics Using Automated Methods

자동화 장비를 사용한 화장품중의 미생물 검출에 대한 연구

  • Kim Eun-Young (Cosmetics Quality Assurance Team LG Household & Healthcare Ltd.) ;
  • Jang Seok-Tae (Cosmetics Quality Assurance Team LG Household & Healthcare Ltd.) ;
  • Choung Soung-Oun (Cosmetics Quality Assurance Team LG Household & Healthcare Ltd.) ;
  • Hong Tae-Won (EM Corporation)
  • 김은영 ((주)엘지생활건강 화장품 품질보증팀) ;
  • 장석태 ((주)엘지생활건강 화장품 품질보증팀) ;
  • 정성운 ((주)엘지생활건강 화장품 품질보증팀) ;
  • 홍태원
  • Published : 2004.12.01

Abstract

ATP bioluminescence system and impedance system were evaluated with the objective of reducing the time for microbial analysis of cosmetics formulations from 72 to 24 h. The meaningful correlation (at least $95\%$) was achieved when emulsion were artificially contaminated with low levels of different organisms, including Pseudomonas aeruinosa, Staphylococcus aureus, Escherichia coli and Ralstonia mannitolilytica. The standard agar plate method, ATP bioluminescence and impedance method were used for in this study. Successful evaluation and validation of automated systems has enabled the introduction of ATP bioluminescence and impedance method into routine use within the microbiology laboratory. This has provided a rapid assessment of product quality, resulting in faster throughput and resource maximization.

화장품중의 미생물을 검출하는데 소요되는 시간을 $48{\~}72{\;}h$에서 24 h 이내로 단축하고자 하는 목적으로 자동화 방법으로서 ATP bioluminescence 시스템과 impedance 시스템에 대한 비교 평가를 수행하였다. 인위적으로 저농도의 미생물로 오염시킨 에멀전 제형에 대하여 표준 한천 평판 배지법과 ATP bioluminescence 방법 및 impedance 측정 방법으로 분석을 실시한 결과에서 모두 유의한 검출 결과를 나타내었으며, 실제 적용 실험 결과에서도 각각 $95\%$ 이상의 좋은 상관관계를 나타내었다. 오염균으로는 표준 균주로서 Pseudomonas aeruginosa, Staphylococcus aureus, Escherichia coli와 사내 현장 검출 균주인 Ralstonia mannitolilytica를 사용하였다. 본 검증 결과에 따라 화장품의 미생물 품질 관리 방법으로 ATP bioluminescence 방법 또는 impedance 측정 방법을 활용한 자동화 장비의 사용을 통해 신속한 품질 판정이 가능하게 되었다.

Keywords

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