Journal of the Korean Applied Science and Technology (한국응용과학기술학회지)

The Korean Society of Applied Science and Technology (한국응용과학기술학회)
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A Study on The Preservation Efficacy Reduction of Parahydroxybenzoic Acid Derivatives in Surfactant and Inorganic Powder Materials of Emulsion System

파라옥시 안식향산 유도체가 유화계의 계면활성제 및 무기 분말재료에서 방부효능 저하에 관한 연구

  • Sung, Ki-Chun (Dept. of chemical engineering, Dae Jin University) ;
  • Kim, Ki-Jun (Dept. of chemical engineering, Dae Jin University)
  • 성기천 (대진대학교 이과대학 화학공학과) ;
  • 김기준 (대진대학교 이과대학 화학공학과)
  • Published : 1999.09.30
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Abstract

In this study, the relation of the preservation efficacy reduction with methyl paraben of parahydroxybenzoic acid derivatives was investigated using the dialysis membrane method with tween-80 of surfactant and $TiO_2/Talc$ of inorganic powder meterial from emulsion system. It was found that the preservation efficacy of tween-80 and $TiO_2/Talc$ from emulsion system was reduced due to the adsorption of methyl paraben. According to the microbe test, In case of tween-80, MBC appeared in 0.19 w/v% and in case of $TiO_2/Talc$, MBC appeared in 0.22w/v% / 0.23w/v%. In general, the equation of Talc's adsorption weight($A{\cdot}W$) has a tendency to show in $A{\cdot}W=11.5C^{0.745}$

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