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

A Study on The Preservation Efficacy Reduction of Parahydroxybenzoic Acid Derivatives in Surfactant and Inorganic Powder Materials of Emulsion System

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 TiO₂/Talc of inorganic powder meterial from emulsion system. It was found that the preservation efficacy of tween-80 and TiO₂/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 TiO₂/Talc, MBC appeared in 0.22w/v% / 0.23w/v%. In general, the equation of Talc s adsorption weight(A·W) has a tendency to show in A·W=11.5C0.745