Kelarutan Zat Warna Organik dalam Gelasi Mikroemulsi Water In Oil dari Sistem Air, Surfaktan Nonionik (Brij 35) dan Pentanol

Abstract

Research on solubility from organic pigments of turmeric (Curcuma longa Linn) and telang flower (Clitoria ternatea L.) in water-in-oil microemulsion gelation on system of water, nonionic surfactant (Brij 35) and pentanol has been studied. The purpose of this research was the preparation of water-in-oil microemulsion gelation, determines solubility, density, and bias index of organic pigments in water-in-oil microemulsion gelation on system of water, nonionic surfactant (Brij 35) and pentanol. The method used is the sol-gel method. The  solubility in water-in-oil microemulsion gelation of turmeric is 2,41832% (pH 4,5) and 2,61402% (pH 9,5) and telang flower is 1,21274%  (pH 4,5) and 1,6136% (pH 9,5). The bias index of turmeric is 1,4024 (pH 4.5) and 1,4034 (pH 9,5) and telang flower is 1,4004  (pH air 4,5) and 1,4014 (pH 9,5).The density of turmeric is 0,88778g/cm³ (pH 4,5) and 0,88912g/cm³ (pH 9,5) and telang flower is 0,8793g/cm³ (pH 4,5) and  0,8872g/cm³ (pH 9,5).