The Microemulsion Stability of Virgin Coconut Oil Based on Tradition of Melala Sumbawa's Society

Devi Ayu Septiani (Magister of Science Education University of Mataram, Indonesia)
Jono Irawan (Chemistry Laboratorium, University of Mataram, Indonesia)
Hermansyah Hermansyah (Sekolah Menengah Atas Negeri 3 Lembar Lombok Barat, Indonesia)
Yayuk Andayani (Magister of Science Education, University of Mataram, Indonesia)

Acta Chimica Asiana
Vol. 4 No. 2 (2021)

The Melala is a tradition of the Sumbawa people who use coconut milk to obtain Sumbawa oil for traditional medicine. Coconut milk is a colloidal system of stable oil in water (O/W) microemulsion. Within a particular time, the emulsion will split to produce oil (VCO), protein, and water due to the colloid equilibrium on the stability of the coconut milk emulsion. The purpose of this study was to compare the microemulsion stability of the coconut milk colloid system. The VCO was isolated by heating, enzymatically, acidifying, and adding whiting methods for comparison. The physical stability of the O/W microemulsion was measured by the volume of VCO produced from various isolation methods in simple laboratory experiments. The results showed that the physical stability of the O/W microemulsion on VCO isolation by enzymatic method using papain enzyme was the least.