Preparation and antimicrobial activity of solid soap from kefir cheese wastewater

Abstract

All Soap made from chemicals causes side effects on the skin. making soap with natural ingredients kefir cheese wastewater whey) is safe for the skin and has antibacterial properties. The research aim was to produce solid soap-made kefir cheese wastewater, with determined physicochemical characteristics, and better antibacterial activity. The materials used in this research are cheese wastewater (whey). This research was making a kefir formula with the main ingredient of a varied concentration of whey added with turmeric. The solid soap kefir cheese whey contains olive oil, palm oil, VCO, sodium hydroxide, and variations of kefir whey. The characteristic test was conducted by determining free alkali, water content, pH, and foam height. The well diffusion method was applied to test the antibacterial activity. The results show that all formulas of solid soap from kefir cheese wastewater indicated that the quality test kefir whey meets the requirements established by SNI 3532: 2016 and ASTM-D 2002. Soap kefir whey cheese with variant dyes Curcuma Longa potential alternative to the cosmetic industry in anti-acne soap production.