Making Solid Soap From Local Coconut Oil With Addition to Temulawak Powder (Curcuma zanthorrhiza)
This study aims to determine the effect of variations in the concentration of NaOH solution on the physical and chemical quality of solid soap made from local coconut oil added with ginger powder. The method in this study was an experimental method carried out at the Laboratory of Natural Sciences, Faculty of Science, CokroaminotoPalopo University. There are three variations in the concentration of NaOH solution, namely 20%, 30% and 40%. The results showed that the degree of acidity (pH) of soap with a concentration of 20% NaOH solution and 30% NaOH was 11. While the pH of soap with a concentration of NaOH solution was 40% by 12. Thus, the pH of the soap with a concentration of 20% NaOH solution and NaOH solution 30 % meets the standard quality of solid bath soap. While soap with a concentration of 40% NaOH solution does not meet the quality standard. The organoleptic test results showed that soap with a concentration of NaOH solution of 20% for testing criteria for texture, aroma and moisture was not good, the color was in a good category and the foam was not foaming. Soap with a concentration of NaOH solution of 30% for testing criteria for texture, color, aroma and moisture with good categories and foam with very much foam category. Soap with a concentration of NaOH solution of 40% for testing criteria for texture, color, aroma and moisture with very good categories and foam with very much foam category.
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