Quality Characteristics and Antibacterial Activity of Transparent Solid Soap with Addition of Cananga Oil (Cananga odorata)

Abstract

: Cananga oil ( Cananga odorata ) is a natural source of fragrances that can be used as an antibacterial agent, so cananga oil can be added to the formulation for making antibacterial soap. Therefore, the aim of this study is to determine the formulation of cananga soap using different types of oil and to characterize the quality of transparent solid soap. This study uses a completely randomized design (CRD) with a factorial pattern consisting of two factors and three replications. Oil type (VCO and palm oil) and cananga oil concentration (0% (control), 0.5%, 1%, and 1.5%; w / v) were factors in this study. Moisture content, free alkali content, pH, hardness, foam stability and antibacterial activity were analyzed. Staphylococcus aureus and Escherichia coli were used to test antibacterial activity. The results showed that soap made from VCO oil and 1.5% cananga oil was the best formulation. The characteristics of transparent solid soap are water content 1.81-4.39%, free alkali content 0.63-0.96%, pH 11.33-11.81, hardness 0.042 - 0.065 mm / g / s, and foam stability 69.70-85.45%. However, soaps made from VCO were only able to inhibit the growth of Staphylococcus aureus with inhibitory diameters of 8.1-11.0 mm. Further research is needed to reduce the levels of free alkali in soap and to increase the concentration of cananga oil so that it can inhibit the growth of Escherichia coli .