Antibacterial and Physical Properties of Kersen (Muntingia calabura) Liquid Soap from Bulk Cooking Oil
Chika Shafa Maura (a), Mokhamad Ali Rizqi Maulana (b), Muhamad Athariq (c), Muhammad Fathar Aulia (d), Nisrina Fitri Nur Syamsi (e), Meriana (f), Neneng Siti Silfi Ambarwati (g), Tri Handayani Kurniati (h), Sri Rahayu (i), Yussi Pratiwi (j), Setia Budi (k)

a,b,c,d,e) Students of Chemistry Study Program, State University of Jakarta, Indonesia
f) Students of Chemistry Education Study Program, State University of Jakarta, Indonesia
g) Cosmetology Study Program, State University of Jakarta, Indonesia
h,i) Biology Study Program, State University of Jakarta, Indonesia
j,k)Chemistry Study Program, State University of Jakarta, Indonesia
setiabudi[at]unj.ac.id

Abstract

Efforts are needed to overcome the problem by changing the oil into useful side products. This study aims to determine the physical quality and antibacterial activity against staphylococcus aureus and Escherichia coli liquid soap from bulk cooking oil with ethanol extract of Kersen leaf. The method used is an experimental method with concentration variation. The soap.was tested for antibacterial activity using the disc diffusion method with soap concentration variation of 3%- 5%-7%- 9%-11%. Physical parameters of free alkali, moisture content, foam height, pH was done with kersen extract variation of 0.5%-1%- 1.5%- 2%- 2.5%-3%. Result suggest that concentration of 3% and 5% kersen leaf extract has been optimum condition for antibacterial activity, whilst concentration of 0.5% and 2.5% kersen leaf extract has been approved to have optimum physical characteristic of the soap. In the pH test with the addition of 1.5%- 2%- 2.5%- 3% kersen leaf extract met SNI. In conclussion the soap from bulk cooking oil added with ethanol extract of kersen has antibacterial activity and good physical properties.

Keywords: antibacterial, kersen, bulk, oil, soap

Topic: Chemistry