“Uji Kelayakan dan Perbedaan Daya Hambat Variasi Konsentrasi Sabun Cair Ekstrak Daun Beluntas (Plucheae Folium) Terhadap Bakteri Staphylococcus aureus”.

Soap is a skin cleansing preparation made from the basic ingredients of soap
with the addition of other permissible ingredients and without irritating the skin.
Beluntas leaves contain flavonoids which are useful as antibacterial. Thus beluntas
leaves can be formulated into liquid soap preparations. Based on this, the researchers
wanted to make liquid soap preparations with the active ingredient of the beluntas
leaf extract along with a test of the inhibitory power of Staphylococcus aureus and
the feasibility test (organoleptic and hedonic or preferred).
The product studied was the Beluntas leaf extract liquid soap preparation
which consisted of three formulas with concentrations of 10%, 30%, and 90%. And
feasibility test consisting of organoleptic test, and hedonic test. Accompanied by a
test of activity against Staphylococcus aureus by the diffusion method (Kirby-buer
test). Calculation of the inhibition zone around the cylinder in the activity test was
analyzed based on the classification of the inhibition response of the growth of
Staphylococcus aureus according to David and Stout (1971).
The results of the study of the inhibitory difference test showed differences
in concentration variations. The higher the concentration the higher the inhibition of
liquid soap of the beluntas leaf extract against Staphylococcus aureus. The feasibility
test (organoleptic and hedonic or preferred) of liquid Beluntas extract liquid soap is
only a 10% concentration received.
Keywords: liquid soap, beluntas leaves, activity test, feasibility test, Staphylococcus
aureus.