Efektivitas Antibakteri Minyak Atsiri Rimpang Jahe Merah (Zingiber officinale var. Rubrum) Terhadap Bakteri Jerawat

A research to investigate antibacterial activities of the essential oil of Zingiber officinale var. Rubrum toward acne bacterials has been done. This study was aimed to compare antibacterial activities of the essential oil toward the growth of some bacteria contributing in acne formation. The separation of the essential oil was done by using destilation process method. From the separation, rendement of essential oil in Zingiber officinale var. Rubrum was 0.182% (v/b). Test of antibacterial activities of the essential oil was conducted using the agar diffusion method toward Propionibacterium acne, Pseudomonas aeruginosa, Staphylococcus aureus ATCC 25923 and Staphylococcus epidermidis in some concentrations including 5%, 10%, 15% and 20%. As result, higest concentration of the esssential oil (20%) resulted in biggest activities of Zingiber officinale var. Rubrum toward the bacterial growth marked by diameter of clear zone in the growth medium. The average of diameter of clear zone resulted from 20% essential oil was 20.1mm in Staphylococcus epidermidis; 19.3mm in Propionibacterium acne; 18.4mm in Pseudomonas aeruginosa and 13.8mm in Staphylococcus aureus ATCC 25923.