INTISARI Ekstrak kering lidah buaya dan ekstrak kental daun sirih merah mengandung senyawa alkaloid, flavonoid, tanin, saponin dan fenol yang mempunyai aktivitas sebagai antibakteri penyebab jerawat. Penelitian ini bertujuanUntuk menentukan konsentrasi ekstrak kering lidah buaya (Aloe vera (L) brum f), untuk menentukan ekstrak kental daun sirih merah (Piper crotacum ruiz dan pav) mempunyai daya hambat ter terhadap bakteri Propionibacterium acnes dan Staphylococcus aureus penyebab jerawat dan untuk menentukan konsentrasi kombinasi ekstrak kering lidah buaya (Aloe vera (L) brum f) dan ekstrak kental daun sirih merah (Piper crotacum ruiz dan pav)mempunyai daya hambat terterhadap bakteri Propionibacterium acnes dan Staphylococcus aureus penyebab jerawat.Tahap-tahap penelitian yaitu determinasi tanaman lidah buaya dan daun sirih merah, pembuatan ekstrak, pemeriksaan ekstrak meliputi organoleptik, pH, uji skrining fitokimia serta pengujian aktivitas masing-masing ekstrak kering lidah buaya dengan konsentrasi 10%, 15%, 20%, 25%, 30% dan 35%, ekstrak kental daun sirih merah dengan konsentrasi 25%, 12,5%, 7,16%, 3,13%, 1,78% dan 0,78% serta kombinasi ekstrak kering lidah buaya dan ekstrak kental daun sirih merah dengan konsentrasi 50%, 25%, 12,5%, 7,16%, 3,13%, dan 1,56 terhadap bakteri Propionibacterium acnes dan Staphylococcus aureus. Kombinasi ekstrak kering lidah buaya dan ekstrak kental daun sirih merah memiliki aktivitas antibakteri terhadap bakteri Staphylococcus aureus pada konsentrasi 1,56 % dan Propionibacterium acne pada konsentrasi 3,13 Kata kunci : Lidah buaya, daun sirih merah, Propionibacterium acnes, Staphylococcus aureus. ABSTRACT Dried aloe vera extract and thick red betel leaf extract contains alkaloid compounds, flavonoids, tannins, saponins and phenols that have activity as an antibacterial cause of acne. The aim of this study was to determine the concentration of Aloe vera (L) brum f) extract, to determine the thick red betel leaf extract (Piper crotacum ruiz and pav) to have the inhibitory effect against the bacteria Propionibacterium acnes and Staphylococcus aureus causes acne and to determine the concentration of Aloe vera (L) brum f) and red thick betel leaf extract (Piper crotacum ruiz and pav) have inhibitory effect on bacteria Propionibacterium acnes and Staphylococcus aureus cause acne. The research stages are the determination of aloe vera and red betel leaf, extract preparation, extract examination including organoleptic, pH, phytochemical screening test and activity test of dry aloe vera extract with concentration 10%, 15%, 20%, 25% , 30% and 35%, thick red betel leaf extract with concentration of 25%, 12.5%, 7.16%, 3.13%, 1.78% and 0.78%, and combination of aloe vera extract and viscous extract red betel leaves with concentrations of 50%, 25%, 12.5%, 7.16%, 3.13%, and 1.56 against the bacteria Propionibacterium acnes and Staphylococcus aureus. The combination of dry extract of aloe vera and thick red betel leaf extract have antibacterial activity against Staphylococcus aureus bacteria at concentration 1.56% and Propionibacterium acne at concentration 3,13 %. Keywords: aloe vera, red betel leaf extract, Propionibacterium acnes, Staphylococcus aureus
Efficacy of Telavancin against Penicillin-Resistant Pneumococci and Staphylococcus aureus in a Rabbit Meningitis Model and Determination of Kinetic Parameters
