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Journal : Journal of Pharmaceutical and Health Research

Mekanisme Antibakteri Ekstrak Etanol Daun Kemangi (Ocimum basilicum L.) terhadap Salmonella typhi Nasri Nasri; Vera Estefania Kaban; Denny Satria; Hariyadi Dharmawan Syahputra; Zulmai Rani
Journal of Pharmaceutical and Health Research Vol 4 No 1 (2023): February 2023
Publisher : Forum Kerjasama Pendidikan Tinggi (FKPT)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47065/jharma.v4i1.3176

Abstract

Infectious diseases are conditions that can be brought on by a variety of different organisms, including bacteria, viruses, fungi, and parasites. Typhoid fever is an example of an infectious disease that frequently causes the body's defenses to come under attack. The fever associated with typhoid is a leading cause of death around the world. Infection with the bacterium Salmonella typhi is considered to be one of the potential causes of typhoid fever. When antibiotics are used to treat bacterial infections, there is a risk that the bacteria will become resistant to the medication. In day-to-day life, basil leaves are utilized both as a cooked vegetable and as a fresh vegetable. The antibacterial properties of kemangi leaves have yet to be fully uncovered. The purpose of this study was to investigate the various mechanisms that are involved in antibacterial activity. These mechanisms include cell leakage, minimum inhibitory concentration, minimum killing concentration, and antibiofilm activity. The minimum inhibitory concentration (MIC) was determined with the agar diffusion method, the minimum biofilm forming concentration (MBC) was determined with the staining method, and cell leakage was determined with UV-VIS spectrophotometry at wavelengths of 260 nm (DNA) and 280 nm (protein). Additionally, the formation of anti-biofilms was determined with microtiter plates and gentian violet staining. In the moderate category, the MIC value tests showed a concentration of 0.3125% with an inhibition zone value of 6.80 0.05 mm. These results were obtained from the MIC value. Because there was no detectable bacterial growth on the streaked medium, KBM was obtained at a concentration of 10%. At wavelengths of 260 and 280 nanometers, leakage cells show absorbance absorption. The percentage of biofilm activity that is measured when the concentration is increased to 25% is 44.82%. In conclusion, the ethanol extract of basil leaves possesses a possible antibacterial mechanism against Salmonella typhi. This was discovered through testing.
Uji Aktivitas Antibakteri Ekstrak Daun Karenda (Carissa carandas Linn.) Terhadap Bakteri Propionibacterium acne dan Staphylococcus epidermidis Vera Estefania Kaban; Nasri Nasri; Hariyadi Dharmawan Syahputra; Muhammad Fauzan Lubis; Denny Satria
Journal of Pharmaceutical and Health Research Vol 4 No 1 (2023): February 2023
Publisher : Forum Kerjasama Pendidikan Tinggi (FKPT)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47065/jharma.v4i1.3181

Abstract

Karenda leaves contain flavonoids, steroids or triterpenoids, saponins, and tannins that act as antimicrobial compounds. The aim of the study was to determine the antibacterial activity of the ethanol extract of Karenda leaves against several acne-causing bacteria. The research method involved characterizing the simplicia of karenda leaves and extract preparation by maceration using 96% ethanol as a solvent. and test the antibacterial activity of the ethanol extract of Karenda leaves using the agar diffusion method. The bacteria used were Propionibacterium acnes and Staphylococcus epidermis. The extract concentrations used were 300, 150, 125, 100, 75, 50, 25, and 5 mg/mL. Based on tests carried out by the ethanol extract of karenda leaves, the diameters of the inhibition zones were 7.2 ± 0.12 respectively; 7.8±0.10; 9.7±0.15; 11.23±0.25; 12.43±0.06; 13.57±0.06; 14.20±0.10; 16.47 ± 0.21 for Propionibacterium acne and 8.17 ± 0.06; 9.37 ± 0.15; 9.80 ± 0.10; 10.73 ± 0.15; 11.27±0.12; 12.43±0.06; 13.77±0.06; 15.47 ± 0.12 for Staphylococcus epidermis. he test results proved that 300 mg/mL was the best concentration for inhibiting the growth of Propionibacterium acnes and Staphylococcus epidermis bacteria.