Uji Daya Hambat Ekstrak Daun Jamblang (Syzygium Cumini (L.) Skeels) Terhadap Pertumbuhan Bakteri Streptococcus Pyogenes dan Proteus Mirabilis

Infectious diseases are a problem for public health and can increase patient morbidity and mortality. Bacteria that cause infectious diseases include Streptococcus pyogenes and Proteus mirabilis. Inappropriate use of antibiotics can cause resistance problems and the effects of undesirable drugs. Jamblang (Syzygium cumini) leaf extract can be used as a natural antibacterial drug. There is a study showing the content of active compounds in the leaves of Jamblang are Flavonoids, tannins, alkaloids, and saponins are components of chemical compounds that are suspected as antibacterial. This study aims to determine the antibacterial activity of Jamblang leaf extract against Streptococcus pyogenes and Proteus mirabilis bacteria. The method used is the Minimum Inhibitory Concentration method using well diffusion. The study used Jamblang leaf extract with various concentrations of 10%, 20%, 30%, and 40%, the test bacteria used were Streptococcus pyogenes and Proteus mirabilis, using positive control of chloramphenicol, and negative control of 10% DMSO. The results showed that Jamblang leaf extract can inhibit the growth of Streptococcus pyogenes and Proteus mirabilis bacteria in all concentrations. In the Kruskall Wallis Non-Parametric statistical test the two bacteria obtained P 0.05.In Streptococcus pyogenes bacteria the value of P = 0.031, and Proteus mirabilis bacteria the value of P = 0.015. These results indicate a real difference in this study.Penyakit infeksi merupakan masalah bagi kesehatan masyarakat dan dapat meningkatkan morbiditas dan mortalitas pasien. Bakteri yang menyebabkan penyakit infeksi diantaranya yaitu Streptococcus pyogenes dan Proteus mirabilis. Penggunaan antibiotik yang tidak tepat dapat menimbulkan masalah resistensi dan efek obat yang tidak dikehendaki. Ekstrak daun Jamblang (Syzygium cumini) dapat digunakan sebagai obat antibakteri alami. Ada sebuah penelitian menunjukkan kandungan senyawa aktif pada daun Jamblang adalah Flavonoid, tannin, alkaloid, dan saponin merupakan komponen senyawa kimia yang diduga sebagai antibakteri. Penelitian ini bertujuan untuk mengetahui aktivitas antibakteri ekstrak daun Jamblang terhadap bakteri Streptococcus pyogenes dan Proteus mirabilis. Metode yang digunakan adalah metode Konsentrasi Hambat Minimum dengan cara difusi sumuran. Penelitian menggunakan ekstrak daun Jamblang dengan variasi konsentrasi 10%, 20%, 30%, dan 40%, bakteri uji yang digunakan adalah Streptococcus pyogenes dan Proteus mirabilis, menggunakan kontrol positif kloramfenikol, dan kontrol negatif DMSO 10%. Hasil penelitian menunjukkan bahwa ekstrak daun Jamblang dapat menghambat pertumbuhan bakteri Streptococcus pyogenes dan Proteus mirabilis pada semua variasi konsentrasi. Pada uji statistik Non-Parametrik Kruskall Wallis kedua bakteri tersebut didapatkan P0,05. Pada bakteri Streptococcus pyogenes nilai P=0,031, dan bakteri Proteus mirabilis nilai P=0,015. Hasil tersebut menunjukkan adanya perbedaan yang nyata pada penelitian ini

The Antioxidant and Cytotoxic Effects of Cosmos caudatus Ethanolic Extract on Cervical Cancer

BACKGROUND: Oxidative stress is closely related to all aspects of cancer. Cosmos caudatus ethanolic extract (CCEE) has been proved to have antioxidant effect that inhibited cancer cell growth due to its bioactive compounds such as catechin, quercetin and chlorogenic acid. This study aimed to evaluate antioxidant and anticancer activity of CCEE and its compounds.METHODS: Total phenol was measured according to the Folin-Ciocalteu method. Catechin, quercetin and chlorogenic acid contained in CCEE were identified by high-performance liquid chromatography (HPLC). Antioxidant activity was evaluated by 2,2′-azino-bis-(3-ethylbenzthiazoline-6-sulfonic acid) (ABTS)-reducing activity, 1,1-diphenyl-2-picrylhydrazyl (DPPH) scavenging activity, and ferric reducing antioxidant power (FRAP) activity test. The cytotoxic activity of CCEE was determined by MTS [3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium] assay on HeLa cells.RESULTS: The result showed that total phenol of CCEE was 181.64±0.93 µg Cathecin/mg extract. ABTSreducing activity test showed that catechin had the highest activity (2.90±0.04 µg/mL), while CCEE had moderate activity compared to other compounds. FRAP activity test demonstrated that catechin had the highest activity (315.83 µM Fe(II)/µg) compared to other compounds. DPPH scavenging activity of CCEE was 22.82±0.05 µg/mL. Cytotoxicity test on HeLa cell showed that CCEE had lower activity (inhibitory concentration (IC)50= 89.90±1.30 µg/mL) compared to quercetin (IC50 = 13.30±0.64 µg/ mL).CONCLUSION: CCEE has the lowest antioxidant activity compared to quercetin, catechin, and chlorogenic acid and has the lowest anticancer activity compared to quercetin. However, CCEE and its compounds has potential as antioxidant and anticancer properties.KEYWORDS: antioxidant, anticancer, catechin, Cosmos caudatus, querceti

The Potential Antibacterial Effect of Papaya Leaf Extract (Carica papaya L) and Miana Leaf Extract (Coleus scutellarioides L) as Adjuvant Therapy for Rifampicin-Resistant Tuberculosis

The adhesion of Rifampicin-resistant TB to neutrophils plays an essential role in colonization. Several active compounds in papaya leaf and Miana leaf (Coleus scutellarioides L) are believed to regulate or prevent the formation of bacterial colonies. The purpose of this study was to determine the anti-bacterial effectiveness of extracts of papaya leaf (Carica Papaya L.) and Miana leaf (Coleus scutellarioides L) against bacterial isolates of Rifampicin-Resistant TB strain (RR). This research method is a in vitro laboratory experiment, and extracts of papaya leaf and Miana leaf (50, 25, 12,5%) were tested as anti-bacterial using the M-TB susceptibility test using the Proportion Method. The results showed the anti-bacterial ability of papaya leaf extract against bacterial isolates of the MTBC-Resistant Rifampicin strain at a concentration of 50% with a resistance percentage value of 0% so that it was included in the Sensitive category, but at a concentration of 25% the resistance percentage value was 42.86% % and a concentration of 12.5%, the percentage value of resistance is 42.86% so that it is included in the category of resistance (Resistant > 1% and Sensitive < 1%). The anti-bacterial ability of miana leaf extract against bacterial isolates of the MTBC-Resistant Rifampicin strain at a concentration of 50% with a resistance percentage value of 5.33%, at a concentration of 25%, with a resistance percentage value of 17.14%, and at a concentration of 12.5%, with a resistance percentage value of 100%, so all are included in the resistant category. The Conclusion 50% papaya leaf extract inhibits the formation of Rifampicin-resistant MTBC-resistant bacterial colonies, allowing its usage as a substitute ingredient in Rifampicin-resistant MTBC-resistant medications