27 research outputs found

    AKTIVITAS ANTIBAKTERI EKSTRAK METANOL UMBI GADUNG (Dioscorea hispida Dennst.) TERHADAP BAKTERI PENYEBAB JERAWAT Propionibacterium acnes

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    Gadung (Dioscorea hispida Dennst.) adalah umbi liar yang banyak terdapat di wilayah Indonesia, khususnya di daerah Kabupaten Tasikmalaya, namun pemanfaatannya belum maksimal dibandingkan dengan tanaman umbi lainnya. Umbi gadung memiliki potensi besar dalam bidang farmasi, yaitu adanya senyawa fenol yang bermanfaat sebagai antimikroba. Tujuan penelitian adalah untuk mengetahui aktivitas antibakteri ekstrak metanol umbi gadung terhadap Propionibacterium acnes. Kadar fenol dianalisis menggunakan pereaksi Folin-Ciocalteu dan Spektrofotometer UV-Vis yang dinyatakan sebagai kadar fenol total (mg GAE/g ekstrak). Adapun uji aktivitas antibakteri dilakukan dengan metode disk diffusion. Hasil penelitian menunjukkan bahwa umbi Gadung mempunyai aktivitas antibakteri dengan diameter zona hambat 10,00┬▒0.00 dengan kadar fenol total sebesar 127,5313 ┬▒ 0,2133 mg GAE/gram untuk ekstrak daging umbi gadung dan 85,6719 ┬▒ 0,1931 mg GAE/gram untuk ekstrak kulit umbi gadung. Meskipun diameter zona hambatnya masih lebih rendah dibandingkan kontrol positif, namun hal ini menunjukkan adanya potensi antibakteri yang cukup bagus dari umbi gadung. Kata Kunci: Gadung, Fenol, Antibakteri, Jerawa

    SUNSERUM WAJAH SARI RIMPANG TEMU GIRING (Curcuma heyneana) TERFERMENTASI Lactobacillus bulgaricus

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    Long-term sun exposure can cause a variety of skin disorders, including sunburn and skin cancer. Sunscreen products containing antioxidants can help to prevent unwanted effects and protect the skin from free radicals. The rhizome of sleigh meeting (Curcuma heyneana) has chemicals 1,4- napthalenedione, 2-hydroxy-3-(-2-methyl-prophenyl), or other names Norlapachol, which has the potential as a suya screen and has strong antioxidant action. The study's goal is to see if the juice of fermented rhizome of Lactobacillus bulgaricus can be created as a sun serum face preparation, and then compare the value of antioxidant activity and sunscreen. Making fresh juice, fermented juice, phytochemical screening, preparation making, preparation evaluation, and SPF test are all part of the procedure. creating fresh juice, fermented juice, phytochemical screening, creating preparations, evaluating preparations, in-vitro SPF testing using a UV-Vis spectrophotometer, and antioxidant testing with the DPPH (2,2-Dyphenyl-1- Pycrylhydrazyl) method are all part of the approach. SPF F1 test value: 27.40 (ultra protected); F2: 27.84 (ultra protected); antioxidant activity test results: the IC50 value of fresh juice is 15.92 ppm (very strong); fermented juice is 11.02 ppm (very strong); and all preparation evaluations met the requirements according to the test standards. According to the findings, fresh and fermented ginger rhizome juice can be prepared as a sunscreen and antioxidant-rich facial sun serum preparation

    Reverse Docking, Molecular Docking, Absorption, Distribution, and Toxicity Prediction of Artemisinin as an Anti-diabetic Candidate

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    Aldose reductase is an enzyme that catalyzes one of the steps in the sorbitol (polyol) pathway that is responsible for fructose formation from glucose. In diabetes, aldose reductase activity increases as the glucose concentration increases. The purpose of this research was to identify and develop the use of artemisinin as an anti-diabetic candidate through in silico studies, including reverse docking, receptor analysis, molecular docking, drug scan, absorption, and distributions and toxicity prediction of artemisinin. Based on the results, we conclude that artemisinin can be used as an anti-diabetic candidate through inhibition of aldose reductase

    Synthesis and virtual screening of bis-(4-(tert-butyl)-N-(methylcarbamothioyl) benzamide)-Iron (III) complex as an anticancer candidate

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    Thiourea derivatives were much used in drug discovery and drug-making, such as for an anticancer. The formation of drug complexes can increase lipophilicity through chelation formation, and the drug action is significantly upward due to the effective permeability to the center. In another study, the alteration of the compound becomes the complex with metal will grow in its activity so recently we have synthesized the Bis-(4-(Tert-Butyl)-N-(Methylcarbamothioyl) Benzamide)-Iron (III) complex.  The synthesis of Fe (III) metal with the 4-(Tert-Butyl)-N-(Methylcarbamothioyl) Benzamide in ethanol by reflux at 75oC for 7 hours. Hot Stage Microscopy, UV-Visible Spectrophotometry Infrared Spectrophotometry, and Massa Spectrophotometry were used to characterize the complex. This study concerns representing, inferring, and predicting pharmacokinetics and toxicity and molecular docking complexes. The complex weight was 0.29469 g. Its purity has been tested using the melting point determination and has obtained its range was 113o-115oC. The Characteristics of Bis-(4-(Tert-Butyl)-N-(Methylcarbamothioyl) Benzamide)-Iron(III) complex have a maximum wavelength of 260,0 nm and provide absorption of Fe-O vibrations at wavenumbers 478,2 cm-1and 588 cm-1, and the m/z complex of spectrophotometry mass was 559,31. The molecular docking process was performed using AutodockTools-1.5.6 software. It showed that Bis-(4-(Tert-Butyl)-N-(Methylcarbamo-thioyl)Benzamide)-Iron(III) complex could interact with ribonucleotide reductase enzyme, and it has better interaction than the 4-(Tert-Butyl)-N-(Methylcarbamothioyl)Benzamide with the binding affinity energy (ΔG)of  -8,52 kcal/mole and the constant inhibition (Ki ) of 568,55 nM

    The Active Compound of Bangle Essential Oil as Cyclooxygenase-2 (Cox-2) Inhibitor: In Silico Approach

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    Fever is a condition where the body temperature rises above normal or more than 37o C and also tend to be an initial clinical manifestation of the use of antipyretic drugs thatcause toxicity such as on the liver due to prolonged usage. Particularly, the bangle (Zingiber purpureum Roxb.) is one of the Zingiberaceae plants that contain essential oils used for the treatment of fever. Therefore, this researchaimed to identify active compounds which have antipyreticspotential with the in silico approach. The simulation of molecular docking showed 1,4-naphthalenedione-2-ethyl-3-hydroxy was able to attach to the binding site of cyclooxygenase-2 (COX-2) and interact withmain residues that constituted the active cavity of COX-2. While the simulation of molecular dynamics suggested thatthe bound compound was stable at 4 ns, that is the time taken. The binding free energiesexpected by the MM-PBSA method indicated the 1,4-naphthalenedione-2-ethyl-3-hydroxy had a higher affinity than a native ligand (2-[(2,6-dichloro-3-methyl-phenyl)-amino] benzoic acid, JMS) and paracetamol. This suggested its capacity for advancing as a new COX-2 inhibitor

    The Virtual Screening of Flavonoid Derivatives on Progesterone, Estrogen, and HER-2 Receptor for Breast Cancer Treatment Candidate

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    Cancer is defined as a disease caused by progressive and abnormal cell proliferation in the body. This condition is caused by deoxyribonucleic acid (DNA) changes, which causes cells to lose their normal function. The aim of this study is to find that flavonoid compounds have a more stable interaction than tamoxifen as anti-cancer candidates. Research has been conducted in silico with molecular docking (AutodockTools-1.5.7) and molecular dynamics of 200 flavonoid compounds. Furthermore, pharmacokinetic parameters, toxicity, and the application of the Lipinski Rule of Five were investigated. Based on molecular docking results, the compounds eriocotrin, glabrol, kaempferitrin, linarin, and narirutin have more stable interactions with lower binding energy (ÔłćG) than tamoxifen. From the results of molecular docking, molecular dynamics, and pharmacokinetic studies, it is predicted that the kaempferitrin compound can be used as an anti-cancer candidate and does not cause toxicity through further research

    ISOLASI DAN MOLECULAR DOCKING SENYAWA 6,7-DIHIDRO-17-HIDROKSIERISOTRIN DARI DAUN DADAP BELENDUNG (Erythrina poeppigiana) TERHADAP AKTIVITAS SITOTOKSIK ANTIKANKER PAYUDARA MCF-7

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    Erythrina (Leguminose) memiliki jumlah alkaloid paling banyak jika dibandingkan dengan senyawa metabolit sekunder lainnya, sehingga tumbuhan Erythrina dikenal dengan sebutan alkaloid eritrina. Erythrina yang paling banyak tumbuh di Indonesia adalah E. poeppigiana. Tujuan penelitian ini adalah untuk mengungkapkan senyawa aktif antikanker payudara MCF-7 secara in silico yang terdapat di dalam daun E. poeppigiana. Alkaloid dipisahkan dan dimurnikan melalui tahapan ekstraksi, fraksinasi, pemisahanan dan pemurnian yang dipandu dengan uji Dragendorff, senyawa alkaloid yang diperoleh diuji antikanker secara in silico terhadap reseptor EGFR2 yang bekerja pada sel kanker payudara MCF-7 menggunakan program ArgusLab dengan pembanding canertinib dan parameter yang diukur adalah energi bebas Gibbs ikatan (ΔG) dan konstanta inhibisi (Ki). Hasil dari penelitian ini diperoleh senyawa alkaloid golongan isokuinolin yakni 6,7-dihidro-17-hidroksierisotrin. Senyawa 6,7-dihidro-17-hidroksierisotrin diprediksi mempunyai aktivitas sitotoksik terhadap sel kanker payudara MCF-7 dengan nilai ΔG (Kcal/mol) dan Ki (nM) masing-masing sebesar -8,11457 dan 1,12.10-6. Sehingga dapat disimpulkan bahwa tumbuhan E. poeppigiana mempunyai potensi sebagai bahan dasar obat herbal antikanker payudara

    PENGARUH PERBEDAAN PELARUT TERHADAP KADAR FENOL TOTAL DAN AKTIVITAS ANTIOKSIDAN EKSTRAK GADUNG (Dioscorea hispida Dennst.)

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    ABSTRACTGadung tuber (Dioscorea hispida Dennst.) are known to have phenolic compound which has potential as antioxydant agent. From previous study, the extraction of phenolic compounds from gadung tuber was carried out by maceration using methanol and this has never been done using other polar solvents such as ethanol and water. The purpose of this study was to determine the effect of maceration solvents on total phenol content and antioxidant activity of gadung tuber. Extraction was carried out by maceration technique using 3 types of polar solvents, methanol 90%, ethanol 96% and water. Analysis of total phenol content of the extract was carried out using a UV-VIS spectrophotometer based on the reduction reaction of Folin-Ciocalteu reagent and the antioxidant activity test was carried out using the DPPH (2.2-diphenyl-1-picrylhydrazyl) method. The results showed that the methanol extract had the highest total phenol content of 2.782 ± 0.389 g GAE/100 g with the lowest IC50 value of 13.399 ppm. The ethanol extract and water extract had the total phenol content 1.963 ± 0.134 g GAE/100 g and 2.018 ± 0.015 g GAE/100 g, respectively, while the IC50 value of etanol extract and water extract were 26.706 ppm dan 18.605 ppm. All extracts in this study had a very strong antioxidant activity with an IC50 value less than 50 ppm.Keywords: antioxidant, extraction, phenol, gadung ABSTRAKUmbi gadung (Dioscorea hispida Dennst) telah diketahui memiliki senyawa fenol yang berpotensi sebagai antioksidan. Ekstraksi senyawa fenol dari umbi gadung pada penelitian terdahulu dilakukan dengan cara maserasi menggunakan pelarut metanol, namun belum pernah dilakukan dengan menggunakan pelarut polar lain seperti etanol dan air. Tujuan penelitian ini adalah untuk mengetahui pengaruh perbedaan pelarut maserasi terhadap kadar fenol total dan aktivitas antioksidan umbi gadung. Ekstraksi dilakukan dengan teknik maserasi menggunakan 3 jenis pelarut polar yaitu metanol 90%, etanol 96% dan air. Analisis kadar fenol total ekstrak dilakukan dengan spektrofotometer UV-VIS berdasarkan reaksi reduksi pereaksi Folin-Ciocalteu dan uji aktivitas antioksidan dilakukan dengan metode DPPH (2,2-difenil-1-pikrilhidrazil). Hasil penelitian menunjukkan bahwa ekstrak metanol memiliki kadar fenol total tertinggi sebanyak 2,782 ± 0,389 g GAE/100 g dengan nilai IC50 terendah yaitu 13,399 ppm. Kadar fenol total ekstrak etanol dan ekstrak air masing-masing adalah 1,963 ± 0,134 g GAE/100 g dan 2,018 ± 0,015 g GAE/100 g, sedangkan untuk nilai IC50 untuk ekstral etanol dan ekstrak air masing-masing adalah 26,706 ppm dan 18,605 ppm. Semua ekstrak pada penelitian ini memiliki aktivitas antioksidan kategori sangat kuat dengan nilai IC50 kurang dari 50 ppm.Kata kunci: antioksidan, ekstraksi, fenol, gadun
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