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Studi In Silico dan Pengaruh Gugus Metoksi pada Hasil Sintesis Analog Kalkon terhadap Inhibisi Enzim α-Glukosidase Rahma Dona; Mustika Furi; Neni Frimayanti; Adel Zamri; Nahdiah Nahdiah
Jurnal Sains Farmasi & Klinis Vol 9, No 1 (2022): J Sains Farm Klin 9(1), April 2022
Publisher : Fakultas Farmasi Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1937.899 KB) | DOI: 10.25077/jsfk.9.1.12-23.2022

Abstract

Kalkon (1,3-diaril-2-propen-1-on) merupakan golongan flavonoid yang memiliki banyak aktivitas salah satunya sebagai antidiabetes. Pada penelitian ini dilakukan sintesis tiga senyawa analog kalkon yaitu 2’-hidroksi-2-metoksi-kalkon (Kalkon1), 2’-hidroksi-3-metoksi-kalkon (Kalkon2) dan 2’-hidroksi-4-metoksi-kalkon (Kalkon3) dan serta dilakukan pengujian karakterisasi nya. Sintesis analog kalkon  dilakukan dengan metode irradiasi microwave menggunakan  katalis KOH, pelarut etanol dan PEG 400. Struktur setiap produk dikarakterisasi melalui spektroskopi UV-Vis, FTIR dan 1H NMR, menunjukkan bahwa ketiga senyawa analog kalkon hasil sintesis memiliki struktur sesuai dengan yang diharapkan, dengan hasil rendemen yaitu 91,53% (Kalkon1), 79,01% (Kalkon 2) dan 77,48% Kalkon 3. Berdasarkan studi in silico dari parameter nilai energi bebas ikatan didapatkan bahwa senyawa Kalkon 3 memiliki nilai energi bebas ikatan terkecil yaitu sebesar -8,8 kcal/mol dibandingkan senyawa Kalkon1 dan Kalkon2 yaitu sebesar -7,5 kcal/mol, -6,8 kcal/mol. Untuk  parameter  kecocokan asam amino dengan kontrol positif (akarbose), hanya senyawa Kalkon1 yang memiliki kecocokan dengan kontrol positif (akarbose) sedangkan untuk parameter ikatan hidrogen didapatkan bahwa semua senyawa uji tidak menunjukkan adanya interaksi berupa ikatan hidrogen antara ligand dan reseptor. Hasil ini menunjukkan senyawa Kalkon1, Kalkon 2 dan Kalkon 3 diperkirakan tidak aktif sebagai inhibitor enzim α-glukosidase.
AKTIVITAS ANTIHIPERURISEMIA EKTRAK ETANOL DAUN PANDAN WANGI (Pandanus amaryllifolius Roxb.) PADA MENCIT JANTAN HIPERURISEMIA Novia Sinata; Rahma Dona; Muthui’ah Muthui’ah
Jurnal Ilmiah Farmako Bahari Vol 13, No 2 (2022): Jurnal Ilmiah Farmako Bahari
Publisher : Fakultas MIPA Universitas Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52434/jfb.v13i2.1223

Abstract

Hiperurisemia adalah  peningkatan  kadar  asam  urat darah di atas normal. Hiperurisemia  terjadi  akibat  meningkatnya  produksi  atau menurunnya  pembuangan  asam  urat,  atau kombinasi  keduanya. Asam urat merupakan hasil akhir metabolisme purin dalam tubuh. Penyakit gout merupakan gangguan inflamasi akut yang ditandai dengan pembengkakan pada sendi disebabkan kadar asam urat yang tinggi (hiperurisemia). Salah satu tanaman yang dapat digunakan sebagai obat tradisional untuk hiperurisemia adalah daun pandan wangi (Pandanus amaryllifolius Roxb.). Tujuan penelitian ini untuk mengetahui aktivitas antihiperurisemia ekstrak etanol dari daun pandan wangi terhadap kadar asam urat darah mencit jantan hiperurisemia.Tiga puluh ekor mencit dibagi menjadi enam kelompok yaitu kelompok kontrol normal, kelompok kontrol negative (diberi jus hati sapi 0,6 ml/20gBB), kelompok kontrol positif (alopurinol 13 mg/kgBB), kelompok dosis 200 mg/kgBB, kelompok dosis 400 mg/kgBB dan kelompok dosis 800 mg/kgBB.Penginduksian hiperurisemia dilakukan dengan menggunakan Makanan Diet Purin tinggi (MDPT) jus hati sapi segar. Pemeriksaan kadar asam urat menggunakan metode Point of Care Testing (POCT) dengan menggunakan alat digital EasyTouch®GCU. Hasil yang didapat ekstrak etanol dari daun pandan wangi (Pandanus amaryllifolius Roxb.) dosis 200mg/kgBB, 400mg/kgBBdan 800 mg/kgBB dapat menurunkan kadar asam urat darah pada mencit putih jantan secara signifikan (P<0,05). Potensi ekstrak etanol daun pandan wangi dosis 400 mg/kgbb dan 800 mg/kgBB setara dengan allopurinol dosis 13 mg/kgBB dalam menurunkan kadar asam urat mencit hiperurisemia (P>0,05).
Sintesis, Karakterisasi Struktur, dan Kajian Molecular Docking Senyawa Turunan 4’-Metoksi Flavonol sebagai Antagonis Reseptor Estrogen Alpha (ER-a) pada Kanker Payudara Ihsan Ikhtiarudin; Rahma Dona; Neni Frimayanti; Rahayu Utami; Nurul Susianti; Abdi Wira Septama
Jurnal Riset Kimia Vol. 13 No. 2 (2022): September
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v13i2.553

Abstract

A long period of drug administration in breast cancer chemotherapy can cause various side effects. These situations encourage researchers to search for and develop alternative anticancer drugs through various approaches. This study aimed to synthesize a flavonol derivative (TF4) and to study the interactions of the synthesized compound with ER-α as one of the targeted receptors in breast cancer treatment. The synthesis was carried out using the stirring method and the study of interactions of TF4 with ER-α was performed through molecular docking against ER-α crystal structures bound to an antagonist (PDB ID: 3ERT) and agonist (PDB ID: 1A52). The synthesis of TF4 produced crude product in 58 % yield and pure product in 6 % yield. The structure of TF4 was confirmed by spectroscopic analyses including UV, FT-IR, 1D, and 2D NMR. The docking results showed that the TF4 does not form any conventional hydrogen bond with ER-α. However, it can form carbon-hydrogen (C--H) bonds and van der Walls interactions with several important residues on the active site of ER-α. In addition, the binding free energy values of TF4 (-9.14 and -9.50 kcal/mol) are more negative than estradiol (E2) as one of the natural ligands for ER-α. Thus, it can be estimated that TF4 can be bounded easier on the active site of ER-α than its natural ligand. It may presume that it can act as an estrogen antagonist because of the similarity in interactions and binding poses compared to TAM, TOR, dan 4-OHT as reference drug molecules.
S SINTESIS DAN UJI AKTIVITAS ANTIBAKTERI SENYAWA 3ꞌ-BROMO-4-METOKSI KALKON TERHADAP BAKTERI Staphylococcus aureus DAN Escherichia coli Rahma Dona; Haiyul Fadhli; Adel Zamri; Winda Tria Safitri; Abdi Wira Septama
Jurnal Penelitian Farmasi Indonesia Vol. 11 No. 2 (2022): JPFI
Publisher : Lembaga Penelitian Sekolah Tinggi Ilmu Farmasi Jl. Kamboja Simpang Baru-Panam, Pekanbaru, Riau 28293 Telp. (0761) 588006, Fax. (0761) 588007 e-mail: editor-jpfi@stifar-riau.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51887/jpfi.v11i2.1547

Abstract

Chalcone is a flavonoid derivative that has a variety of interesting biological activities. One of the compounds suspected of being an antibacterial agent is chalcone. The properties of chalcone compounds depend on the substituents that depend on the two aromatic rings, such as Cl, Br, OH groups and so on. The purpose of this study was to synthesize chalcone analogue compounds and determine the potential of these analog compounds as antibiotics. In this research, a chalcone analogue compound has been successfully synthesized, namely 3ꞌ-Bromo-4-methoxy-chalcone through the stirring method using KOH catalyst, ethanol solvent. The results of the synthesis carried out by recrystallization and the yield obtained were 64 %. Identification of compounds that have been carried out by TLC test, melting point, and HPLC analysis. The structure of the compound was characterized by UV-Vis spectroscopy, FTIR and 1H NMR, indicating that the analogue chalcone compound has a structure as expected. Testing the activity of chalcone analogue compounds was carried out on Staphylococcus aureus and Escherichia coli at a concentration of 1%, 5%, 10% and 20% test solutions. The test results showed that the antibacterial activity of the compound 3ꞌ-Bromo-4-methoxy-chalcone was categorized as weak.
Qualitative and Quantitative Analysis of Hydroquinone in Face Cream with TLC and HPLC Methods Dona, Rahma; Selvia, Selvia
Jurnal MIDPRO Vol 12 No 2 (2020): JURNAL MIDPRO
Publisher : Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/md.v12i2.175

Abstract

Hydroquinone is a chemical compound widely used in cosmetics that acts as a removal of black spots/spots on the face. The use of hydroquinone in cosmetics, according to BPOM regulations, is only allowed with a maximum level of 2%. Excessive use of hydroquinone can cause pigment abnormalities in the face. The materials used in this study were hydroquinone BPFI, 96% ethanol, absolute ethanol, sodium sulfate, methanol (HPLC grade), aquadest, ethyl acetate, and face cream samples (X and Y). Qualitative and quantitative analysis of hydroquinone content in both face cream samples was carried out by TLC and HPLC methods. The results of the qualitative analysis by TLC on both face cream samples (X and Y creams) showed that both samples had the same Rf value 1as the standard hydroquinone Rf while the HPLC chromatogram results of both samples had the same retention time as the standard hydroquinone. Simultaneously, the results of quantitative analysis on cream X samples contained hydroquinone of 3.06% and Y cream of 4.15%. From these results, both face cream samples positive contained hydroquinone with levels> 2%.
Sintesis C-dots dari Gula Pasir dan Asam Sitrat untuk Deteksi Logam Berat Yanto, Yanto; Dona, Rahma; Ikhtiarudin, Ihsan
Photon: Jurnal Sain dan Kesehatan Vol. 14 No. 1 (2023): Jurnal Photon
Publisher : LPPM Universitas Muhammadiyah Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jp.v14i1.4214

Abstract

Heavy metal contamination is one of the problems in pharmaceutical products. Carbon dots are a practical and economical method of heavy metal detection to reduce heavy metal contamination in pharmaceutical products. Carbon dots have been successfully synthesized by microwave irradiation from sugar table doped with urea fertilizer (CD-GU) and citric acid doped with urea fertilizer (CD-AU). The success of the synthesis of carbon dots can be seen from their properties that produce a blue to green luminescence when excited with a 405 nm laser and an orange to red luminescence when excited with a 532 nm laser. When excited with a 405 nm laser, CD-GU produces a strong light blue luminescence, while CD-AU produces a strong green luminescence. CD-GU and CD-AU also exhibit orange luminescence when excited with a 532 nm laser. The intensity of luminescence of carbon dots will decrease when interacting with heavy metals so that it can be applied for heavy metal detection. The results of this study revealed that CD-GU and CD-AU can be used to detect heavy metals.
UJI VALIDASI METODE DAN PENETAPAN KADAR RANITIDIN DALAM SEDIAAN TABLET SECARA SPEKTROFOTOMETRI UV: METHOD VALIDATION TEST AND DETERMINATION OF RANITIDINE CONTENT IN TABLET PREPARATIONS BY UV SPECTROPHOTOMETRY Dona, Rahma; Ningrum, Tilar Eka Widia; Nasution, Musyirna Rahmah; Fernando, Armon; Syahbandi, Ilham; Milianty, Jesy
JFL : Jurnal Farmasi Lampung Vol. 13 No. 2 (2024): JFL : Jurnal Farmasi Lampung
Publisher : Program Studi Farmasi-Fakultas Matematika dan Ilmu Pengetahuan Alam-Universitas Tulang Bawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37090/jfl.v13i2.1805

Abstract

This study aims to determine the levels of ranitidine in generic and trade name tablet preparations by UV spectrophotometry. Based on the results obtained linearity value of r = 0.9999 with limit of detection (LOD) 0.1667 ppm and limit of quantitation (LOQ) 0.5558 ppm. Precision obtained RSD results of 0.641% and in accuracy obtained % recovery at 3 concentrations of 9, 12 and 15 ppm respectively 101.05; 100.63; and 100.33%. The results of the determination of levels in ranitidine tablet preparations with five generic tablets and five trade name tablets have met the requirements for levels in medicinal preparations for ranitidine tablet preparations according to the Indonesian Pharmacopoeia VI Edition, which contains ranitidine not less than 90.0% and not more than 110.0%. It can be concluded that the UV spectrophotometric method used in the study has met the parameters set in the validation test so that this method can be applied to the analysis of determining ranitidine levels in a laboratory. Keywords:  Ranitidine, UV Spectrophotometry, Method validation
Studi In Silico, Sintesis, dan Uji Sitotoksik Senyawa P-Metoksi Kalkon terhadap Sel Kanker Payudara MCF-7 Dona, Rahma; Frimayanti, Neni; Ikhtiarudin, Ihsan; Iskandar, Benni; Maulana, Fikri; Silalahi, Nova Tantri
JSFK (Jurnal Sains Farmasi & Klinis) Vol 6 No 3 (2019): J Sains Farm Klin 6(3), Desember 2019
Publisher : Fakultas Farmasi Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jsfk.6.3.243-249.2019

Abstract

Kalkon (1,3-difenil-2-propene-1-on) adalah salah satu senyawa golongan flavonoid yang memiliki beragam aktivitas biologis diantaranya sebagai antikanker. Penelitian ini bertujuan untuk mengetahui  efek sitotoksik analog kalkon (E)-3-(4-metoksifenil)-1-fenilprop-2-en-1-on dengan menggunakan teknik komputerisasi (docking), senyawa analog kalkon tersebut disintesis menggunakan reaksi kondensasi Claisen-Schmidt dengan katalis basa secara metode iradiasi gelombang mikro. Studi in silico ini dilakukan antara senyawa kalkon dengan  protein dengan kode PDB ID P521 dengan menggunakan program AutoDock Vina, sedangkan uji aktivitas sitotoksik senyawa kalkon dilakukan terhadap sel kanker payudara MCF-7 menggunakan metode WST-8. Berdasarkan hasil docking, senyawa kalkon (E)-3-(4-metoksifenil)-1-fenilprop-2-en-1-on memiliki potensi sebagai penghambat aktif terhadap sel kanker payudara MCF-7 ditandai dengan senyawa ini memiliki nilai energi bebas ikatan yang lebih kecil dibandingkan doxorubicin sebagai pembanding; memiliki 4 persamaan asam amino dengan doxorubicin dimana interaksi yang terbentuk terdiri dari 4 jenis ikatan yaitu ikatan hidrogen, ikatan van der Waals, ikatan pi-sigma dan ikatan pi –alkil.  Dari hasil uji sitotoksik antara sel kanker MCF-7 dan senyawa kalkon diperoleh nilai IC50 sebesar 48,18 µg/mL. Dari penelitian tersebut dapat disimpulkan bahwa senyawa analog kalkon (E)-3-(4-metoksifenil)-1-fenilprop-2-en-1-on dapat berpotensi sebagai inhibitor terhadap sel kanker payudara MCF-7
Studi In Silico dan Pengaruh Gugus Metoksi pada Hasil Sintesis Analog Kalkon terhadap Inhibisi Enzim α-Glukosidase Dona, Rahma; Furi, Mustika; Frimayanti, Neni; Zamri, Adel; Nahdiah, Nahdiah
JSFK (Jurnal Sains Farmasi & Klinis) Vol 9 No 1 (2022): J Sains Farm Klin 9(1), April 2022
Publisher : Fakultas Farmasi Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jsfk.9.1.12-23.2022

Abstract

Kalkon (1,3-diaril-2-propen-1-on) merupakan golongan flavonoid yang memiliki banyak aktivitas salah satunya sebagai antidiabetes. Pada penelitian ini dilakukan sintesis tiga senyawa analog kalkon yaitu 2’-hidroksi-2-metoksi-kalkon (Kalkon1), 2’-hidroksi-3-metoksi-kalkon (Kalkon2) dan 2’-hidroksi-4-metoksi-kalkon (Kalkon3) dan serta dilakukan pengujian karakterisasi nya. Sintesis analog kalkon  dilakukan dengan metode irradiasi microwave menggunakan  katalis KOH, pelarut etanol dan PEG 400. Struktur setiap produk dikarakterisasi melalui spektroskopi UV-Vis, FTIR dan 1H NMR, menunjukkan bahwa ketiga senyawa analog kalkon hasil sintesis memiliki struktur sesuai dengan yang diharapkan, dengan hasil rendemen yaitu 91,53% (Kalkon1), 79,01% (Kalkon 2) dan 77,48% Kalkon 3. Berdasarkan studi in silico dari parameter nilai energi bebas ikatan didapatkan bahwa senyawa Kalkon 3 memiliki nilai energi bebas ikatan terkecil yaitu sebesar -8,8 kcal/mol dibandingkan senyawa Kalkon1 dan Kalkon2 yaitu sebesar -7,5 kcal/mol, -6,8 kcal/mol. Untuk  parameter  kecocokan asam amino dengan kontrol positif (akarbose), hanya senyawa Kalkon1 yang memiliki kecocokan dengan kontrol positif (akarbose) sedangkan untuk parameter ikatan hidrogen didapatkan bahwa semua senyawa uji tidak menunjukkan adanya interaksi berupa ikatan hidrogen antara ligand dan reseptor. Hasil ini menunjukkan senyawa Kalkon1, Kalkon 2 dan Kalkon 3 diperkirakan tidak aktif sebagai inhibitor enzim α-glukosidase.
Synthesis and In Vitro Antimalarial Activity of Amino Chalcone Derivatives Compounds Through Inhibition of Heme Polymerization Dona, Rahma; Jasril; Hendra, Rudi; Frimayanti, Neni
JSFK (Jurnal Sains Farmasi & Klinis) Vol 11 No 2 (2024): J Sains Farm Klin 11(2), August 2024
Publisher : Fakultas Farmasi Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jsfk.11.2.127-135.2024

Abstract

This study aims to investigate the potential of chalcone derivatives as antimalarial agents. The structure of the  chalcone derivatives was designed by inserting amino substituents on acetophenone and methoxy variants on benzaldehyde to  produce three amino chalcone derivatives (C1, C2, and C3). The synthesis was carried out by carrying out the Claisen-Schmidt  condensation reaction with NaOH 40% as catalyst, resulting in compound yields ranging from 66% - 83%. The structure of the  three compounds was determined by FTIR, MS, and 1H-NMR spectroscopy techniques, which confirmed that the compounds  had structures that were in line with the desired molecular structure. The antimalarial activity test was carried out by inhibiting  the heme polymerization process into hemozoin (β-hematin) using hydroxychloroquine sulfate as a positive control. Absorption  measurements were carried out at two different wavelengths, namely 415 nm and 630 nm. The results of the IC50 antimalarial  activity of the three compounds (C1, C2, C3) were obtained respectively at 227.61; 115.18; 260.01 µg/mL and positive control of  184.98 µg/mL. From these results, it was found that compound C2 showed better antimalarial activity compared to the other two  compounds and positive control.