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Molekul: Jurnal Ilmiah Kimia

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Published by Universitas Jenderal Soedirman

ISSN : 19079761 EISSN : 25030310 DOI : -

Core Subject : Science, Engineering,

Chemical Engineering, Chemistry & Bioengineering Chemistry

MOLEKUL is a peer-reviewed journal of chemistry published by the Department of Chemistry, Faculty of Mathematics and Natural Sciences, Jenderal Soedirman University, Indonesia. Publishing frequency 2 issues per year, on May and November. This Journal encompasses all branches of chemistry and its sub-disciplines including Pharmaceutical, Biological activities of Synthetic Drugs, Environmental Chemistry, Biochemistry, Polymer Chemistry, Petroleum Chemistry, and Agricultural Chemistry.

Arjuna Subject : -

Articles 9 Documents

Search results for , issue "Vol 15, No 1 (2020)" : 9 Documents clear

SPECTROPHOTOMETRIC ANALYSIS OF DESLORATADINE MULTICOMPONENT CRYSTAL FORMULATION: COMPARISON OF CONVENTIONAL METHODS AND CHEMOMETRIC ANALYSIS Ainurofiq, Ahmad; Choiri, Syaiful
Molekul Vol 15, No 1 (2020)
Publisher : Universitas Jenderal Soedirman

Multicomponent crystal (MCC) formulation consists of drug and co-former that spectrophotometrically has an interference each other. The aim of this research was to evaluate and develop the analytical method to obtain a fast, cheap, efficient, and adequate method to estimate desloratadine (DES) in MCC formulation using three different methods. Single wavelength calibration model was constructed at 290 nm, multiple component equations was obtained from 273 nm and 283 nm, and multivariate analysis consists of PLS and PCA, a chemo-metric based, assisted the model selection and model calibration. Single wavelength method and multivariate analysis model had been fully validated i.e. range, specificity, accuracy, precision, limit of detection, and limit of quantification. A multivariate analysis had more adequate ability to estimate the DES and co-former in the MCC formulation.Keywords: Desloratadine, multicomponent crystal, multivariate, PLS

Protective Effect of Ipomoea batatas L Leaves Extract on Histology of Pancreatic Langerhans Islet and Beta Cell Insulin Expression of Rats Induced by Streptozotocin Dody Novrial; Soebowo Soebowo; Parno Widjojo
Molekul Vol 15, No 1 (2020)
Publisher : Universitas Jenderal Soedirman

Sweet potato (Ipomoea batatas L) leaf is one of well known vegetables among Indonesian people. It is also often used as traditional medicine for diabetes mellitus. This research aimed to investigate the protective effect of I. batatas L leaves extract on the pancreas of IDDM animal model. Twenty five male Sprague-Dawley rats were divided into 3 treatment groups, and 2 control groups. Streptozotocin (STZ) was injected at multiple low doses (40 mg/kg BW) intraperitoneally for 5 consecutive days, I. batatas L leaves extract (doses 0.25, 0.8, and 2.5 g/ kg BW) were administered for 14 days after the first STZ injection. Fasting blood glucose was analyzed after complete STZ induction (day 6), and after 14 days treatment. At the end of the study, rats were terminated, and pancreas were removed for histological examination and immunohistochemical procedure using anti-insulin antibody. Diabetic rats treated with 2.5 g/kg BW I. batatas L leaves extract showed lowest fasting blood glucose among treatment groups, and had approximately 50% normal Langerhans islets with functional beta cells. These results suggest that I. batatas L leaves extract has anti diabetic activity through its protection effect on the pancreas.

Design of New 2,4-Substituted Furo [3,2-B] Indole Derivatives as Anticancer Compounds Using Quantitative Structure-Activity Relationship (QSAR) and Molecular Docking Jufrizal Syahri; Nurul Hidayah; Rahmiwati Hilma; Beta Achromi Nurohmah; Emmy Yuanita
Molekul Vol 15, No 1 (2020)
Publisher : Universitas Jenderal Soedirman

This study aimed to propose new indole derivatives as anticancer through Quantitative Structure-Activity Relationship (QSAR) and molecular docking method. The best predicted anticancer activity of indole derivatives was recommended based on the QSAR equation. A data set consist of 18 indole derivatives from literature with anticancer activity against the A498 cell line was used to generate a QSAR model equation. The data set was divided randomly into training (14) and test (4) set compounds. The structure of indole compound was optimized first using AM1 semi-empirical methods, and the descriptors involved were analyzed using Multiple Linear Regression (MLR). The best QSAR equation obtained was Log IC50 = 65.596 (qC2) + 366.764 (qC6) – 92.742 (qC11) + 503.297 (HOMO) – 492.550 (LUMO) – 76.966. Based on the QSAR model, varying electron-withdrawing groups in C2 and C6 atom, as well as adding electron-donating groups in C11 were proposed could increase the anticancer activity of the indole derivatives. The QSAR analysis showed that compound 15 has the best predicted anticancer activity, supported by molecular docking results that showed hydrogen bond interaction with essential amino acids to build anticancer activity such as MET769, THR830, and THR766 residues.

Reduction of Graphene Oxide: Controlled Synthesis by Microwave Irradiation Endah Fitriani Rahayu; Bunnari Bunnari; Andri Hardyansyah
Molekul Vol 15, No 1 (2020)
Publisher : Universitas Jenderal Soedirman

Graphene has been attracting enormous attention in the scientific community because of its unique properties and use for various applications. Graphene has been synthesized in various ways, one of which is the graphite oxidation method to form graphene oxide (GO). Reduction of GO to reduced graphene oxide (RGO) is necessary to recover the conjugated network and electrical conductivity, and for this research, this was achieved using microwave irradiation. Microwave synthesis provides an alternative method, saving more time in the reaction process. In this research, graphene was synthesized from graphite by the modified Hummers method and microwave irradiation. This research proves that graphene can be synthesized with a high-quality structure and in a shorter amount of time using microwave irradiation to reduce GO. With longer microwave exposure, less GO is present in the sample, as indicated by the absence of an n–π* electronic transition in the absorbance graph and the absence of oxide groups in the Fourier-Transform Infra-Red spectrum. With increasing microwave power, the reduction process is short-lived, and better quality RGO is produced. This study shows that the new reduction process occurs within 20 minutes with a power of 450 and 630 watts, but at 900 watts, the reduction of GO occurs within 10 minutes, as shown by UV-Vis and FTIR spectra.

Backmatter (Instruction for author and back cover) Amin Fatoni
Molekul Vol 15, No 1 (2020)
Publisher : Universitas Jenderal Soedirman

Backmatter (Instruction for author and back cover)

Synthesis and Anticancer Activity of 2’-hydroxy-2-bromo-4,5-dimetoxychalcone Against Breast Cancer (MCF-7) Cell Line Retno Aliyatul Fikroh; Sabirin Matsjeh; Chairil Anwar
Molekul Vol 15, No 1 (2020)
Publisher : Universitas Jenderal Soedirman

Breast cancer is one of cancer causes of death in woman. Chemotherapy is one cancer treatment give toxic effects on normal cells. Alternative of cancer treatment by using flavonoid derivative have potent anticancer to reduce side effects of cancer. Chalcone is family of flavonoid that have biological activity. Chalcone derivatives have potential compound as anticancer agent. Chalcone with the presence halogen, metoxy group in ring B is know to inhibit cancer cells. The aims of this research were to synthesize chalcone derivate with bromo, methoxy, and hyroxy group in ring chalcone and to determine the anticancer activity of chalcone derivative. The chalcone derivative was synthesized from 2-hydroxyacetophenone with 2-bromo-4,5-dimethoxybenzaldehyde by Claisen-Schmidt reaction. In vitro cytotoxicity against breast cancer cell was tested by MTT assay method. The compound of 2’-hydroxy-2-bromo-4,5-dimethoxychalcone was yield in 78% as yellow solid. The IC50 of 2’-hydroxy-2-bromo-4,5-dimethoxychalcone was 42,19 µg/mL as a moderate activity to inhibiting breast cancer cell line. Cytotoxity of docorubicin againts breast cancer cell line more active than 2’-hydroxy-2-bromo-4,5-dimethoxychalcone with IC50 10,61 µg/mL. Doxorubicin as drug standar had better anticancer activity than 2’-hydroxy-2-bromo-4,5-dimethoxychalcone. Based on the IC50 value, the compound 2’-hydroxy-2-bromo-4,5-dimethoxychalcone has a moderate activity towards breast cancer cell lines. This study can recommend as candidate for anticancer againts breast cancer cell lines.

Synthesis, Antiproliferative Activity and Molecular Docking Studies of 1,3,5-Triaryl Pyrazole Compound as Estrogen α Receptor Inhibitor Targeting MCF-7 Cells Line Noval Herfindo; Riska Prasetiawati; Daniel Sialagan; Neni Frimayanti; Adel Zamri
Molekul Vol 15, No 1 (2020)
Publisher : Universitas Jenderal Soedirman

This research has been successfully synthesized three compounds of 1,3,5-triaryl pyrazole derivatives by two steps reaction. Firstly, pyrazoline (4a-c) compound was obtained by one-pot reaction of aromatic ketones, aldehyde and hydrazine in basic condition. Then, pyrazole (5a-c) compound was obtained by oxidative aromatization of compound 4 in the presense of acetic acid. Chemical structure of predicted molecules was confirmed by FTIR, NMR and HRMS spectroscopy data analysis. Antiproliferative activity of compound 5a-c were evaluated by in vitro assay against MCF-7 cells line and molecular docking simulation against ERα (PDB ID: 3ERT) using MOE 2019. Biological evaluation result showed that pyrazole compounds had weak antiproliferative activity against MCF-7 cells with IC50 were > 1000 µM, whereas the docking studies agrees the result.

Frontmatter (Front Cover, Editorial Team, Preface and Table of Contents) Amin Fatoni
Molekul Vol 15, No 1 (2020)
Publisher : Universitas Jenderal Soedirman

Frontmatter (Front Cover, Editorial Team, Preface and Table of Contents)

Preparation of Polycrystalline Silicon from Rice Husk by Thermal Decomposition and Aluminothermic Reduction Ahmad Nuruddin; Brian Yuliarto; Adhitya Gandaryus Saputro; Badruzaman Badruzaman; Aditianto Ramelan
Molekul Vol 15, No 1 (2020)
Publisher : Universitas Jenderal Soedirman

Polycrystalline silicon was extracted from rice husk by thermal decomposition and aluminothermic methods. Rice husk was thermally decomposed under various heat treatments and acid purifications. High purity silica of 99.81% was obtained by subsequent rice husk washing, pressure cooking in mixed chloride acid peroxide solution, and burning at 500oC for one hour. Aluminothermic reduction of silica was conducted at various calcination temperatures. It is found that 78.6% of silica was converted to silicon for calcination temperature of 800oC. Leaching the reduction product with strong hydrochloric and hydrofluoric acids produced silicon polycrystalline with a purity of 99.91%.

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Amin Fatoni

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Jl. Dr. Soeparno No.61 Karangwangkal, Purwokerto, Jawa Tengah 53

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Kab. banyumas,

Jawa tengah

INDONESIA

Abstract

Abstract

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Abstract

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Amin Fatoni

Contact Email aminfatoni@unsoed.ac.id

Phone -

Journal Mail Official j.molekul@gmail.com

Editorial Address Jl. Dr. Soeparno No.61 Karangwangkal, Purwokerto, Jawa Tengah 53

Location Kab. banyumas, Jawa tengah INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Amin Fatoni

Contact Email
aminfatoni@unsoed.ac.id

Phone
-

Journal Mail Official
j.molekul@gmail.com

Editorial Address
Jl. Dr. Soeparno No.61 Karangwangkal, Purwokerto, Jawa Tengah 53

Location
Kab. banyumas,

Jawa tengah

INDONESIA