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All Journal Indonesian Journal of Chemistry Indonesian Journal of Chemical Science and Technology Jurnal Pijar MIPA
Rosyiidah, Nur Anisa
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Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Materials Science & Nanotechnology Mathematics Physics

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Potential Analysis of Quercetin and Its Derivatives as Inhibitors of Hendra Virus (HeV) Rosyiidah, Nur Anisa; Setiarso, Pirim; Sanjaya, I Gusti Made
Indonesian Journal of Chemical Science and Technology (IJCST) Vol 7, No 1 (2024): JANUARY 2024
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/ijcst.v7i1.56448

Abstract

This study aims to determine the inhibitory potential of quercetin and its derivatives on the activity of Hendra virus (HeV) 6BK6 protein with its comparator N-Acetyl-D-[1-13C] Glucosamine. This research was carried out using the molecular docking method in order to obtain information related to binding affinity values, inhibition constants, and amino acid residues in the ligand-receptor hydrogen bonds. It was found that the compound quercetin 3-O-xyloside had the lowest binding affinity among the other compounds, namely -6.92 kcal/mol with an inhibition constant of 8.44 µM. In addition, there are four types of amino acid residues in the ligand-receptor hydrogen bonds including ASP304 (1,90 Å), SER301 (2,47 Å), ARG191 (3,18 Å), and MET188 (4.34 Å). In this case it can be concluded that the compound quercetin 3-O-xyloside has been shown to have the potential to inhibit the activity of the HeV 6BK6 protein.
Nano Titanium(IV) Oxide Modified Carbon Paste Electrode for Analysis of Butylated Hydroxytoluene Concentration in Lotion by Cyclic Voltammetry Rosyiidah, Nur Anisa; Setiarso, Pirim
Indonesian Journal of Chemistry Vol 25, No 4 (2025)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.87398

Abstract

This research focuses on the manufacture and application of TiO2 NPs modified carbon paste electrodes (TiO2 NPs-CPE) to analyze butylated hydroxytoluene (BHT) concentration in lotions by cyclic voltammetry. This study aimed to determine the best composition of TiO2 NPs-CPE, optimal addition of phosphate buffer pH, application of deposition time, and optimal scan rate by cyclic voltammetry. BHT solution was used to determine the electrode with the best conditions so that an optimal voltammogram was obtained at a composition of 3:5:2 electrode (carbon:TiO2 NPs:paraffin oil), phosphate buffer pH 8, deposition time of 25 s, and scan rate of 100 mV s−1. Obtaining BHT levels of samples A, B, and C with TiO2 NPs-CPE by cyclic voltammetry were 0.4686, 0.48029, and 0.39044%, while the concentration of samples in HPLC were 0.46873, 0.48111, and 0.39191%. A significance value of 0.985 (> 0.05) was obtained, meaning there was no significant difference in the results of measuring the concentration of BHT in the lotion samples.
Electrochemical analysis of butylated hydroxytoluene Rosyiidah, Nur Anisa; Pirim Setiarso
Jurnal Pijar Mipa Vol. 18 No. 6 (2023): November 2023
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v18i6.5858

Abstract

Electrochemical analysis has carried out butylated hydroxytoluene (BHT) measurements. Cyclic voltammetry is used in this research as a qualitative-quantitative analysis of oxidation and reduction reaction processes, adsorption processes on electrode surfaces, and chemical electron transfer mechanisms.  This research aims to determine the optimum deposition time and scan rate in cyclic voltammetry, the BHT standard equation, the limit of detection, and the recovery percentage.  In this research, a deposition time of 25 seconds produces the highest current response of 3.89672 x 10-4 Ampere.  The scan rate is 150 mV/second, producing the highest and optimum current response of 4.24561 x 10-4 Ampere.  BHT standard equation y = (4.92784 x 10-6) x + (1.25207 x 10-4) is obtained with R2 = 0.99933. The limit of detection value is 2.69683 ppm, and the recovery percentage is 101.314%.  Therefore, this cyclic voltammetry method is suitable for analyzing BHT because it has high sensitivity.
Potential Analysis of Quercetin and Its Derivatives as Inhibitors of Hendra Virus (HeV) Rosyiidah, Nur Anisa; Setiarso, Pirim; Sanjaya, I Gusti Made
Indonesian Journal of Chemical Science and Technology (IJCST) Vol. 7 No. 1 (2024): JANUARY 2024
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/ijcst.v7i1.56448

Abstract

This study aims to determine the inhibitory potential of quercetin and its derivatives on the activity of Hendra virus (HeV) 6BK6 protein with its comparator N-Acetyl-D-[1-13C] Glucosamine. This research was carried out using the molecular docking method in order to obtain information related to binding affinity values, inhibition constants, and amino acid residues in the ligand-receptor hydrogen bonds. It was found that the compound quercetin 3-O-xyloside had the lowest binding affinity among the other compounds, namely -6.92 kcal/mol with an inhibition constant of 8.44 µM. In addition, there are four types of amino acid residues in the ligand-receptor hydrogen bonds including ASP304 (1,90 Ã…), SER301 (2,47 Ã…), ARG191 (3,18 Ã…), and MET188 (4.34 Ã…). In this case it can be concluded that the compound quercetin 3-O-xyloside has been shown to have the potential to inhibit the activity of the HeV 6BK6 protein.
Co-Authors I GUST MADE SANJAYA Pirim Setiarso Pirim Setiarso