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Contact Name
Lalu Rudyat Telly Savalas
Contact Email
telly@unram.ac.id
Phone
+6287878138831
Journal Mail Official
telly@unram.ac.id
Editorial Address
A Building 2nd floor, Faculty of Teaching Training and Education, Mataram University, Jalan Majapahit No 62 Mataram, Mataram 83125, Indonesia
Location
Kota mataram,
Nusa tenggara barat
INDONESIA
Acta Chimica Asiana
Published by Universitas Mataram
ISSN : 2550049x     EISSN : 25500503     DOI : -
Acta Chimica Asiana (online ISSN 2550-0503, print ISSN 2550-049x) is a peer-reviewed, open access journal that publishes high-quality original research articles as well as review articles and short communication in all areas of Chemistry, including Chemical Education and Chemical Engineering. The editors welcome original contributions that have not been published and are not under consideration elsewhere. This journal is published by the Himpunan Kimia Indonesia Cabang Nusa Tenggara (Indonesian Chemical Society, Nusa Tenggara Division). All papers published free of charge
Articles 5 Documents
Search results for , issue "Vol. 3 No. 1 (2020)" : 5 Documents clear
Indonesian Modified Clay for Dye Waste Treatment Iwan Sumarlan; Is Fatimah; Karna Wijaya
Acta Chimica Asiana Vol. 3 No. 1 (2020)
Publisher : Chemistry Education Program, the University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (446.156 KB) | DOI: 10.29303/aca.v3i1.11

Abstract

Synthesis and Characterization of TiO2 Coated on Clay Pillared Alumina (PILC) for Methyl Orange Photodegradation Under UV Illumination. The synthesis included both pillarization the clay with alumina and TiO2 coated on PILC using impregnation method. Some characterizations also were employed to this research such as X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM), N2 Adsorption Isotherm and UV-Visible Diffuse Reflectance (DR UV). The photocatalyst was then used to decompose waste dye, methyl orange (MO). Among three photocatalysts that were successfully synthesized, PILC Ti 1.0% had the highest activity to decompose the waste dye.
Theoretical Study of the Substituent and Nitrogen Number Effects on the Uranium Binding Selectivity of Crown Ethers Saprizal Hadisaputra; Agus Abhi Purwoko; Ria Armunanto; Harno Dwi Pranowo
Acta Chimica Asiana Vol. 3 No. 1 (2020)
Publisher : Chemistry Education Program, the University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (630.454 KB) | DOI: 10.29303/aca.v3i1.30

Abstract

The compounds, [UO2(dibenzo-18-crown-6)]2+ and [UO2(18-crown-6)]2+, as well as their related complexes: numerous disubstituted dibenzo-18-crown-6 and azacrown complexes are studied using density functional theory (DFT). Quasi-relativistic effective core potentials developed in the Stuttgart and Dresden groups was used together with the accompanying basis set for uranium and DZP basis set was used for crown ether atoms. The effects of substituent and nitrogen number on the binding selectivity were discussed in term of the structural parameter, atomic charge and interaction energy, thermodynamic parameters, and charge transfer. The electron donating substituents increase the capability of dibenzo-18-crown-6 toward UO22+ ion. In contrast, the electron withdrawing substituents have the opposite effect. It clearly shows that UO22+ prefers N donor recognition. For the systems involved, the result shows that the hexaaza-18-crown-6 exhibits the largest metal interaction capability to UO22+ ion. The calculated results are in a good agreement with the experimental values.
Quantitative Analysis Of Fˉ Ion Recognition By A New Chemosensor from Flavon Group R Rahmawati; Syarifa Wahidah Al-Idrus; Baiq Nila Sari; Bambang Purwono; Sabirin Matsjeh
Acta Chimica Asiana Vol. 3 No. 1 (2020)
Publisher : Chemistry Education Program, the University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (522.901 KB) | DOI: 10.29303/aca.v3i1.17

Abstract

A new chemosensor S8 compound from the flavon group that has been successfully synthesized. Test its ability as a chemosensor for F- anion, providing positive results that it can recognize F- anion with response to an increase in fluorescent solution. Titration of S8 solution in DMSO solvents was carried out with F- anion at various concentrations and then measurements were made on fluorometry instruments. The fluorescent titration emission spectrum shows that the S8-Fˉ host-guest interaction quantitatively in the form of LOD and kass. LOD and Kass values are 6.43 × 10ˉ4 M and 2 × 106 Mˉ1, respectively.
Analysis Docking Of Plasmodium Falciparum Enoyl Acyl Carrier Protein Reductase (Pfenr) With Organic Compunds From Virtual Screening Of Herbal Database Nya Daniaty Malau; St Fatimah Azzahra
Acta Chimica Asiana Vol. 3 No. 1 (2020)
Publisher : Chemistry Education Program, the University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (481.379 KB) | DOI: 10.29303/aca.v3i1.14

Abstract

Malaria is one of problematic infectious diseases worldwide. The absence of an effective vaccine and the spread of drug resistant strains of Plasmodium clearly indicate the necessity for the deveploment of new chemotherapeutic agents. Recent method being developed is searching a new drug of antimalarial using in silico screening, or also known as virtual screening. One of enzyme target that important for growth of the malaria parasite is Plasmodium falciparum Enoyl Acyl Carrier Protein Reductase (PfENR). Inhibition of this enzyme cause the fatty acid biosynthesis type II will be terminated. In this research, in silico screening was performed using AUTODOCK VINA software to find inhibitor candidates of PfENR by using ligands from the database of Medicinal Plants in Indonesia. On the AUTODOCK VINA software moleculer docking experiments were performed between ligands and macromolecule target PfENR. This target that has been optimized with residue removal and charges addition. Ligand is expected to be the PfENR inhibitors.
Antioxidant Capacity and α-Amilase Inhibition by Avocado (Persea americana Mill) Peel and Red Ginger (Zingiber officinale var. Rubrum) based Functional Drink I Made Wisnu Adhi Putra; Ketut Ayu Sukesi; Ni Putu Eny Sulistyadewi
Acta Chimica Asiana Vol. 3 No. 1 (2020)
Publisher : Chemistry Education Program, the University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (386.24 KB) | DOI: 10.29303/aca.v3i1.22

Abstract

Avocado peel (Persea americana Mill) and red ginger (Zingiber officinale var. Rubrum) proved to have antidiabetic properties. However, there has been no research on the analysis of antidiabetic activity of the combination of avocado peel and red ginger in functional beverages. This study aims to make functional beverages from the combination of avocado peel and red ginger. Total phenolic content, antioxidant capacity, inhibition of the α-amylase activity, and public preferences towards functional beverages (organoleptic) were then evaluated. Functional beverages were made by brewing the powdered avocado peel and red ginger with 200 ml of hot water (96oC) for 5 minutes. The results showed that the increase of avocado peels amount in the combination coukd increase total phenolic content. The high antioxidant capacity was also found in samples with high content of avoccado peels. The results of inhibition of α-amylase enzyme activity did not show any significant differences. Organoleptic test results showed that there were no significant differences in each sample. The combination of avocado peel and red ginger has the potential to be an antidiabetic functional beverage.

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