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INDONESIA
Al-Kimia
Published by Universitas Islam Negeri Alauddin Makassar
ISSN : 23022736     EISSN : -     DOI : -
Core Subject : Science,
Chemistry
Al-Kimia is a journal of chemistry that published by Department of Chemistry, Faculty of Science and Technology UIN Alauddin Makassar. The journal is published twice a year on January-June and July-December. This journal encompasses original research articles in all aspects of chemistry and related area. The journal, which was firstly published in July 2013, is a forum for communication of research results, review the results of research, methodologies and new approaches in research related to chemistry in Indonesia.
Arjuna Subject : -
Articles 11 Documents
 1   2 
Search results for , issue "Vol 9 No 1 (2021): JUNE" : 11 Documents clear
Optimalisasi Penentuan Logam Cu(II) Mengunakan Metoda Voltammetri Stripping Adsorptif (VSAd) Hilfi Pardi; Nancy Willian
Al-Kimia Vol 9 No 1 (2021): JUNE
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/al-kimia.v9i1.18273

Abstract

Copper is an essential heavy metal, but if in concentrations that pass the threshold and accumulate in the body, it will be toxic which can cause various diseases. One of the methods for determining Cu(II) metal is the Adsorptive stripping voltammetry (VSAd). This research is to determine the metal using voltammetry stripping Adsorptive (VSAd) in samples of river water and sea water. To obtain maximum results in this method, it is necessary to have optimum conditions for various ligands (chalcone, 2,2' Bipyridine, 8-Hydroxyquinoline, Ammonium pyrrolidinedithiocarbamate) for potential accumulation , accumulation time, pH and optimum ligand concentration, as well as determining the accuracy and precision of the method used by determining the relative standard deviation (SDR) value, as well as the recovery value. The results obtained were chalcone as the optimum ligand, the optimum accumulation potential was -0.1 V, the optimum accumulation time was 60 seconds, the optimum solution pH was 6, and the optimum chalcone concentration was 0.5 mM. The relative standard deviation value is 4.27%, the recovery value is 98.31%. The application of the VSAd method to water samples resulted in the concentration of Cu(II) metal in the Batang Air Sidingin Padang river sample, which was 4.778 g/L and the estuary of Padang which was 5.189 g/L.
Pemilihan Monomer Fungsional Terbaik Dalam Molecularly Imprinted Polymer (MIP) Monogliserida Lard Menggunakan Metode Komputasi Adi Syahputra; Nurhadini Nurhadini; Fajar Indah Puspitasari
Al-Kimia Vol 9 No 1 (2021): JUNE
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/al-kimia.v9i1.10893

Abstract

Pemilihan monomer fungsional yang cocok dan dianggap relatif cukup baik selektivitasnya dalam pembuatan MIP dapat dilakukan dengan bantuan komputer (computer aided) untuk mengurangi trial and error. Dimana molekul target (template) dan monomer fungsional dimodelkan dalam bentuk 3D menggunakan software ChemBio Ultra 12 selanjutnya diinteraksikan  menggunakan software AutoDock Tools 1.5.6 dan Pyrx untuk melihat binding interaction yang terjadi dan binding energy serta kemiripan sifat polaritas yang secara teoritis dapat memberikan informasi sebelum dilakukan sintesis MIP. Seleksi monomer fungsional secara bertahap dilakukan berdasarkan ada tidaknya binding interaction, tahap berikutnya dilihat berdasarkan binding energy yang paling besar (negatif) dan terakhir adalah momen dipol. Berdasarkan data tersebut monomer fungsional terpilih adalah molekul Benzo-15-crown-5-acrylamide dengan binding Interaction berupa ikatan hydrogen serta nilai binding energy dan momen dipol paling besar.
Kajian in Silico Aktivitas Antioksidan Senyawa Bioaktif dalam Minyak Serai (Cymbopogon citratus) Dewi Ratih Tirto Sari; Yohanes Bare
Al-Kimia Vol 9 No 1 (2021): JUNE
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/al-kimia.v9i1.18986

Abstract

stress oxidative is a factor promoting metabolic syndrome and other diseases. oxidative stress could be minimalized by exogen and endogen antioxidants. Essential oil from Cymbopogon citratus extract have potential activities as anti-inflammatory and relaxing. This study determined the potential activity as antioxidant through kelch ECH associating protein 1 (KEAP1) inhibition. Four phytosterol compounds from Cymbopogon citratus essential oil, including 3,7-dimethyl-1,3,6-octatriene, decanal, elemol, dan selina- 6-en-4-ol, were downloaded from PubChem database. four compounds were docked with KEAP1 protein and analyzed using Discovery studio ver. 19.0.0.  3,7-dimethyl-1,3,6-octatriene, decanal, elemol, and selina-6-en-4-ol bound to KEAP1 in certain amino acid residues with hydrophobic interaction and hydrogen bond. Interestingly, 3,7-dimethyl-1,3,6-octatriene proved five hydrophobic interaction, higher than decanal and selina-6-en-4-ol. The elemol, and selina-6-en-4-ol interacted with KEAP1 showing lower binding affinity and tight interaction. This study suggested that 3,7-dimethyl-1,3,6-octatriene, decanal, elemol, and selina-6-en-4-ol promoted antioxidant activity. 
Potensi Kayu Apu (Pistia stratiotes) di Perairan Danau Tempe Kabupaten Wajo, Sulawesi Selatan sebagai Agen Fitoremediasi terhadap Ion Logam Cu2+ Muhammad Nasir; Dingse Pandiangan; Susan Marlein Mambu; Muhummad Nur; Siti Fauziah; Nur Insani Amir; Rizal Irfandi; Sahriah Rahim
Al-Kimia Vol 9 No 1 (2021): JUNE
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/al-kimia.v9i1.17969

Abstract

Lake Tempe is a technical lake that stretches across three districts in South Sulawesi, namely Wajo Regency, Sidendang Rappang Regency and Soppeng Regency. Because of its vastness, people use the lake for various activities, one of which is the textile industry. The textile industry uses a lot of chemicals which are then dissolved in water. These materials contain suspended solids, organic substances and heavy metals. The washing stage is the final process of the textile industry. The waste product is liquid waste containing heavy metals, including copper (Cu). To reduce or remove Cu metal found in Tempe Lake, phytoremediation techniques are used. Phytoremediation is an effort made to remove hazardous substances in areas contaminated with waste by using plants that have phytoremediator properties. Water plants that can be used are apu wood (Pistia stratiotes). The purpose of this study was to determine the ability of apu (Pistia stratiotes) to remediate Cu2 + in contaminated Lake Tempe water. The research method used included: Cu2+ assay, physicochemical analysis, Bio-Concentration Factor (BCF) and identification of functional groups. The greatest adsorbed Cu metal ion on apu wood is on the 10th day of 100,274 mg / Kg. 
Sintesis Ferri Salen-Taeniolit Sebagai Katalisator Pada Reaksi Pembentukan Monomer Poli Karbonat Alimuddin Alimuddin; Agusriyadin Agusriyadin; Syahrir Syahrir; Laode Abdul Kadir
Al-Kimia Vol 9 No 1 (2021): JUNE
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/al-kimia.v9i1.10768

Abstract

The researcher has succeeded in synthesizing the Ferri Salen-Taenolite complex as a clay based catalyst and applying it to the reaction of glycerol carbonate formation. Lewis acidity of the catalyst complex can increase through the immobilization process in addition, the activity and selectivity of the catalyst also increase. The formation of salene ligands is shown by the appearance of the peak C=N at the wave number around 1640 cm-1 and the O-H peak around 3400 cm-1. The formation of the Fe(salen)NO3 complex is indicated by the reduction of the vibration intensity O-H at the wave number of about 3400 cm-1 and the shift of the peak C=N in the area around 1640 cm-1 to 1690 cm-1. The complex [Fe(salen)]NO3 has been synthesized with physical properties in the form of brown powder and effective magnetic moment by 2,197 BM. The complex [Fe(salen)] + was successfully immobilized into the LiTN as much as 9.12 mmol/g LiTN. Based on the catalytic activity test, the catalyst was active in the reaction of polycarbonate monomer formation which is indicated by a change in vibration of the urea carbonyl (CO amine) group at wave number 4242 cm-1 to vibrate the carbonyl group (CO ester) at wave number 1786 cm-1 which indicates that glycerol carbonate has been formed.
Study In Silico Senyawa Asam Asiatik dan Turunannya Sebagai Anti Katarak Firlia Nur Fadila; I Gusti Made Sanjaya
Al-Kimia Vol 9 No 1 (2021): JUNE
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/al-kimia.v9i1.20609

Abstract

This study aims to examine asiatic acid from Barringtonia asiatica seed extract as an anti-cataract. The presence of asiatic acid in the extract was confirmed using LCMS. The study was conducted using the HKSA method and it is independent of the molecular docking method. Molecular modeling was carried out using the Avogadro program. Descriptors computation using NWChem (DFT method, 6-311G base set), Swiss ADME, Molinspiration, and ADMET. Molecular tethering and visualization using Autodock Tools 1.5.6. and Discovery Studio 2019 Client. The best compounds that fight against cataracts are 9- (methoxymethyl)-1,2,6a, 6b, 9,12a-hexamethyl-10,11-dioxo-1,2,3,4,4a,5,6,6a, 6b,7,8,8a, 9,10,11,12,12a, 12b,13,14b-icosahydropicene-4a carboxylic acid. The equation:Log P = 25.593 + (- 0.136) * PSA + (-1.694) * Surface area + (-0.015) * Volume + (1.368) * molar refraction + (0.129) * LUMO + (- 7.007) * HOMO + (- 0.117) ) * E DFT + (-0.037) * E Hydration + (- 0.262) * PolarizationThis molecule was confirmed to be anti-cataract based on the molecular docking against the 4JGF protein target which produced binding energy and inhibition constants of -8.78 and 0.3368 uM.
Artikel Review: Faktor yang Mempengaruhi Persen Biogasoline Minyak Nabati Menggunakan Katalis HZSM-5 dengan Metode Catalytic Cracking Dewinta Intan Laily; Dina Kartika Maharani
Al-Kimia Vol 9 No 1 (2021): JUNE
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/al-kimia.v9i1.17636

Abstract

The increase in fuel consumption of oil has an impact on the energy crisis. Biogasoline is one of the alternative energies that has the potential to solve the problem. The fact that biogasoline results are low is a challenge for further research. One of the methods used to produce biogasoline is the catalytic cracking method. Such methods generally use catalyst to help to speed up the reaction. HZSM-5 is one of the catalysts that has been widely used in various applications. In this review article will compare the value of % biogasoline between several types of crushed vegetable oils with hzsm-5 catalysts using catalytic cracking methods. Based on the results of the analysis it can be known that the method of catalytic cracking using the catalyst HZSM-5 produces a good % biogasoline value so the use of catalyst HZSM-5 is recommended in vegetable oil reactions. In addition, there are factors that affect the value of % biogasoline namely: rector type, operating temperature, reaction time, surface area and pore size catalyst HZSM-5 as well as vegetable oil type.
Pemanfaatan Berbagai Kulit Buah Sebagai Material Penyerap Ion Logam Zinc Pada Limbah Perairan Andreas Difa; Desy Kurniawati; Budhi Oktavia; Rahardian Z
Al-Kimia Vol 9 No 1 (2021): JUNE
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/al-kimia.v9i1.17439

Abstract

Logam Zn (seng) merupakan salah satu logam berat berbahaya yang dapat mencemari lingkungan. Salah satunya pencemaran pada perairan, pencemaran ini disebabkan dari berbagai pembuangan limbah industri seperti tekstil, kayu, pelapis logam dan lain-lain. Ada berbagai cara yang dapat digunakan untuk menangani pencemaran lingkungan ini, seperti penggunaan karbon aktif, hidroksida pengandapan, selaput pemisahaan dan lain-lain, namun Teknik ini masih meninggalkan masalah seperti penanganan lumpur kimia yang dihasilkan dan biaya yang masih mahal. Adsorpsi dengan biomassa hadir sebagai alternatif karena biaya yang relatif rendah dan kemudahan dalam pengoperasiannya. Biomassa ini bisa didapatkan dari bebagai buah dengan menggunakan kulit buah, seperti kulit jeruk, kulit lengkeng, kakao dan durian. Kulit buah ini mengandung senyawa selulosa dan pektin yang dapat dijadikan sebagai bahan penyerap ion logam berat.
Pembuatan Nano Partikel Kalsium (Ca) dari Limbah Tulang Ikan Patin (Pangasius sp) Menggunakan Metode Ultrasound- Asissted Solvent Extraction Nuramaniyah Taufiq; Risky Nurul Fadlila RN
Al-Kimia Vol 9 No 1 (2021): JUNE
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/al-kimia.v9i1.16390

Abstract

Management of fish bones asa a source of calcium must be converted into a smaller form so that it is easily absorbed by the body into nanocalsium. In this case, fish bones are seen as giving a lot of advantages because fish are easier to get. The purpose of this study was to utilize catfish(Pangasius Sp) bones as the main ingredient for the manufacture of nanocalcium and extract fish bone lead using the Ultrasonic-Assisted Solvent Extraction method. This research method is characterization . of cat fish bone waste making nano particles using the Ultrasonic-Assisted solvent method, and characterized SEM-EDX. The result showed that the characteristic of catfish bone powder waste were 10,35 % water content, 44,29 % ash content, 1,849 fiber content, 11,47 % fat content, 0,27% protein content, and carbohydrates 33,62%, and SEM result for the morphological size 5.000x magnification, the particle diameter 3111,08 nm and EDX was 6 % purity of calcium (Ca).
Steroid dari Kulit Batang Aglaia grandis (Meliaceae) Kindi Farabi; Nurlelasari Nurlelasari; Siti Hani Pratiwi; Desi Harneti; Rani Maharani; Agus Safari; Unang Supratman
Al-Kimia Vol 9 No 1 (2021): JUNE
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/al-kimia.v9i1.17936

Abstract

Steroids are a group of secondary metabolite which showed various biological activities. Meliaceae is a plant family used as a one of the source of steroid compounds. A. grandis is a member of the Meliaceae family in genus Aglaia which rarely explored. Previous studies have shown that A. grandis leaves contain triterpenoids, steroids, bisamide, and sesquiterpenoids. This study aims to obtain steroids from the bark of A. grandis. The structure of the isolated compound was determined using the NMR 1D and 2 D spectroscopic. Based on the extensive analysis, isolated compound identified as a stigmastant type steroid, stigmast-5-en-3β-ol-7-one.

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