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Al-Kimia

al-kimia
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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 238 Documents

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Fitoremediasi Tanaman Akar Wangi (Vetiver zizanioides) Terhadap Tanah Tercemar Logam Kadmium (Cd) Pada Lahan TPA Tamangapa Antang Makassar Alfia Patandungan; Syamsidar HS; Aisyah Aisyah Aisyah
Al-Kimia Vol 4 No 2 (2016): December
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

One example of soil contamination on land landfill is (TPA) Makassar. The method of prevention is phytoremediation of the contaminated land. This study examined the ability of the plant will vetiver (Vetiver zizanioides) in reducing the levels of Cd in the soil. To increase the potential of these plants to remediate Cd, the soil where the plants grow is combined with compost in which bacteria within the compost might improve the absorption of Cd. Planting medium used is pure soil and compost from Tamangapa Makassar. Research carried out for 28 days with a variation of the study. The composition of the media that the contaminated soil (TT) metal kadmium (Cd) and compost (K) with a ratio of 100% (TT): 0 K, 5 (TT): 1 (K), 4.5 (TT): 1.5 (K) and 4 (TT): 2 (K). The results shwed that vetiver plants were able to absorb Cd of 0,298 mg/Kg so it can be concluded that the composition of the planting medium with a combination of compost less significant because the combination of the contaminated soil with compost are less precise in helping vetiver plants accumulate or reduce metal pollution cadmium in contaminated soil Tamangapa Antang Makassar.

Pengujian Aktivitas Antibakteri Minyak Atsiri Jahe (Zingiber Officinale Roscoe) Terhadap Bakteri Staphylococcus Aureus dan Escherichia Coli Sufriyana Ali; Maswati Baharuddin; Sappewali Sappewali
Al-Kimia Vol 1 No 2 (2013): December
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Testing the antibacterial activity of the Essential Oil of Ginger (Zingiber officinale Roscoe) against bacteria Staphylococcus aureus and Escherichia coli. Purpose of this study is to determine the bacterial growht and activity test active compounds in ginger essential oils that can be used as an antibacterial to inhibit the growth of bacteria. This research uses a method soxhletation with solvent n- hexane to obtain the essential oil of ginger, making the media NA, rejuvenation bacteria, the manufacture of bacterial inoculum and suspension test. Antibacterial activity test using paper disc diffusion method in the form and method of dilution and analysis using GC-MS instrument. Antibacterial activity test result using paper disc method with a concentration of 25%, 50%, 75% and 100% in S. aureus (12, 34; 19, 42; 17, 34; 21, 7) mm and E. coli (10, 56; 13, 76; 16, 5; 23, 6) mm, while the result of the minimum inhibitory concentration (MIC) using ginger essential oil dilution method in S. aureus not found and E. coli at a concentration of 100%. The results of the analysis of essential oil components by GC-MS showed the active compounds in the form of compounds containing hydroxyl groups such as nerol, β- eusdesmol, borneol and compounds containing phenolic groups like zingerone.

Optimasi Penggunaan Hidrogen Peroksida (H2O2) Terhadap Penurunan Kadar Sianida Pada Limbah Cair Muntasir Muntasir; M. Sjahrul; Muhammad Zakir; Indah Raya
Al-Kimia Vol 3 No 2 (2015): December
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Optimation studies have been conducted using hydrogen peroxide (H2O2) to the reduction of cyanide levels in the wastewater. Parameters studied were the optimum concentration of hydrogen peroxide (H2O2), the optimum pH and optimum contact time between hydrogen peroxide (H2O2) with wastewater in reducing the cyanide content. Cyanide obtained from steam distillation of liquid waste and the assay using 0.02N silver nitrate. Concentration used were 500 ppm, 400 ppm, 300 ppm, 200 ppm and 100 ppm; pH range is (7, 8, 9, 10 and 11) and the variation of the contact time is: 0, 30, 60, 90, 120 and 150 minutes. The result of the research reveals at early treatment the cyanide content is 50,22% w / w and underwend a reduction in levels after addition of various concentrations of H2O2; variations in pH variation of contact time. Optimum condition treatment at 500 ppm of H2O2 basicity at pH 8 and contact time for 60 minutes result reduction of cyanide level of 36,40% w/w, 40,91% w/w and 37,09% w/w respectively.

Pemanfaatan Limbah Kulit Buah Pinang (Areca chatecu L.) Sebagai Biosorben untuk Mengolah Logam Berat Pb (II) Lisa Utami; Lazulva Lazulva
Al-Kimia Vol 5 No 2 (2017): December
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.v5i2.3524

This research aims to investigate the utilization of the waste of Pinang Fruit peel as a biosorbent which function to process Pb (II) from contaminated water. The result showed that the absorbtion ability of Pb (II) was strongly influenced by the acidity of solution, contact duration and the initial concentration of the Pb (II) solution. The maximum absorbtion was 92,50% at pH 6, initial concentration of 50 ppm in 75 minutes contact time. FTIR spectral data indicated the presence of amina, alcohol and carbonil groups. Isotherm Langmuir was at the maximum absorbtion of 0,877 mg/g.

Penentuan Kadar dan Distribusi Spasial Logam Berat Kadmium (Cd) pada Rumput Laut Euchema cottonii Asal Perairan Kab. Takalar dengan Metode Spektrofotometer Serapan Atom (SSA) Muh. Tasjiddin Teheni; Syamsidar HS
Al-Kimia Vol 1 No 1 (2013): June
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Seaweed is one of the potential export commodity to be developed in Indonesia. Types of seaweed in Indonesia that have high economic value, namely Eucheuma cottonni where Takalar is one seaweed production center in South Sulawesi. This study aimed to determine the levels of heavy metal cadmium in seawater and seaweed and the distribution of heavy metals in the waters of Takalar. The cadmium quality kwelswere determined by Atomic Absorption spectrophotometry (AAS) method. The sample analysis did through the process of destruction used HNO3, 10% HCl. The total spots of sampling are six in ekuding Sanrobone, Maciini Baji, Batiro Baji, Laikang and Puntondo village were spreaded out from North to South. The results of research shaowed that Cd metal was distributed at six site where the highest level was on Sanrobone village that was 0.4725 ppm and the lowest in Puntondo village that was 0.3910 ppm. The high levels of cadmium was influenced by levels of Cd on the sea water where the highest level of Cadmium were in the Sanrobone village and the lowest level in the Puntondo village. The levels of Cadmium metal on sea and Euchema cottonii seaweed at six has exceded the threshold set by PP RI No.20/1990 was 0,1 ppm.

Uji Aktivitas Ekstrak Karang Lunak Sarcophyton sp Terhadap Staphylococcus aureus Andi Fatmawati
Al-Kimia Vol 3 No 1 (2015): June
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Sarcophyton sp. is one kind of soft corals are today widely studied bioactive content as raw material for making drugs. Some research indicates that extracts Sarcophyton sp. Has many contain terpene compounds that function as antimicrobial, anticancer, antitumor, and anti-inflammantori. Research on Testing Activities Extract Coral Sarcophyton sp against Staphylococcus aureus has been done with the aim to determine the antimicrobial activity of extracts Soft Coral Sarcophyton sp against Staphylococcus aureus. Research conducted by the diffusion method, using iron cylinder diameter in the outer diameter of 6 mm and 8 mm, with an incubation period of 24 hours at 37° C. There are three test concentration of 5%, 10%, and 15% w/v, with the results of each inhibition zone average diameter: 8.91 mm, 9.92 mm and 11.18 mm. In this study a comparison is Tetracycline HCL is used as a positive control with a diameter of inhibition zone produced is 24.18 mm and Na.CMC 1% as a negative control. The results showed that the Soft Coral Sarcophyton sp extract can inhibit the growth of Staphylococcus aureus in consentration 5%, 10%, and 15% w / v. This study found that the higher concentration of the extract Soft Coral Sarcophyton sp has the higher of inhibitory power. The amount of concentration is directly proportional to the diameter of inhibition zone obtained.

Pengaruh Surfaktan Biner Cetil Trimetil Amonium Bromida (CTAB)- Hexametilen Triamin (HMT) pada Pembentukan Perak Nanorods menggunakan Katalis Natrium Hidroksida Atiek Rostika Noviyanti; Iwan Hastiawan; Akrajas Ali Umar; Diana Rakhmawaty Eddy; Gani Abdilah
Al-Kimia Vol 5 No 1 (2017): 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.v5i1.2843

Nanoparticles have different physical properties and more interesting than that of bulk material. Nanoparticles are highly preferred for applications in various technologies as a catalyst, the raw material of electronic components, and as an antimicrobial agent. The aim of the research is synthesize of silver nanorods. The effect of a binary surfactant CTAB-HMT on the morphology and homogeneity were investigated using UV/Vis spectrophotometer, TEM, and XRD. Base on the UV/Vis spectra and TEM morphology, silver nanoparticles have two types, spherical and rods shapes. The best product of nanorods was obtained at the composition of CTAB 0.15 M : HMT 0.15 M. The structure of nanorods obtained were face center cubic (fcc).

Produksi Energi Listrik dari Limbah Kulit Pepaya (Carica papaya) Menggunakan Teknologi Microbial Fuel Cells Lisa Utami; Lazulva Lazulva; Elvi Yenti
Al-Kimia Vol 6 No 1 (2018): 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.v6i1.4681

Microbial Fuel Cells (MFCs) is a technology that can produce electricity whilst at the same time treat wastewater. MFCs convert the chemical energy of organic substrates into electricity through catalyzing the anaerobic oxidation process in the anodic compartment by bacteria as a catalyst. This study investigated the generated electricity using peel papaya (Carica papaya) waste. Peel papaya waste was used as the electron donor in the anaerobic anode compartment and KMnO4 was used as acceptor electron in the cathode compartment with methylene blue as mediators. The maximum power density, current, and voltage respectively were 121, 70 mW/m2, 1,79 ampere and 1,095 V at 17 days operation. The pH of the solution was increased from 3,54 to 6,64 on day 12.

Penentuan Unsur Tanah Jarang Kelompok Sedang secara Voltammetri Pindai Linier Menggunakan Elektrode Grafit Pensil Yeni Wahyuni Hartati; Elsa Nur Utami; Diana Hendrati; Titin Sofyatin
Al-Kimia Vol 4 No 1 (2016): June
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Rare earth elements play an important role in a variety of applications, mostly for high-tech industries. But their presence in mineral jointly separation makes it difficult to determine the content of rare earths because each element has physical and chemical properties are almost identical. The purpose of this study is the use of a linear scan voltammetry method to study the electrochemical characteristics of the medium rare earth element group (Sm, Gd, Eu, Tb), as an alternative method of separation and analysis of rare earth elements. The electrode used is a graphite pencil electrodes without modification, with a variety of supporting electrolyte. The results obtained show some supporting electrolyte provides good reduction peak for gadolinium, compared to the peaks of the reduction potential of the single rare earth ions other. The potential range of the most well using pencil graphite electrode obtained at 0.50 V to -1.00 V. Analysis of single gadolinium provide linear regression equation in a concentration range of 4.0 to 10.0 mg/L by the equation Y = 0.9862 X + 0.828 with R2 = 0.9954. The limit of detection is determined from the linear regression obtained 0.72 mg / L.

Pemanfaatan Kitin Sebagai Bahan Membran Elektroda Enzim Diamin Oksidase Untuk Biosensor Histamin Abdul Karim; Abd. Rauf Patong; Abd. Wahid Wahab; Indah Raya
Al-Kimia Vol 2 No 2 (2014): Desember
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

This research aims to utilize isolated chitin from shrimp waste to develop histamine biosensors basedon diamine oxidase (DAO) enzyme electrode with cyclic voltammetry. DAO enzyme trapped in the chitin-cellulose acetate membranes with various comparisons were layered on the Pt electrode. Histamine will be oxidized by the DAO enzyme produces aldehydes and H2O2 which acts as an electron transfer mediator. Biosensor performance is influenced by several factors, especially the concentration and composition of electrode membranei.Comparison of chitin-cellulose acetate used in this study were 1:1, 2:1 and 3:1. Isolated chitin from the shrimp waste is chemically obtainedrendamen of 23.6%, and characterization of electrode membrane by FTIR and cyclic voltammetry showed that the DAO enzymes electrode with chitin-cellulose acetate membrane 2:1 is the best composition.

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