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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.

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Articles 9 Documents

Search results for , issue "Vol 1 No 1 (2013): June" : 9 Documents clear

Isolasi dan Identifikasi Senyawa Metabolit Sekunder Ekstrak n-Heksan dari Umbi Lobak (Raphanus Sativus Lamk) Ummi Zahra; Muharram Muharram; Asriani Ilyas Asriani Ilyas
Al-Kimia Vol 1 No 1 (2013): June
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Isolation and identification of secondary metabolite compound in extract of n-Hexane in Umbi Lobak (Raphanus sativus Lamk) have been carried out. The purpose of this research is to know secondary metabolite compound which is contained in Umbi Lobak (Raphanus sativus Lamk) which obtained from Gowa. The compound was obtained by isolation process that consists of several steps including extraction, fractination, purification, and identification. Extraction was carried out using maceration with n- hexane. The identification has done by phytochemistry test, melting point, solubility, TLC, and IR spectroscopy. The result of research found out that the obtained compound was the steroid compound, with melt point 133-133,5 oC and had positive reaction toward Lieberman Burchad reagents, where the Lieberman Burchad reagent resulting is green which perfectly solved in n-hexane, bit solved in methanol, and could not be solved in aceton. TLC analysis showed a stain in three scales different solvent and the result of elucidation structure in IR spectrophotometer showed that compound which get is β sitosterol.

Pengaruh Konsentrasi Aktivator Asam Klorida (HCL) Terhadap Kapasitas Adsorpsi Arang Aktif Kulit Durian (Durio Zibethinus) pada Zat Warna Methanil Yellow Supiati Supiati; Muh. Yudi; St Chadijah
Al-Kimia Vol 1 No 1 (2013): June
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Durian’s peel a waste which usually burned, stacked or discarded, which are unfavorable to environment. This condition motivates author to produce value-added products from the durian peel, such as activated carbon, as well as solving some environmental problems. This research aims to know the influence to use variation of concentration of activator HCl whice produces the optimum adsorption capacity from charcoal active of durian’s peel to the substance color of methanil yellow. Active carbon which is used in this research comes from durian’s peel which granular types with standard -100+40 mesh. Carbon is activated by physics in furnace with 400°C heat during 2 hours and is activated by chemistry with submerged of HCI 1M, 2M, 3M, 4M and 5M during 24 hours. The result of this research shows that optimum concentration in HCI 1M with adsorption capacity from charcoal active of durian’s peel is as large as 0,5350 mg/g. Whereas knowing the influence of activator is used tabulation method by statistically, where we can get F Hitung 0,004 is smaller from F Tabel 10,127. It explains that H0 is accepted to reject H1. Therefore, it can conclude that there is not significant influence to use variation of concentration of activator HCl to adsorption capacity of charcoal active from durian’s peel in substance methanil yellow.

Analisis Kandungan Zat Besi (Fe) Pada Buah Kelor dan Daun Kelor (Moringa Oleifera) yang Tumbuh di Desa Matajang Kec. Dua Boccoe Kab. Bone Andi Nurrahma; Alimin Alimin; Wa Ode Rustiah
Al-Kimia Vol 1 No 1 (2013): June
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

This research is a kind of experiment research by analyze mineral such as iron essence (Fe) that are needed as a suplement in our body. In this research are used the kelor’s fruits and kelor’s leaf as specimen with the aim to know the iron essence (Fe) that content in the specimen. The content of iron essence (Fe) in specimen are used by Atomic Absorption Spectroscopy (AAS) method. The kelor’s fruits, the average iron essence (Fe) content in A place is 2,50 mg/100 gram specimen, B place is 3,20 mg/100 gram specimen, C place si 3,59 mg/100 gram specimen and D place is 4,51 mg/100 gram specimen. Than the kelor’s leaf, the average iron essence (Fe) content in A place is 5,89 mg/100 gram specimen, B place 5,73 mg/100 gram specimen, C place is 6,02 mg/100 gram specimen and D place is 6,21 mg/100 gram specimen.

Analisa Penurunan Kadar COD Dan BOD Limbah Cair Laboratorium Biokimia UIN Makassar Menggunakan Fly Ash (Abu Terbang) Batubara Rahmawati Rahmawati; St Chadijah; Asriani Ilyas
Al-Kimia Vol 1 No 1 (2013): June
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Fly ash coal has been used as adsorbents in reduction of pollutant parameters in the wastewater. Fly ash coal is a coal combustion residue in the form of fine particles and an inorganic material that is being developed potential for mineral adsorbent, so as to reduce environmental pollution. Activation of fly ash coal carried by soaking in solution H2SO4 1 M, then heated at a temperature of 450oC. The method used is a separate component that is specific adsorption of the fluid to the surface of solids. This study aims to determine how the effectiveness of fly ash coal as adsorbent in the lower levels of COD and BOD effluent Biochemistry laboratory at the State Islamic University of Alauddin Makassar. The results showed that the fly ash coal can be used to reduce the content of COD and BOD. COD and BOD levels before it is contacted with fly ash coal in a row 92 414 mg/L and 24 255 mg/L. After contacted with fly ash coal in optimum condition weighs 1.5 g and 90 rpm COD decreased to 33 005 mg/L and 32 062 mg/L, whereas at 2 g and 90 rpm BOD decreased to 17 325 mg/L and 10,395 mg/L.

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.

Isolasi dan Uji Aktivitas Enzim Selulase dari Bakteri Simbion Larva Kupu-Kupu Family: Cossidae Terhadap Variasi Lama Inkubasi Rina Dwismar; Maswati Baharuddin; Syamsidar HS
Al-Kimia Vol 1 No 1 (2013): June
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

The study is titled Isolation and Testing Cellulase Enzymes from Bacterial Symbiont butterfly larvae Family: Cossidae of Variations on Old Incubation aimed to isolate cellulase enzymes in larvae of butterflies and determine tIsolasi dan Uji Aktivitas Enzim Selulase dari Bakteri Simbion Larva Kupu-Kupu Family: Cossihe optimum incubation time of enzyme production and activity of enzymes to degrade CMC substrate. In this study, an enzyme produced from the microbial gut symbionts Cossidae butterfly larvae that had been cultured in media cellulolytic, then produced the long incubation variation of 0, 12, 24, 36, 48, 60, and 72 hours, crude enzyme obtained by centrifugation at a speed of 5000 rpm at 40C and then tested enzyme activity using UV-VIS spectrophotometer. From the research result that cellulolytic bacteria can be isolated from the gut of larvae of butterlies Family: Cossidae with old optimum activity of cellulase enzyme production is 60 hours with a value of activity amounted to 2,38 x 10-3 U/mL.

Pengaruh Penambahan Ammonium Sulfat Terhadap Kadar Serat dan Ketebalan pada Nata de Soya dari Limbah Cair Tahu Ismawanti Ismawanti; Maswati Baharuddin; Wahyu Rizandi
Al-Kimia Vol 1 No 1 (2013): June
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

The research aimed to know the production of cellulose in tofu liquid waste, the effect of adding ammonium sulfate to the nata de soya, and the quality nata de soya produced from Tofu Liquid Waste. The parameters used are the determination of the thickness and weight, measure of water, and fiber test of nata de soya. By using variations of the addition of ammonium sulfate 10 g, 15 g, 20 g, and 25 g. 35 grams of sugar in 500 mL of tofu liquid waste, starter bacteria Acetobacter xylinum as much 100 mL, and fermented for 14 days at a temperature of 28-30oC. The quality nata de soya highest of the addition 15 grams of ammonium sulfate with a thickness of 1.7 cm, weight 231.0 grams, the lowest water content of 94.23% and the highest fiber content of 2.41%.

Optimalisasi Biosorpsi Bekatul Terhadap Kalsium (Ca) dengan Menggunakan Metode Batch Subarman Subarman; Asri Saleh; Aisyah Aisyah
Al-Kimia Vol 1 No 1 (2013): June
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

The study is titled Optimization of biosorption Biomass Against Calcium (Ca) by using the method of Batch. Background on this research that, the utilization of biomass as an adsorbent bran on the absorption of calcium metal (Ca) and reduce the pollution caused from the bran biomass. This study aims to determine the optimum pH and time as well as processing of biomass with metal biosorption Calcium (Ca). Bran biomass taken directly to rice mills in Kecematan Pallangga Gowa. The method used in this study is the activation process, the determination of the optimum pH, optimum timing, method in the determination of biosorption Batch, then the results were analyzed by using Atomic absorption spectrophotometer (AAS).The results obtained from this study is that the pH optimum at pH 9, the optimum contact time to 15 minutes, and the biosorption capacity of 14.1804 mg/L.

Identifikasi Komponen Minyak Atsiri Daun Kawista (Feronia limonia) dengan Metode Gas Cromatography-Mass Spectroscopy (GC-MS) Saadatul Husna; St Chadijah; Aisyah Aisyah
Al-Kimia Vol 1 No 1 (2013): June
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Indonesia has a vast variety of plants species which largely unexplored. Several researches have conducted to explore the potentials of the plants. However, the chemical constituents of Kawista plant have not been widely investigated. This study aimed to identify the components of the essential oil from Kawista leaves (Feronia limonia). This study consisted of two stages, namely the extraction of essential oil by distillation method and the analysis of the essential oil components by GC-MS method. The results showed that there are sixteen volatile components in the essential oil of Kawista leaves (Feronia limonia). They are 3-pentanol, 1-methyl siklopenatnol, 3methyl siklopentanol, 1,1-dimethyl 2-propenol, 4-tujanol, 2 methyl 3buten-2-ol, 1-(2-oksiranil etanon, 2-heksanon, 1-butanone cyclohexyl, 3-methyl 2 pentanon, 1-heksanal, 2-heksenal, 1-ethyl acetaldehyde, 2,5-tetrahidrodimethyl furan and γ-terpinen.

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