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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 9 Documents

Search results for , issue "Vol 4 No 2 (2016): December" : 9 Documents clear

Isolasi dan Identifikasi Bakteri Pendegradasi Fenol yang Bersumber Dari Danau Tempe Kabupaten Wajo Sulawesi Selatan Fitriana Fitriana; Maswati Baharuddin; Sappewali Sappewali
Al-Kimia Vol 4 No 2 (2016): December
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Water pollution in Tempe Lake was consequence by people activity in around of Tempe Lake, such as domestic waste and agriculture waste. One of the dangerous pollutions which was resulted from the waste was phenol pollution. Phenol waste reduction efforts on Tempe Lake could be solved by biodegradation process using bacteria. This research aimed to: 1) Get the bacteria which was able to degrade phenol on samples sourced from Tempe Lake, Wajo South Sulawesi and 2) Identify the type of bacteria that can degrade phenol sourced from Lake Tempe, Wajo South Sulawesi. The Metods used in the research was making of media, isolation and purification of bacteria, identification of bacteria and testing the ability of phenol degradation. Bacterial identification tests include staining gram and biochemical tests (TSIA, SIM, MR-VP, urea, citric and sugar fermentation). The degradation test was performed using UV-Vis spectrophotometry with colorimetric method using follin reagent. The results showed that the bacterial identified as the genus Enterobacter spp and Klebsella spp which were gram negative bacteria. Test of phenol degradation at 48 hour incubation using UV-Vis shows that bacterial isolates C1F was able to degrade phenol 500 ppm to 3,091 ppm, bacterial isolate S1F was able to degrade phenol 500 ppm to 5,1153 ppm and bacterial isolate H2F was able to degrade phenol 500 ppm to 7,7834 ppm.

Pembuatan Dan Aktivitas Antibakteri Yogurt Hasil Fermentasi Tiga Bakteri (Lactobacillus bulgaricus, Streptococcus thermophilus, Lactobacilus acidophilus) Dian S. Kamara; Saadah D. Rachman; Ridya Widya Pasisca; Sadiah Djajasoepana; O. Suprijana; Idar Idar; Safri Ishmayana
Al-Kimia Vol 4 No 2 (2016): December
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Exploitation of synthetic antibiotics compounds not only have positive effect for human, but also have side effect that can be unfavorable, therefore many researches are being conducted to find natural antibiotics compounds that are safer. Lactic acid bacteria has the abilitytoproduce antibacterial compound when used in fermentation process.For example, Lactobacillus acidophilus produces acidophilin and acidolin. The main purpose of the present study is to investigate antibacterial activity of yogurt fermented with mixed bacterial culture of L. bulgaricus, S. thermophilus and L. acidophilus against Escherichia coli (representing Gram negative bacteria) and Bacillus subtilis (representing Gram positive bacteria). The antibacterial activity of the yogurt at three different time points (5, 7 and 9 hours) were examined. We also investigate the fermentation parameters of the yogurt production. The results of the present study indicate that the crude yogurt extract has antibacterial activity, where the highest activity was observed at 7 hour of incubation, resulting 0.35 and 0.30 cm of clear zone against E. coli and B. subtilis, respectively. It is most likely that the compound is non protein compound.

Senyawa Disobinin yang Bersifat Antimalaria dari Biji Tumbuhan Chisocheton macrophyllus (Meliaceae) Nurlelasari Nurlelasari; Desi Harneti PH; Unang Supratman
Al-Kimia Vol 4 No 2 (2016): December
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Disobinin compounds have been isolated from the seeds Chisocheton macrophyllus (Meliaceae). The chemical structure of compounds disobinin identified based on data covering UV spectroscopy, IR, 1D-NMR, 2D-NMR and mass spectra as well as the comparison with the data obtained from the literature. Disobinin compound showed antimalarial effect against P. falcifarum with IC50 values from 0.001 to 0.01 mg/mL . Limonoids compound, disobinin reported for the first time in the genus of Chisocheton.

Penentuan Nilai Kalor Briket Dengan Memvariasikan Berbagai Bahan Baku Samsinar Samsinar; Asri Saleh; Waode Rustiah
Al-Kimia Vol 4 No 2 (2016): December
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Limitations of the availability of non-renewable energy sources. Cocoa shell waste and sawdust widespread everywhere and can be used as an alternative energy source that is to cultivate and make fuel, one of which briquetting. The composition of the material that is (90: 10 75: 25 and 50: 50). After mixing the briquettes are printed using a printer briquettes. From this study, the best calorific value contained in the ratio of sawdust 90: Water Hyacinth 10 is 6223.20 cal/g, the ratio of sawdust 90: 10 cocoa skin is 5953.72 cal / g and Leather Cocoa 90 : Water Hyacinth 10 ie 6066, 09 cal/g. The best density value in comparison sawdust: cocoa skin (75:25) ie 1.05 kg/cm3. Best values compressive strength in comparison cocoa skin: water hyacinth (50:50) ie 2.32 kg/cm3. Best water content ratio of sawdust : water hyacinth (90 : 10) ie 3. 89% ash content. Value best comparison Leather cocoa : water hyacinth (90 : 10) is 0.66%. Volatile matter best value comparison cocoa skin: water hyacinth (90:10) ie 13.1%. The best comparison value of fixed carbon sawdust: cocoa skin (90 :10) is 62,34 %.

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.

Dekolagenasi Limbah Tulang Paha Ayam Broiler (Gallus domesticus) oleh Natrium Hidroksida (NaOH) untuk Penentuan Kadar Kalsium (Ca) dan Fosfat (PO4) Sitti Musdalifah; Syamsidar HS; Suriani Suriani
Al-Kimia Vol 4 No 2 (2016): December
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

This research aims to determine the level of Calcium (Ca) and Phosphate (PO4), and the influence of broilers femur submersion in NaOH toward Calcium (Ca) and Phosphate (PO4) levels. The method used in this research is decollagenation of broilers (Gallus domesticus) femur. Then, the parameters observed are chemical tests of Calcium (Ca) and Phosphate (PO4) levels. Decollagenation treatment was carried out in three soaking-time variation such as 42 hours, 72 hours, and 96 hours to respectively determine the Calcium and Phosphate levels. The result shows that soaking-time of femur does not give significant effect to increased levels of Calcium (Ca) and Phosphate (PO4).

Karakterisasi Zat Warna Tomat (Solanum lycopersicum) FRAKSI Metanol:N-Heksan Sebagai Photosensitizer Pada Dye Sensitized Solar Cell (DSSC) Nur Hasbi Wahab; Aisyah Aisyah Aisyah; Suriani Suriani
Al-Kimia Vol 4 No 2 (2016): December
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

One of the potential alternative energy to be developed to overcome energy crisis in the world is an DSSC. This research aimed to make a series of Dye Sensitized Solar Cell (DSSC) using an organic dye from crude extract of tomato as a photosensitizer. The dye obtained from the maceration by of ultrasonic waves using methanol. Separation was done by KKCV using eluent of methanol: n-hexane (3: 7, 1: 1, 7: 3). The best efficiency value (Ƞ) in the series of DSSC that results from the fraction methanol: n-hexane (1:1) was 0.0249%. Characterization using spectrophotometer UV-Vis showed a maximum absorption at wavelength of 447 nm which is the absorption of carotene compound. FTIR analysis showed that samples generally have -CH2-, C=C and OH strecth wich are the characteristic of carotene compound. GCMS analysis showed that dye components which estimated is dihydroxy lycopene of the retention time 10.93 with a molecular ion peak at m/z 91.

Optimalisasi Kalsium Karbonat Dari Cangkang Telur Untuk Produksi Pasta Komposit Warsy Warsy; St Chadijah; Wa Ode Rustiah
Al-Kimia Vol 4 No 2 (2016): December
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Egg shell is a household waste which can be used to produce a composite paste, as it contains around 90% calsium carbonate (CaCO3) as the main composition. This research aims to determine the optimum weight of egg shell powder in composite paste production. This research is conducted by determining the calsium carbonate content beforehand by EDTA titration and the determination of the contain of calsium by using atomic absorption spectroscopy (AAS), then the determination of the optimum weight of shell powder by varying the shell powder and baking soda. The results of the research that has been done that the content of calsium carbonate in the shell of eggs was 92,57% and calsium at 28%. While the optimum weight for the shell powder manufacture composite paste which is 3 grams with a ratio of 3,0 (Ca) : 7,0 (BS), in which the pH obtained is 9. This is in a accordance by SNI that the pH value of the composite paste is 4,5–10,5 and is semisolid form.

Isolasi Senyawa Metabolit Sekunder Fraksi N- Heksana Dari Daun Pegagan (Centellaasiatica L.) Dan Uji Antibakteri Terhadap Mycobacterium tuberculosis Salmiwanti Salmiwanti; Asriani Ilyas; Asri Saleh
Al-Kimia Vol 4 No 2 (2016): December
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Centella (Centella asiatica L. Urb) is one of the wild plants which are found in Indonesia and used by the community as a medicine. This study aims to isolate the kind of compound contained in n-hexane fraction centella asiatica leaf and to determine the optimal concentration of bioactive compounds gotu kola leaves in inhibiting the growth of bacteria Mycobacterium tuberculosis. centella asiatica leaf methanol extract obtained by maceration using methanol, then evaporated with a rotary evaporator. extract is then partitioned with n-hexane. n-hexane fraction obtained is evaporated until thick and then proceed to the stage fractionation, purification and identification with phytochemical test, analysis of UV-VIS spectroscopy and FTIR. isolated compounds were then tested antibacterial bioactivity using MODS. the results showed the compound n-hexane fraction contained in centella asiatica leaves are compound alkaloids. Antibacterial test results bioactive compounds of centella asiatica leaf can inhibit the growth of bacteria Mycobacterium tuberculosis optimally at a concentration of 60%, 80% and 100%, which is characterized by the absence of bacterial growth.

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