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Al-Kimia
ISSN : 23022736     EISSN : -     DOI : -
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.
Articles 123 Documents
Synthesis of N-Benzenesulfonyl-p-Coumaramide from p-Coumaric Acid Dali, Nasriadi; Dali, Arniah
Al-Kimia Vol 6, No 2 (2018): December
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Original Source | Check in Google Scholar | Full PDF (1327.881 KB) | DOI: 10.24252/al-kimia.v6i2.5891

Abstract

N-Benzenesulfonyl-p-Coumaramide has been synthesized from  p-qumarid acid. This research aimed to synthesized  N-Benzenesulfonyl-p-Coumaramidefrom p-qumarid acid. Targeted coumpound obtained  from two steps reaction. Whice were amidation and asilation. Shynthesized product was identified and characterized by melting point, thing Layer Chromatography analysis, FTIR Spectrhophotometer,  1H-NMR, dan 13C-NMR. The result showed the obtained N-Benzenesulfonyl-p-Coumaramide was white solid ( yield 78.58 %) with melting point was 145-147 oC  and KLT (SiO2, n-hexane : cloroform = 6 : 4 v/v, Rf = 0.45).
Pengaruh Komposisi Kitosan Terhadap Sifat Biodegradasi dan Water Uptake Bioplastik dari Serbuk Tongkol Jagung Alam, Muhammad Nur; Kumalasari, Kumalasari; Nurmalasari, Nurmalasari; Illing, Ilmiati
Al-Kimia Vol 6, No 1 (2018): JUNE
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Original Source | Check in Google Scholar | Full PDF (1790.18 KB) | DOI: 10.24252/al-kimia.v6i1.4778

Abstract

The aim of this research is to obtain the effect of chitosan addition on the properties of biodegradation and water uptake for bioplastics. Bioplastic is made from mixing corncob powder and chitosan using by gliserol as plasticizer. Bioplastic is synthesized for gelatinization temperature of 80oC. Chitosan addition is varied to 2, 4, and 6 g. Based on the analysis, the addition of chitosan can significantly decrease water uptake of bioplastic. The lowest percentage of water uptake was 8.59 % by addition 6 gr chitosan. The highest weight loss percentage of bioplastic was 88,42 % which is obtained by the addition of 2 gr chitosan heaped for 15 days in soil. This indicates that the bioplastic has the high biodegradation properties.  Also, the result of FTIR analysis indicated presence of O-H and N-H groups of bioplastics due to the addition of chitosan and glyserol, but their instensity experienced falling down and shifting at the wave numbers after stockpiled.
Analisis Kandungan Zat Besi (Fe) Pada Buah Kelor dan Daun Kelor (Moringa Oleifera) yang Tumbuh di Desa Matajang Kec. Dua Boccoe Kab. Bone Nurrahma, Andi; Alimin, Alimin; Rustiah, Wa Ode
Al-Kimia Vol 1, No 1 (2013): June
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Original Source | Check in Google Scholar | Full PDF (253.461 KB) | DOI: 10.24252/al-kimia.v1i1.1572

Abstract

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

Show Abstract | Original Source | Check in Google Scholar | Full PDF (1363.607 KB) | DOI: 10.24252/al-kimia.v4i2.1681

Abstract

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 %.
Isolasi Dan Karakterisasi Bakteri Simbion Larva Kupu-Kupu Cossus cossus Penghasil Enzim Selulase Baharuddin, Maswati; Patong, Abd. Rauf; Ahmad, Ahyar; La Nafie, Nursiah
Al-Kimia Vol 2, No 2 (2014): Desember
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Original Source | Check in Google Scholar | Full PDF (240.729 KB) | DOI: 10.24252/al-kimia.v2i2.1653

Abstract

This study was conducted to characterize bacterial symbionts of butterfly larvae Cossus cossus capable of degrading cellulose. This study successfully purify and characterize isolates originating  from the intestine (CC1 and CC2), head (CC3), middle (CC4), and tail (CC5). From a qualitative test using 0.1% congo red gained the clear zone indicates that the bacteria are able to degrade cellulose. Based on the test temperature and pH on the growth of the data obtained CC5 isolates including isolates of thermophilic bacteria, while others including mesophilic bacteria. While based pH test all isolates were able to grow well at neutral pH. Based on the data obtained growth curve maximum bacterial growth at the 24th hour. Based on morphology and physiology test obtained bacteria genus Acinotobacter, Pseudomonas, and Bacillus.
Analisis Antioksidan Ekstrak Etil Asetat Kulit Buah Manggis (Garcinia mangostana L.) Dengan Metode Dpph (1,1difenil-2-pikrilhidrazil) Sartika, Dewi; Chadijah, St; Novianty, Iin
Al-Kimia Vol 3, No 2 (2015): December
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Original Source | Check in Google Scholar | Full PDF (396.978 KB) | DOI: 10.24252/al-kimia.v3i2.1671

Abstract

Mangosteen fruit (Garcinia mangostana L.) is a potential source of natural antioxidant. This research can be seen through comparison of the effect of the solvent ethyl acetate for extract mangosteen rind (garcinia mangostana L.) the optimal antioxidant substances for withdrawal. Method used is maceration extraction using methanol and liquid phase using three variable 1:3, 1:4 and 1:5. The test Includes a qualitative and quantitative test of antioxidant. The results of the qualitative test show the presence of antioxidant in the yellow extract of mangosteen rind which turn purple discoloration on color test and the emergence of patches of yellow with purple backgroud on TLC when sprayed solution of DPPH 40 ppm. Then quatitativ test retrieved % high curbs in comparison 1:3.
Pemanfaatan Limbah Gergaji Kayu Mahoni (Swietenia macrophylla K.) sebagai Energi Alternatif dengan Metode Pirolisis Saleh, Asri; Nur, Hardiyanti
Al-Kimia Vol 6, No 1 (2018): JUNE
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Original Source | Check in Google Scholar | Full PDF (1716.254 KB) | DOI: 10.24252/al-kimia.v6i1.5065

Abstract

Abstract :The raise of materials need drives alternative new energy such as bio-oil. The sawdust of Mahagony, contained hemicelulose and lignin, was one of potential one to be alternative energy. This research aimed to define the characteristic of  sawdust  with pyrolisis method by using FTIR. The result showed that the heating effected to mass race, viscosity and calorie. The highest value of them were 1.0071 g/cm3, 1.0028 poise and 213.0956 kal/g respectively and the lowest value of them were 1.0025 g/cm3, 0.8600 poise and 13.5350 kal/g repectively. The FTIR spectrum result of Mahagony sawdust was 3426 cm -1  and 1638 cm-1 showed hydrophilic and aromatic compound.
Isolasi Karakterisasi T Asam Humat dan Penentuan Daya Serap Nya Terhadap Ion Logam Pb(II) Cu(II) dan Fe(II) Yuliyati, Yati B; Natanael, Christi Liamita
Al-Kimia Vol 4, No 1 (2016): June
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Original Source | Check in Google Scholar | Full PDF (416.757 KB) | DOI: 10.24252/al-kimia.v4i1.1455

Abstract

Coal, which are decomposition resulted of natural biological processes over the years in which the humic acid compound contained. The purposes of this research was tocharacterize and to compare the humic acid of coal from South Borneo. The isolation of humic acid by leaching process uses natrium karbonat 0.1 N and fractionation uses sulfuric acid 6M. The fraction was purified and the deposit was washed by sulfuric acid 1 M, aquadest and ethanol. Moisture content, ash content, cation exchange capacity, C/N ratio and E4/E6ratiowithspectroscopy were characterized. The yields of humic acid areobtained 12.35% of coal. C/N ratio of humic acid 20.72. The infrared spectroscopy results of humic acid from coal figures more of aromatic and -OH group with lower E4/E6 ratio, while from peat soil shows more of aliphatic and carboxylic group supported higher E4/E6 ratio. Kapasitas tukar kation 640,59 mek/100g; dan mempunyai daya serap terhadap ion logam yang cukup baik.
Isolasi Dan Identifikasi Bakteri Termofil Penghasil Amilase Dari Sumber Air Panas Lejja Sulawesi Selatan Arfah, Rugaiyah A.; Patong, Abd. Rauf; Ahmad, Ahyar; Djide, M. Natsir
Al-Kimia Vol 2, No 2 (2014): Desember
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Original Source | Check in Google Scholar | Full PDF (274.196 KB) | DOI: 10.24252/al-kimia.v2i2.1644

Abstract

A Research isolation and identification of bacteria termofil amylase from hot springs Lejja South Sulawesi has been done. This study aims to characterize the morphological, biochemical, genus and species of bacteria producing  the enzyme amylase. The method used in this study through the stages: 1) Skrening and isolation of bacteria by means of as much as 1.0 mL of sample dilution plated on Petri dishes containing agar medium, then incubated for  20-24 hours at 50 °C, colonies of bacteria growing and has a colony morphology different character each taken 1 ose then etched into the amylolytic selective medium then incubated for 20-24 hours at 40oC and 50oC. Colonies that grew on selective media is scratched quadrant amylolytic to obtain pure isolates. Pure bacterial isolates taken 1 ose then grown in selective medium for 48 h at 50° C, bacterial isolates were grown spilled iodine solution (2% I2 and 0.2% KI) when there is a clearing zone around the colony indicated as the enzyme-producing bacterial isolates termofil amylase; 2) termofil characterization of bacterial isolates in microscopy with Gram stain; 3) isolates selected biochemical tests performed according  to the method Bergeys Manual and Systematic of Bacteriology. Results of screening and isolation of 10 bacterial isolates obtained amylase through iodine test, selected 2 isolates, 1 isolate from water samples RSAII-1B and 1 isolates from water samples mixed sediment RSSII-4B, which has a diameter of clearing zone of 5.6 cm respectively and 5.15 cm; out such characterization results of gram stain microscopy showed that the 2 isolates including gram + and shaped bacillus, the colony morphology as observed macroscopically, microscopy and  biochemical test results  obtained  RSAII isolates and isolates RSSII-1B-4B is a Bacillus sp.
Isolasi dan Identifikasi Bakteri Pendegradasi Fenol yang Bersumber Dari Danau Tempe Kabupaten Wajo Sulawesi Selatan Fitriana, Fitriana; Baharuddin, Maswati; Sappewali, Sappewali
Al-Kimia Vol 4, No 2 (2016): December
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Original Source | Check in Google Scholar | Full PDF (847.388 KB) | DOI: 10.24252/al-kimia.v4i2.1694

Abstract

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.

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