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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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Sistem Pengolahan Air Laut Menjadi Air Minum Menggunakan Tenaga Matahari Iswadi Iswadi; Aisyah Aisyah
Al-Kimia Vol 1 No 2 (2013): December
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Has done research about the system of purification of sea water into drinking water using solar energy. Utilization of solar energy as power naturally adopts the system of evaporation that occurs in a siklur water. Design and construction of tools created in the shape of a pyramid so that the absorption of thermal energy from the Sun can be maximum. Methods of work of the system is very simple, namely the souls imprisoned in the air that the pyramid would experience an increase in temperature significantly along with the searing Sun. The temperature of the hot air in the space pyramid is causing sea water which is at the bottom (floor) pyramid will evaporate and stick on the wall side of the inside of the pyramid. With the help of gravity, the water vapour will fall in the form of green ears water down the wall of the pyramid. The water will flow through the channel leading into the shelter is. This water is not already contain salt and pure water is so that it can be consumed directly. The results showed that the pyramid with size 160 cm x 160 cm 3 mm fiberglass-wall capable of producing fresh water as much as 2,100 mL. These results have been tested in the laboratory with a result salinity = 0,0 at T = 29,4 °C; TDS = 11 mg/L, 22.2 ms/cm conductivity, at T = 29.3 °C, no taste and no smell.

Analisis Antioksidan Ekstrak Etil Asetat Kulit Buah Manggis (Garcinia mangostana L.) Dengan Metode Dpph (1,1difenil-2-pikrilhidrazil) Dewi Sartika; St Chadijah; Iin Novianty
Al-Kimia Vol 3 No 2 (2015): December
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

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.

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.

Kinetika Adsorpsi Ion Logam Pb (II) pada Karbon Aktif dengan Gelombang Ultrasonik Santi Santi
Al-Kimia Vol 3 No 1 (2015): June
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Adsorption capacity Increase of the activated carbon can be done with the use of ultrasonic energy-producing high chemical. Activated carbon is used to absorb the metals Pb(II) with a variety of time. Research purposes to determine the effect of variation of contact time on the adsorption of Pb(II) using rice husk activated carbon irradiated with ultrasonic waves and without irradiation. Determining the reaction kinetics model (reaction order and k values) of Pb (II) using rice husk activated carbon irradiated with ultrasonic waves. The results showed the optimum time on the adsorption process of Pb(II) by rice husk activated carbon is irradiated with ultrasonic waves were 50 minutes, whereas the adsorption process of Pb (II) by rice husk activated carbon without irradiated with wave ultrasonic is 30 minutes. Reaction kinetics of Pb(II) according to the pseudo-second-order kinetic model and the value of k2 = 0.0472 g. mg-1.min-1.

Photosenzitizer dari Fraksi Metanol: N-Heksana Buah Cabe Merah (Capsiccum Annum L.) Muh Shiddiq Maming; Aisyah Aisyah; Suriani Suriani; Iswadi Iswadi
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.v5i1.2846

A research has been done on the dye components from the extract of red pepper (Capsiccum annum L) which is potentially used as photosensitizer. This study aims to determine the efficiency and the characteristics of the dye. The efficiency is measured on a cell made of glass ITO 100 Ω and a technical semiconductor TiO2. The pepper extract obtained from the ultrasonic maceration by methanol which then purified using a chromatography column using the ratio of 1: 4, 1: 1 and 4: 1 methanol:n-hexane. The results showed that the efficiency of the crude extract, fraction by ratio of 1:4; 1: 1 and 4: 1 are respectively 0.027%, 0.012%, 0.013% and 0.034%. Subsequently, the best efficiency fraction was characterized by using FTIR, UV-Vis and GC-MS. The wavelength of visible light obtained at 466 and 443 nm which is corresponds to the wavelength of carotene. The components indicate absorption at 1631.78 cm-1, 3008.95 cm-1 and 2992 cm-1 that are characteristic of carotenoid whereas, that of 1739 cm-1 and 3446.79 cm-1 are carbonyl and hydroxyl group of xantofil. According to the GC-MS fragmentation pattern, the carotenoid compounds identified by mass abundace at 91 and 105.

Fitoremediasi Logam Kadmium (Cd) dari Asap Rokok Menggunakan Tanaman Puring (Codiaeum Variegatum) Kurniawati L; Syamsidar HS; Kurnia Ramadani
Al-Kimia Vol 4 No 1 (2016): June
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Environmental problems in Indonesia even in the world of growing. One of the factors causing the environmental problems with surging smoking habits in society that cause air pollution. One of the pollutants generated from cigarette smoke is a cadmium (Cd) metal. One of the efforts made in reducing pollutants in the air, especially Cd metals is phytoremediation method using plant croton (Codiaeum variegatum). This study aims to determine the ability of plants to absorb Cd metals croton. The method is performed by directly exposure at 3, 6 and 9 days. Instrument used in this study is an atomic absorption spectrophotometer (AAS). The results showed that the croton leaves absorb Cd metal with a maximum concentration of 1,065 mg/kg on days 9, so that it can be used as Cd metal phytoremediator

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

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.

Sintesis Membran Silika Kitosan Dari Abu Ampas Tebu (Bagasse) Sjamsiah Sjamsiah; Kurnia Ramadani; Hermawan Hermawan
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.v5i1.2857

Membrane is a polymer layer that can be used in the process adsorbsi metal ions. Membrane can be synthesized from silica dust bagasse that termodifikasi kitosan. The purpose of this research is to know the impact of the addition of a variety of silicate on the characteristics of the membrane silika-kitosan the bagasse to the adsorpsi metal ions Pb. The content of silica in the bagasse to 73, 80 %. Membrane kitosan-silika be made with different variations of the composition of which is 1 : 1 ; 1 : 1, 5 ; 1 : 2 ; 1 : 2, 5 and 1 : 3 and the ability of the adsorpsi the metal Pb in a row of 41 %, 43, 76 %, 54, 88 %, 38, 36 % and 39, 6 %.. The application of membrane to the process adsorpsi metal ions Pb by membrane said with a ratio of 1 : 2 to concentrate Pb the beginning of the 50 parts per million. The use of membrane to the process readsorpsi to do with how to choose a membrane that has the adsorpsi of the membrane with a ratio of 1:2 be able to absorb metal Pb of 1 ppm. Membrane that has been used can be used with traffic readsorpsi, 2 % in the membrane of every 1 : 2.

Komposit Kitosan-Zeolit : Potensi Pemanfaatannnya sebagai Adsorben CO2 Riva Ismawati; Setiyo Prajoko
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.v6i1.4645

The world has paid special attention to the increasing of CO2 concentrations in the atmosphere. In climate change issue, CO2 gas as part of greenhouse gases plays an important role in controlling earth surface temperature. Several CO2 gas capture techniques have been reported. However, information on the utilization of potential natural materials as CO2 adsorbents is still small. This study aims to determine the potential of chitosan zeolite composites as CO2 adsorbents. Various literature is used to analyze the properties of zeolites, chitosan and the potential of chitosan- zeolite composites as CO2 adsorbents. The results show the possibility of utilizing zeolite-chitosan composites as CO2 adsorbents.

Identifikasi Metabolit Sekunder Ekstrak Etil Asetat Biji Alpukat (Persea americana Mill.) dan Uji Toksisitas Terhadap Larva Udang Artemia salina Leach. Musyarrifah Musyarrifah; Asriani Ilyas; Maswati Baharuddin
Al-Kimia Vol 2 No 1 (2014): June
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Since ancient times the people of Indonesia have known, and using nutritious plant as one of the efforts in the prevention of health problems. Plants belonging to the family Lauraceae is one of a group of plants commonly used by communities as traditional medicine, one of which is Avocado (Persea americana Mill.) Especially in the seeds, which contain secondary metabolites, namely polyphenols, tannins, flavonoids, triterpenoids, quinone, monoterpenoid and seskuiterpenoid and saponins. This study aims to identify the secondary metabolites contained in the seeds of avocado (Persea americana Mill.) And determine the toxicity of extracts and pure compounds using Brine Shrimp Lethality Test (BSLT). Avocado seed solvent extracted using ethyl acetate and the extract obtained was tested group and toxicity testing. The results showed that the ethyl acetate extract of avocado seeds contain phytochemicals based on test results of secondary metabolites, the flavonoids, alkaloids and steroids. Avocado seed solvent extracted using ethyl acetate and the extract obtained was tested group and toxicity testing. The results showed that the ethyl acetate extract of avocado seeds contain phytochemicals based on test results of secondary metabolites, the flavonoids, alkaloids and steroids.

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