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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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Analisis Logam Merkuri (Hg) Pada Krim Pemutih Wajah Merek X Dengan Metode Spektrofotometri Serapan Atom (SSA) Madania Madania; Megawati M Martani
Al-Kimia Vol 2 No 2 (2014): Desember
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Whitening creams that supposedly contain mercury which is added with the aim to reduce freckles on the skin’s surface, but it gives a negative impact, for it was conducted analysis of the presence of mercury compounds qualitatively and quantitatively. This research is purely experimental research with the aim of identifying the content of mercury (Hg) is the bleach cream face on brand X circulating in Indonesia are on the label does not have the composition, number and batch number POM and determine levels of mercury (Hg) is the bleach cream face on brand X. Qualitative test using three reagents that NaOH, HCl, KI whereas quantitative testing using atomic absorption spectrophotometry (SSA).The result of the research that brand X contains mercury (Hg). Brand X code A contains 2718,1273 bpm mercury (Hg) and code B contains 214,1661 bpm. Quantitative analysis results calculates using concentration obtained from a linear regression of whitening face cream brand X Code A contains 3239.9117 bpm mercury (Hg) and Code B contains 858,6798 bpm mercury (Hg) in pot.

Biorsopsi Ion Logam Zink (II) dalam Larutan Menggunakan Daun Kari (Murraya Koenigii) Bhayu Gita Bhernama
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.v5i1.2539

Penyerapan ion logam Zn (II) menggunakan daun kari (murraya koenigii) telah dilakukan, Penelitian ini bertujuan untuk menentukan kadar ion logam Zn (II) yang dapat diserap oleh daun kari (murraya koenigii). Kemampuan daun kari untuk menyerap ion logam Zn (II) telah dievaluasi dengan variasi pH larutan, kosentrasi, ukuran partikel berat biomaterial. Kadar ion logam yang terserap diukur menggunakan spektrofotometer serapan atom (SSA). Hasil penelitian menunjukan kondisi optimum penyerapan ion logam Zn 9II) menggunakan daun kari dengan pH 5 kapasitas penyerapan 0,611 mg/g, ukuran partikel 150 µm kapasitas penyerapan 0,689 mg/g, konsentrasi 50 ppm dengan kapasitas penyerapan 0,443 mg/g dan berat material 0,5 g kapasitas penyerapan 1,505 mg/g. Berdasarkan persamaan isoterm Langmuir didapatkan kapasitas penyerapan maksimum Qmax -0,127. Hasil analisis FTIR memperlihatkan adanya gugus hidroksil yang dapat mengikat ion logam Zn (II).Kata kunci : logam berat Zn (II), penyerapan, daun kari

The Photosensitizer from the Basic Dye Extract of the Skin Fruit of Eggplant (Solanum melongena L.) Indah Ayu Risnah; Aisyah Aisyah; Iswadi Iswadi; Jawiana Saokani
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.v6i1.4826

The latest generation of solar cell that utilizes dye from plants as a photosensitizer is Dye-Sensitized Solar Cell (DSSC). The dye from Solanum melongena L. is one of the potential photosensitizers due to its chemical and physical characteristics. This study aims to determine these characteristics as well as its efficiency value in DSSC. The dye was obtained by ultrasonic extraction in 1% HCl methanol solution. The crude extract of dye was treated in acid and basic condition and then separated by vacuum gravitation chromatography in a way that the polarity was increased. The results were a variety of dyes according to their polarity. The dye then applied in DSSC as the photosensitizers. The highest conversion value was 0.0211%, performed by the dye in pH 8 solution. The characteristic of this extract was identified by UV-Vis, FTIR, and GC-MS. All the spectral data indicated that the main component which responsible for this efficiency was pelargonidin.

Pengaruh Penyimpanan Pada Suhu Rendah (Freezer -3oC) Terhadap Kandungan Air dan Kandungan Lemak pada Ikan Lemuru (Sardinella longiceps) Anna Handayani; Alimin Alimin; Wa Ode Rustiah
Al-Kimia Vol 2 No 1 (2014): June
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

One of the peaceful and best pickling methode to maintain freshness of product is depository at low temperature (freezer). Through depository of process industrial balance and availability of processing result of fishery will remained to be taken care of. Depository of fish raw material specially of fish flesh expected will be more be economic in course of depository at low temperature (freezer). The fat rate before is depository (0 day) that is 5,14%, while at depository 1 day until 3 day of it fat is 9,43%, 14,70%, 15,30%, and to 4 until 7 days the fat content is downhill that is 7, 15%, 5, 50%, 3,96%. The rate irrigate before is depository (0 day) that is 26, 96%. While at depository 1 day until 3 day of its water that is 27, 87%, 27, 44%, 27,20%, and depository to 4 day until 7 days water content mount that is 27,94%, 27,97%, 28,10%, 28,40%. Depository of lamuru fish flesh (sardinella longiceps) conducted by at low temperature (freezer -3oC) during 7 day can cause degradation quality of good fish flesh of fat rate and also lamuru fish flesh colour changing from squeezing colour to become to squeeze to turn pale. While its water content is depository longer progressively increase.

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.

Delignifikasi Ampas Tebu untuk Pembuatan Pulp Rendemen Tinggi dengan Proses Peroksida Alkali Gustriani Gustriani; St Chadijah; Wa Ode Rustiah
Al-Kimia Vol 1 No 2 (2013): December
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Delignification is of lignin termination process with particular solvent that produce high yield the pulping. Alkaline peroxide process produces low kappa pulp. Bagasse contains 42-53% cellulose was used as a base material for pulping. Delignification of bagasse making of high yield pulp by the process of Peroxide Alkali has been done by varying the concentration of NaOH (4%, 5%, 6%, 7%, 8%) and length of cooking 1,5 hours in the temperature 121 °C and pressure 0,11 atm. The aim of the study is to obtain the optimum length of cooking the making of high yield of bagasse by process Peroxide Alkali. The method of the study is delignification with process of cooking using autoclave. The result of the study indicates that addition of concentration NaOH affects the pulp yield, number of permanganate and physical characteristic of papers sheet. The highest yield pulp obtained is 53,97% observed at the concentration of NaOH 5%. Whereas, the lowest number of permanganate is 3, 98 obtained by adding the concentration of NaOH 8%.

Biosorpsi Bogenvil (Bougainvillea spectabilis Wild) Terhadap Emisi Timbal (Pb) Pada Kendaraan Bermotor Andi Nurhikmah; Syamsidar HS; Kurnia Ramadani
Al-Kimia Vol 3 No 2 (2015): December
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

The motorized vehicle activities could result air pollution. One of the pollutan emitted from fuel process is lead which might be reduced by using Bogenvil plants (Bougainvillea spectabilis Wild). Bogenvil were planted in a 1 x 1,5 meter square sized green house where there is a particular hole to flow exhaust fume of motorized vehicle for an hour in each 3, 6, 9 and 12 day after the first exposure. The result shows that Bogenvil leaves have ability to absorb Pb metal emitted from vehicle in response to the exposure time. The highest accumulation of Pb in the leave is 0,469 mg/Kg with exposure time of 12 days. For this reason, the Bogenvil plant can be used as bio- accumulator of timbale metal in the air.

Potensi Zat Warna dari Ekstrak Etanol Kayu Sappang Sebagai KalorimetriAnion Nurmala Sari; Rachma Rachma; Santi Santi
Al-Kimia Vol 5 No 2 (2017): December
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Dye from Sappang Tree has been isolated using ethanol as a solvent. Braziline is one of the chemical compound found in the ethanol extract. The Compound can be used as anion calorimethric due to their active sites of hydroxyl and chromophore groups. Dyes from sappang tree has been tested on 10 g of several types of saturated anions (carbonate, sulfate, phosphate, cyanide, acetate, borax, nitrite, chloride, bromide, and iodide). The results of the tests show that the color of the dye from changes in carbonate, phosphate, cyanide, acetate, nitrite, and hydroxyl. Spectrophotometer UV/Vis is used to detect the limit of cyanide anion. Metanol and acetone show positive results on the dye in cyanide anion. Detection limit of braziline is 3x10-4 M. By addition of cyanide anion, the dye has detection limit at 1x10-4 M.

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.

Adsorpsi Karbon Aktif Dari Tempurung Kluwak (Pangium edule) Terhadap Penurunan Fenol Abdul Rahman Arif; Asri Saleh; Jawiana Saokani
Al-Kimia Vol 3 No 1 (2015): June
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Relative concentration of phenol was increased with concomitant increase in the industry that produced phenol. It coused by level of phenol contamination in water rise was increased also. It was needed waste handling specialy for phenol waste. One of way in processed phenol waste was adsorption processed by using activated carbon. Pangium edule could be use as media of making activated carbon to decrease organic compounds specialy for phenol because pangium edule contained the element of carbon that was potential as activated carbon. Carbonization process was conducted by drum clamp while activation that used was acid phosphate (H3PO4), calium hydroxide (KOH) and natrium carbonat (Na2CO3). The determination of phenol concentration dissolved used spectrophotometer UV-Vis and then was tested with the Langmuir isotherm equation and Freundlich. The result of research shown that the largest of phenol removal effeciency of activated carbon obtained by activated carbon with activator calium hydroxide (KOH) on carbon doses 1,5 gram was 91,97% with phenol opening 300 mg/L.

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