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All Journal CAKRA KIMIA (Indonesian E-Journal of Applied Chemistry) Jurnal Kimia (Journal of Chemistry) International Journal of Biosciences and Biotechnology Jurnal Veteriner Jurnal Energi Dan Manufaktur Jurnal Pendidikan Fisika Indonesia The Journal of Pure and Applied Chemistry Research BULETIN FISIKA Jurnal Kimia Mulawarman Journal of Science and Applicative Technology ALCHEMY Jurnal Penelitian Kimia Nata Palemahan: Journal of Environmental Engineering Innovations

Manuntun Manurung

Program Studi Kimia, Fakultas MIPA Universitas Udayana, Bali-Indonesia

Author-ID : 314670

Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Physics Veterinary

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PEMANFAATAN ZAT WARNA ALAM DARI EKSTRAK KULIT AKAR MENGKUDU (Morinda citrifolia Linn) PADA KAIN KATUN Mariance Thomas; Manuntun Manurung; I. A. Raka Astiti Asih
Jurnal Kimia (Journal of Chemistry) Vol. 7, No. 2 Juli 2013
Publisher : Program Studi Kimia, FMIPA, Universitas Udayana (Program of Study in Chemistry, Faculty of Mathematics and Natural Sciences, Udayana University), Bali, Indonesia

The research about utilization of natural dyes from root bark extract of Morinda citrifolia on cotton fabric has been done. The extraction of root bark morinda was done by using water and methanol as solvent with ratio of 1:20 (w/v) (10 g sample : 200 mL solvent). The extract obtained from water was blackish brown, while from methanol solvent was reddish brown. The extract obtained was used to dye cotton fabric with addition of 1.00 g whiting as a mordant. Extracts of both solvents can dye cotton fabrics with varied colors : yellow, red, and red purple. Mordant can strengthen the bond between the fiber and dyes and sharpen the fabric color. Endurance test by using 0.5% detergent water to soak for 15 minutes, showing the colour of fabric without mordant easily fade, whereas the colour with mordant of whiting do not easily fade.

KARAKTERISASI KARBON AKTIF KOMERSIAL SERTA APLIKASINYA SEBAGAI ADSORBEN ION TIMBAL(II) DAN KROM(III) Ni Ayu Putu Tejawati; Manuntun Manurung; Oka Ratnayani
Jurnal Kimia (Journal of Chemistry) Vol. 11. No.2 Juli 2017
Publisher : Program Studi Kimia, FMIPA, Universitas Udayana (Program of Study in Chemistry, Faculty of Mathematics and Natural Sciences, Udayana University), Bali, Indonesia

Pada penelitian ini dilakukankarakterisasi karbon aktif komersial serta aplikasinya sebagai adsorben Pb(II) dan Cr(III). Penelitian ini bertujuan untuk mengetahui kualitas dari karbon aktif komersial berdasarkan SNI (Standar Nasional Indonesia) dibandingkan dengan karbon aktif komersial yang diaktifkan kembali dengan pemanasan pada suhu 6000C selama 2 jam. Hasil penelitian menunjukkan, nilai kadar air adalah 6,8%, kadar zat menguap 13,22%, kadar abu total 1,9% dan kadar karbon terikat sebesar 79,1%. Bilangan iodin 774,2159 mg/g dan luas permukaan 8,9400 m2/g. Dengan pemanasan karbon aktif pada suhu 6000C selama 2 jam, bilangan iodin naik menjadi 864,7238 mg/g dan luas permukaan karbon aktif 9,2511 m2/g. Kapasitas Adsorpsi karbon aktif komersial terhadap Pb(II) adalah 0,3438 mg/g dan Cr (III) 0,1861 mg/g, sedangkan karbon teraktivasi panas kapasitas adsorpsinya adalah 0,6775 mg/g untuk Pb(II) dan 0,3033 mg/g pada Cr(III).

STUDI FOTODEGRADASI CONGO RED MENGGUNAKAN UV/ZnO/REAGEN FENTON Ni Luh Putu Widiantini; James Sibarani; Manuntun Manurung
Jurnal Kimia (Journal of Chemistry) Vol. 7, No. 1 Januari 2013
Publisher : Program Studi Kimia, FMIPA, Universitas Udayana (Program of Study in Chemistry, Faculty of Mathematics and Natural Sciences, Udayana University), Bali, Indonesia

The study of photodegradation of Congo Red using UV light, with addition ZnO catalyst, H2O2 and Fe2+ has been carried out. This study included the determination of optimum amount of ZnO, H2O2, Fe2+, pH optimum and the determination of system which shows the most effective in Congo Red photodegradation. The results showed that the optimum conditions to degradate 100 ppm of Congo Red solution were 60 mg of ZnO, 4 ml of H2O2 (0,0392 mol), 20 mg FeSO4 (0,0013 mol) and pH 5. The highest percentage of degradation was 93,6093 + 0,12 % reached using UV/ZnO/H2O2/ Fe2+ system at 5 hour photodegradation time. In this processes addition of ZnO, H2O2, and FeSO4, and pH were important parameters to increase the percentage of photodegradation.

ANALYSIS OF LIMONENE AND OTHER ANTIOXIDANTS IN COMMERCIALESSENTIAL OIL PRODUCTS COMPARED TO HOMEMADE VIRGIN COCONUT OIL Ni Made Suaniti; I Wayan Bandem Adnyana; Manuntun Manurung; Oka Ratnayani; Raisyah Anjani
International Journal of Biosciences and Biotechnology Vol 7 No 1 (2019)
Publisher : Central Laboratory for Genetic Resource and Molecular Biology, Faculty of Agriculture, Udayana University in cooperation with Asia-Oceania Bioscience and Biotechnology Consortium (AOBBC)

Essential oil production in the market is very diverse with various brands labeled as antioxidants that have gained more attention in the society recently. The purpose of this study was to analyze limonene and other antioxidants content of the essential oils in the market compared to homemade virgin coconut oil. The method used was Gas Chromatography-Mass Spectrometry (GC-MS) and Fourier-transform infrared (FTIR) Spectroscopy. The infrared spectrogram showed the presence of alkanes and esters respectively at wave numbers of 3000-2850 and 1750-1730 cm-1. Chromatogram results showed the presence of limonenecompounds and some antioxidants with a fairly good separation in the several types of oils, which was not detected in the homemade virgin coconut oil.

Isoprostan Urin Sebagai Biomarka Keracunan Etanol dan Upaya Detoksikasinya dengan Ekstrak Etanol Kulit Buah Manggis (URINE ISOPROSTANE AS TOXIC BIOMARKER OF ETHANOL AND DETOXICATION EFFORTS BY USING ETHANOL EXTRACT OF SKIN MANGOSTEEN) Ni Made Suaniti; Manuntun Manurung
Jurnal Veteriner Vol 17 No 4 (2016)
Publisher : Faculty of Veterinary Medicine, Udayana University and Published in collaboration with the Indonesia Veterinarian Association

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (90.427 KB)

Isoprostane as a marker of oxidative stress which is a toxic metabolite of fatty acids, can be formedafter experiencing lipid peroxidation duo to ethanol. The aim of this study was to analyze the isoprostaneas early detection biomarker in urine of Wistar rats after ethanol consumption in sub-acute, followed byadministration of ethanol extract of rind of mangosteen fruit (EERMF). ELISA was use in this study fordiagnostic method as it can analyze the content of biological fluids even in small amount. Detection ofisoprostane compounds in the urine Wistar rats after ingestion of ethanol 20%v/v in sub acute was (0.8837± 0.0625) ng/mL decrease levels (0.4500 ± 0.0625) ng/ mL after administration EERMF 20% w/v. Isoprostancan be used as biomarker ethanol toxic and decreased level after giving EERMF.

Komparasi senyawa volatil dalam serai wangi secara proximate analysis Ni Made Suaniti; I Wayan Bandem Adnyana; Manuntun Manurung
Jurnal Energi Dan Manufaktur Vol 14 No 2 (2021)
Publisher : Department of Mechanical Engineering, University of Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JEM.2021.v14.i02.p05

Proximate as an initial analysis to detect the percentage of volatile compounds in citronella as an antioxidant and citronella waste can be made activated charcoal to purify waste such as used cooking oil. The purpose of this study was to compare the volatile compounds contained in citronella powder and charcoal. The analytical method used is Proximate Analysis. The lemongrass powder was put in an oven at 500oC for 24 hours to get charcoal. The test results showed that there was a decrease in the content of volatile compounds after making citronella charcoal by 46.88% in wet conditions and 61.02% in dry conditions. However, after citronella was added to virgin coconut oil (VCO) 10% w/w increased the volatile percentage to 100% for charcoal and 99.98% for powder with 0.9% moisture in both citronella.

ANALISIS UNSUR Ag PADA SAMPEL CAIR DENGAN LASER INDUCED BREAKDOWN SPECTROSCOPY (LIBS) Sinaga Natalia Declarossy; Hery Suyanto; Manuntun Manurung
BULETIN FISIKA Vol 15 No 1 (2014): BULETIN FISIKA
Publisher : Departement of Physics Faculty of Mathematics and Natural Sciences, and Institute of Research and Community Services Udayana University, Kampus Bukit Jimbaran Badung Bali

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It has been done research on the analysis of Ag element in the liquid electrolyte with Laser Induced Breakdown Spectroscopy (LIBS) through electrolysis method. Observations conducted by LIBS using Nd-YAG laser (1064nm, 7ns). Prior to analyze, first looking for the optimum conditions of experiments had been done. The results showed that the optimum laser energy to the characterization of the elements Ag was 100 mJ and optimum conditions of electric current and time deposition on electrolysis process were 4.93 mA and 10 minutes, respectively. These conditions, next, for the application of quantitative analysis of Ag solution that started from concentration 300 ppm to the lowest concentration and limit of detection obtained 1 ppm.

DETEKSI DOPAMIN SECARA VOLTAMETRI MENGGUNAKAN ELEKTRODA PASTA KARBON TERMODIFIKASI ETER MAHKOTA (DIBENZO-18-CROWN-6) Irdawati Irdawati; Manuntun Manurung; Kadek Adi Septiawan
JURNAL KIMIA MULAWARMAN Vol 12 No 2 (2015)
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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The research about the detection of dopamine by voltammetry method using crown ether modified carbon paste electrode has been carried out. The aims of this research are to investigate the influence of pH and the composition of modifier to the sensitivity and limit of detection for dopamine analysis. The measurement was conducted by differential pulse voltammetry method.The optimum of pH and modifier (crown ether) composition in the detection of dopamine are 4,0 and 0.8%, respectively. The linear concentration range is obtained from 10 to 200 µM, linear regression equation y = 4,968 + 0,068x with R2 = 0,9988 and limit of detection 6,865 x 10-6 M. The modified carbon paste electrode has relative standard deviation smaller than Horwitz’s (1,28%<5,66%), therefore this electrode has a good reproducibility. The recovery using crown ether-modified carbon paste electrode is 99,0% showing a good accuration. The measurement of commercial samples contain dopamine HCl (Giulini and Proinfark injection) is 87,0% and 91,5% compared with the composition on the label

Modification of Carbon Paste Electrode with Crown Ether (Dibenzo-18-Crown-6) for Ascorbic Acid Analysis Using Differential Pulse Voltammetry Method Irdhawati Irdhawati; Manuntun Manurung; Anisha Maulinasari
ALCHEMY Jurnal Penelitian Kimia Vol 11, No 2 (2015): September
Publisher : UNIVERSITAS SEBELAS MARET (UNS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/alchemy.11.2.728.175-191

In this research, the modified carbon paste electrode with crown ether (dibenzo-18-crown-6) has been prepared, for determination of ascorbic acid. Some of parameters observed were optimization of crown ether composition in carbon paste, pH of solution, linear concentration range, limit of detection, reproducibility, and recovery. The optimum performance of the prepared electrode was applied for determination of commercialsampleswhich contain of ascorbic acid. The result of this research showsthat the optimum composition of crown ether in carbon paste is 0.6 % at pH 4. Linear range of concentration obtained is from 2 - 200 μM. The detection limit and percentage of recovery are 1.243 μM and 101.31 %, respectively. The modified electrode has HorRat value less than 2, it indicates a good reproducibility. Analysis of 4 commercial samples which contain of ascorbic acid were in agreement with the content listed in the label with the suitability of 94 - 100 %.

PREPARASI DAN KARAKTERISASI ARANG SABUT KELAPA SERTA APLIKASINYA SEBAGAI ADSORBEN LOGAM Cr(III) Ida Ayu Gede Widihati; Manuntun Manurung; Yunilawati Yunilawati
CAKRA KIMIA (Indonesian E-Journal of Applied Chemistry) Vol 10 No 1 (2022): Cakra Kimia (Indonesian E-Journal of Applied Chemistry)
Publisher : Graduate Program of Applied Chemistry, Udayana University, Bali-INDONESIA

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ABSTRAK: Kandungan selulosa yang tinggi pada sabut kelapa dapat dimanfaatkan sebagai bahan dasar pembuatan arang aktif. Tujuan penelitian adalah untuk membuat arang aktif dari sabut kelapa yang berguna untuk menyerap limbah ion logam Cr(III) dari perairan. Penelitian dimulai dengan pembentukan arang dari sabut kelapa pada berbagai suhu. Arang yang dihasilkan diaktivasi dengan HCl. Selanjutnya dikarakterisasi sesuai dengan SNI 06-3730-1995. Arang aktif dan arang tanpa aktivasi digunakan untuk menjerap logam Cr(III) dari larutan. Selain itu dilakukan juga optimasi parameter pH dan waktu adsorpsi. Hasil penelitian menunjukkan bahwa suhu karbonisasi terbaik adalah pada suhu 600oC. Waktu kontak optimum arang aktif dan arang tanpa aktivasi adalah 5 jam dengan pH optimum arang aktif dan arang tanpa aktivasi pada pH 6. Kapasitas adsorpsi terhadap ion logam Cr(III) sebesar 13,5645 mg/g dan 16,1452 mg/g masing-masing untuk arang tanpa aktivasi dan arang teraktivasi dari konsentrasi awal larutan sebesar 300 mg/L. Kapasitas adsorpsi meningkat sebesar 64,36 % apabila dalam bentuk arang dibandinkan dengan bentuk sabut kelapa dan kapasitas adsorpsi arang teraktivasi meningkat sebesar 19,02 % dibandingkan dnegan arang tanpa aktivasi. ABSTRACK: The high cellulose content in coconut coir fibers can be used as a basic ingredient for making activated charcoal. The purpose of this research is to make activated charcoal from coconut husk which is useful for absorbing Cr(III) metal ions from waters. The research was begun with the formation of charcoal from coconut husks at various temperatures. The resulting charcoal was activated with HCl. Furthermore, it was characterized according to Indonesian National Standart (SNI) 06-3730-1995. The activated and unactivated charcoals were used to absorb Cr(III) metal ion from solution. In addition, optimation of pH and adsorption time were also carried out. The results showed that the best carbonization temperature was at 600oC. The optimum contact time for activated charcoal and unactivated charcoal was 5 hours and the optimum pH for activated charcoal and unactivated charcoal was of 6 with the absorption capacities of Cr(III) metal ion were 13. 5645 and 16.1452 mg/g for unactivated charchoal and activated cahrchoal respectively from initial concentration of 300 mg/L. The adsorption capacity of the charcoal was increasing by 64.36 % comparing to coconut husk and it was increasing by 19.02% on activated charcoal comparing to unactivated one.

Co-Authors A. A. B. Putra A. A. I. S. J. Dewi A. A. Sg. Istri A. Suwandewi Agung Ari Chandra Wibawa Anak Agung Istri Agung Mayun Laksmiwati Anisha Maulinasari Arisma Damayanti D.N. Sinaga Devi Mayangsari Dina Lindawati Purba Emmy Sahara Fikriatun Nurhikmawati H. S. Suyanto Hery Suyanto I Gusti Ayu Putu Yunita Riyastini I Gusti Putu Agus Ferry S.P. I M. Siaka I Made Dira Swantara I Wayan Bandem Adnyana I Wayan Sugiri Adiyasa I. A. Gede Widihati I. A. R. Astiti Asih I. Oktavia I.A.G. Yunilawati Ida Ayu Gede Widihati Irdawati -, Irdawati Irdawati Irdawati Irdhawati Irdhawati Irma Fitria Ayuningtyas Iryanti Eka Suprihatin James Sibarani Kadek Adi Septiawan Kadek Adi Septiawan, Kadek Adi Kadek Dewi Wirmandiyanthi Ketut Gede Dharma Putra Made Hany Anastasia Mariance Thomas Marsela Luruk Bere N. K. Ermin N. P. A. J. S. Putri N. P. N Repli Suandewi2 Nadya Hartasiwi Ni Ayu Putu Tejawati Ni G. A. M. Dwi Adhi Suastuti Ni Luh Putu Widiantini Ni Made Meryana Utari Ni Made Puspawati Ni Made Suaniti Ni Made Yunarsih Ni Putu Ayu Krismayanti Ni Putu Widya Astuti O. Ratnayani Oka Ratnayani Oscar Yonathan Hambiyono P. S. Sihombing Raisyah Anjani Rizgyandhaka Artha Prawira Rizgyandhaka Artha Prawira Sinaga Natalia Declarossy Sri Rahayu Santi Tri Madesa Patadungan Turmuzi Tammi Widihati Widihati Wira Adi Capayanti Y. Setyo Yenni Ciawi Yunilawati Yunilawati

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