Garuda - Garba Rujukan Digital

p-Index From 2021 - 2026

1.829

P-Index

This Author published in this journals

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

Published : 46 Documents Claim Missing Document

Claim Missing Document

Articles

1 2 3 4 5

SINTESIS NANOPARTIKEL PERAK (NPAg) MENGGUNAKAN EKSTRAK AIR DAUN KEMANGI (Ocimum Sanctum Linn.) DAN APLIKASINYA DALAM FOTODEGRADASI ZAT WARNA METILEN BIRU Marsela Luruk Bere; James Sibarani; Manuntun Manurung
CAKRA KIMIA (Indonesian E-Journal of Applied Chemistry) Vol 7 No 2 (2019): volume 7, Nomor 2, 2019
Publisher : Magister Program of Applied Chemistry, Udayana University, Bali-INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (975.156 KB)

ABSTRAK: Penelitian ini bertujuan untuk mensintesis nanopartikel perak (NPAg) menggunakan ekstrak air daun kemangi (Ocimum Sanctum Linn.) yang digunakan sebagai katalis untuk fotodegradasi metilen biru. Ekstrak air daun kemangi mengandung senyawa flavonoid dan tanin yang berfungsi sebagai bioreduktor untuk mereduksi Ag+ menjadi Ag0 dan penstabil nanopartikel perak. Perbandingan volume ekstrak daun kemangi dengan volume larutan AgNO3 1 mM divariasikan sebesar 1:9, 2:8, 3:7, 4:6, 5:5 dan suhu sintesis juga divariasikan pada 25, 40, 50, 60. Keberhasilan sintesis dikonfirmasi dengan spektroskopi sinar tampak pada panjang gelombang 447 nm. Analisis nanopartikel perak (NPAg) dilakukan dengan Particle Size Analyser (PSA). Perbandingan volume optimum diperoleh pada perbandingan 2:8 dengan ukuran NPAg sebesar 70,190,89 nm. Degradasi metilen biru dilakukan pada kondisi optimum dimana volume nanopartikel sebesar 4 mL, pH 10 dan waktu fotodegradasi selama 3 jam. Fotodegradasi metilen biru pada kondisi optimum tersebut adalah sebesar 77,90% dari konsentrasi awal sebesar 200 ppm. Kata Kunci: Nanopartikel perak, kemangi (Ocimum Sanctum Linn), fotodegradasi, metilen biru, bioreduktor. ABSTRACK: Synthesis of silver nanoparticles (NPAg) used as catalysts for photodegradation of methylene blue was conducted using water extract of basil leaves (Ocimum Sanctum Linn.). The water extract of basil leaves contains flavonoids and tannins which function as bioreductors of Ag+ to Ago and stabilize silver nanoparticles. The volume ratio of basil leaf extract to solution of AgNO 3 1 mM were varied by 1: 9, 2: 8, 3: 7, 4: 6, 5: 5 and the synthesis temperature was also varied at 25 ?, 40 ?, 50 ?, 60 ?. The success of the synthesis was confirmed by visible light spectroscopy at a wavelength of 447 nm. Analysis of silver nanoparticles (NPAg) was carried out with the Particle Size Analyzer (PSA). The optimum volume ratio was obtained at a ratio of 2: 8 with the NPAg size of 70.19 ± 0.89 nm. The optimum conditions for photodegradation of methylene blue were achieved at nanoparticle volume of 4 mL, pH of 10, and irradiation time of 3 hours. The photodegradation of methylene blue at these optimum conditions was 77.90% out of 200 ppm of mentylene blue solution.

SINTESIS DAN KARAKTERISASI ARANG DARI LIMBAH BAMBU DENGAN AKTIVATOR ZnCl2 Manuntun Manurung; Oka Ratnayani; Rizgyandhaka Artha Prawira
CAKRA KIMIA (Indonesian E-Journal of Applied Chemistry) Vol 7 No 2 (2019): volume 7, Nomor 2, 2019
Publisher : Magister Program of Applied Chemistry, Udayana University, Bali-INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (581.618 KB)

ABSTRAK: Bambu merupakan salah satu bahan baku pembuatan arang yang dapat diaktivasi secara fisika atau kimia untuk menghasilkan arang aktif. Tujuan dari penelitian ini adalah membuat dan mengkarakterisasi arang aktif dari limbah batang bambu dengan aktivator ZnCl2. Penelitian diawali dengan membuat arang bambu melalui karbonisasi pada suhu 650oC selama 90 menit. Kemudian arang diaktivasi dengan penambahan larutan ZnCl2 dengan berbagai konsentrasi. Hasil penelitian menunjukkan bahwa konsentrasi optimum aktivator ZnCl2 adalah 0,02 M. Arang aktif yang diperoleh memiliki kadar air 5,00%, kadar zat mudah menguap 6,00%, kadar abu 7,33%, kadar karbon 81,67 %, daya serap terhadap Iod 1091,426 mg/g, dan daya serap methylene blue 198,724 mg/g. Karakteristik ini telah memenuhi baku mutu SNI 06-3730-1995 tentang arang aktif teknis. Luas permukaan arang aktif sebesar 737,74 m2/g dan keasaman permukaannya sebesar 0,5122 mmol/g. Analisis gugus fungsi terhadap arang aktif menunjukkan adanya gugus fungsi O-H, karbonil, alkuna, dan ester. Kata kunci: aktivasi, karakterisasi, arang aktif, limbah bambu. ABSTRACT: Bamboo can be used as a raw material for making carbon that can be activated physically or chemically to get activated carbon. The purpose of this research was to synthesize and characterize activated carbon from bamboo stem waste by using ZnCl2 solution as activator. The research was started by preparing the bamboo carbon through carbonization at a temperature of 650oC for 90 minutes. Activation was carried out by adding ZnCl2 with various concentration ratios. The results showed that the optimum concentration of ZnCl2 activator was 0.02 M. The activated carbon had a moisture content of 5.00%, volatile substance of 6.00%, ash content of 7.33%, carbon content of 81.67 %, iodine absorbtion capacity of 1091.426 mg/g, and methylene blue absorbtion capacity of 198.724 mg/g. These characteristics had met the SNI 06-3730-1995 standard about technical activated carbon. The surface area and surface acidity of this carbon was of 737.74m2/g and 0.5122 mmol/g respectively. The functional group analysis of the activated carbon showed the presence of O-H, carbonyls, alkynes, and esthers.

SINTESIS SENYAWA 2-CYANOPROP-2-YL DITHIOBENZOATE SEBAGAI CHAIN TRANSFER AGENT PADA POLIMERISASI REVERSIBLE ADDITION-FRAGMENTATION CHAIN TRANSFER James Sibarani; Oscar Yonathan Hambiyono; Manuntun Manurung; Ni Made Puspawati
CAKRA KIMIA (Indonesian E-Journal of Applied Chemistry) Vol 7 No 1 (2019): Volume 7, Nomor 1, 2019
Publisher : Magister Program of Applied Chemistry, Udayana University, Bali-INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (706.115 KB)

2-Cyanoprop-2-yl Dithiobenzoate merupakan salah satu transfer agen pada polimerisasi Reversible Addition-Fragmentation Chain Transfer (RAFT). Senyawa ini telah banyak digunakan dalam proses sintesis polimer yang diperuntukan dalam bidang kesehatan. Tujuan penelitian ini adalah untuk mensintesis 2-cyanoprop-2-yl dithiobenzoate. Senyawa tersebut disintesis elalui proses pembentukan senyawa asam ditiobenzoat dan di(tiobenzil) disulfida sebagai senyawa antara atau intermediet. Keberhasilan pembentukan senyawa target dipastikan dengan menggunakan Fourier Transform Infrared (FTIR) dan Nuclear Magnetic Resonance (13C-NMR dan 1H-NMR). Serapan pada bilangan gelombang 2239,36 cm-1 merupakan karakteristik untuk gugus (CN) dan serapan dengan bilangan gelombang 854 cm-1 dan 773 cm-1 merupakan karakteristik untuk gugus tiol (-C-SH). Sedangkan pada 1H-NMR terdapat serapan dengan pergeseran kimia 1,55 ppm yang mengindikasikan bahwa produk yang dihasilkan merupakan campuran. Spektra 1H-NMR memberikan pergeseran kimia pada 1,4 –1,7 ppm (proton CH3) dan 7,7 - 8,1 ppm (proton aromatik) . Spektra 13C-NMR memberikan pergeseran kimia 10,0 – 30,0 ppm (karbon CH3), 69,0 – 70,5 ppm (karbon OCH3), 120,00 – 121,00 ppm (karbon CN), 123,00 – 124,00 ppm (karbon S-C-CN), 130,00 – 140,00 ppm (karbon aromatik), dan 178,00 – 181,00 ppm (CS2). Dapat disimpulkan bahwa sintesis senyawa 2-cyanoprop-2-yl dithiobenzoate sudah berhasil dilakukan dengan rendemen sebesar 84,7%. The purpose of this study was to synthesize 2-cyanoprop-2-yl dithiobenzoate, one of the transfer agents on Reversibble Addition-Fragmentation Chain Transfer (RAFT) polymerizations widely used in polymer synthesis processes intended for health purposes. The compound was synthesized through the formation of dithioobenzoic acid and di(thiobenzyl) disulfide as intermediate compounds. The confirmation of the reaction was conducted by Fourier Transform Infrared (FTIR) and Nuclear Magnetic Resonance (1H-NMR and 13C-NMR). The FTIR spectrum confirmed the formation of the target compound with some characteristic bands at 2289.36 cm-1 assigned for –CN and at 854 cm-1 and 773 cm-1 assigend for –CS group. Moreover, the 1H-NMR spectrum showed chemical shifts at 1.4 – 1.7 ppm and 7.7 – 8.1 pmm assigned for –CH3 and aromatic protons respectively. The 13C-NMR spectrum showing chemical shifts at 10.0 – 30.0 ppm (-CH3), 69.0 – 70.5 ppm (-OCH3), 120.0 – 121.0 ppm (-CN), 123.0 – 124.0 ppm (-S-C-CN), 130.0 – 140.0 ppm (aromatic carbons), and 178.0 – 181.0 ppm (-CS2-) also confirmed the formation of the target compound. It can be concluded that the synthesis of 2-cyanoprop-2-yl dithiobenzoate has been successfully carried out with a yield of 84.7%.

UJI TOKSISITAS DAN IDENTIFIKASI EKSTRAK SPONS Haliclona fascigera TERHADAP LARVA Artemia salina L. Kadek Dewi Wirmandiyanthi; Manuntun Manurung; I Made Dira Swantara
CAKRA KIMIA (Indonesian E-Journal of Applied Chemistry) Volume 1, No. 1, 2013
Publisher : Magister Program of Applied Chemistry, Udayana University, Bali-INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (166.422 KB)

The main purpose of this research is to determine the toxicity of sponge Haliclona fascigera against larvae of Artemia salina and determine the compounds contained in the toxic isolates of sponge. The results showed chloroform fraction had the highest toxicity with LC50 of 63.10 ppm. Chloroform extracts were then separated by using eluent chloroform: ethyl acetate (8:2) and obtained five fractions. Based on the results of toxicity tests of the fifth fraction indicates the fraction 5 (F5) has the highest toxicity with LC50 of 89.13 ppm. Identification of toxic isolates F5 with GCMS show contained compound is 2-decenal, 3-eicosene, 6,10,14-trimethyl-2-pentadecanon, dibutyl-1,2-benzendikarboksilat, heksadekanoat acid, 4,8,12,16-tetramethylheptadecan-4-olide and dioctyl-1,2-benzendikarboksilat.

VARIASI KONSENTRASI DAN pH TERHADAP KEMAMPUAN KITOSAN DALAM MENGADSORPSI METILEN BIRU Turmuzi Tammi; Ni Made Suaniti; 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 effects of chitosan concentration and pH on adsorption properties of the chitosan extracted from shrimp shell waste to adsorb methylen blue had been studied. Chitosan was made by two steps namely the isolation of chitin and the chitin deacetylation. The chitin isolation itself was conducted by three sequence procedures which were deproteination, demineralization, and depigmentation. The deacetylation was conducted by heating the chitin obtained in the concentrated solution of NaOH 50% (w/v) at 90oC for 120 minutes. The degree of the deacetylation was 54,65%. The maximum concentration of 0,2% (w/v) at pH 7 showed the highest adsorption (%D) of 50 mL 10 ppm methylene blue of 95,044%.

AKUMULASI LOGAM BERAT KROM(Cr) PADA TANAMAN KENTANG (Solanum tuberosum L.)AKIBAT PEMBERIAN PESTISIDA, PUPUK ORGANIK DAN KOMBINASINYA M. Manurung1; Y. Setyo; N. P. N Repli Suandewi2
Jurnal Kimia (Journal of Chemistry) Vol.12 No.2 Juli 2018
Publisher : Program Studi Kimia, FMIPA, Universitas Udayana (Program of Study in Chemistry, Faculty of Mathematics and Natural Sciences, Udayana University), Bali, Indonesia

Pada saat ini para petani kentang cenderung berorientasi pada produksi yang tinggi, tanpa memperhatikan kualitas kentang yang dihasilkan, khususnya kandungan logam berat krom. Penelitian ini bertujuan untuk mengetahui pengaruh pemberian pupuk organik, pestisida dan kombinasinya terhadap peningkatan kadar logam berat krom (Cr), serta distribusinya pada tanaman kentang( Solanum tuberosum L.). Penelitian dilakukan dengan empat perlakuan yang berbeda yaitu; tanaman kentang tanpa perlakuan (P1), diberi pestisida( P2), diberi pupuk Organik (P3), diberi pestisida dan pupuk organik(P4). Pengamatan dilakukan mulai dari pembibitan hingga pada pasca panen. Akumulasi logam krom total pada setiap bagian tanaman dianalisis secara perodik,setiap bulan menggunakan spektofotometer serapan atom. Hasil penelitian menunjukkan bahwa lahan pertanian, pestisida, pupuk organik dan bibit kentang mengandung logam berat Cr. Pemberian pestisida, pupuk organik dan kombinasinya berperan dalam meningkatkan kandungan logam berat krom pada setiap bagian tanaman kentang. Kata kunci: kentang, kromium, logam berat, pestisida, pupuk oganik

PENGGUNAAN KITOSAN DARI LIMBAH KULIT UDANG SEBAGAI INHIBITOR KEASAMAN TUAK Fikriatun Nurhikmawati; Manuntun Manurung; A. A. I. A. Mayun Laksmiwati
Jurnal Kimia (Journal of Chemistry) Vol. 8, No. 2 Juli 2014
Publisher : Program Studi Kimia, FMIPA, Universitas Udayana (Program of Study in Chemistry, Faculty of Mathematics and Natural Sciences, Udayana University), Bali, Indonesia

The research has been conducted to determine the ability of chitosan from shrimp shell as an inhibitor of tuak acidity. Isolation of chitin is done through three stages, namely deproteination, demineralization, and depigmentation. The deacetylation process of chitin into chitosan was accomplished with 50% (w/v) NaOH with a ratio of 1:10 at 90oC for 120 minutes. 15.33 g chitin was gained (15.33%), and 9.94 g chitosan or 9.94% were obtained with a degree of deacetylation of 69.87%. The optimum concentration of kitosan to inhibit tuak pH changes was 2% (w/v) thus providing a longer shelf life with lowest acidity (pH).

EFEK PENAMBAHAN ANTIOKSIDAN EKSTRAK METANOL KULIT BUAH MANGGIS (Garcinia mangostana L.) TERHADAP PERUBAHAN KADAR FFA, BILANGAN ASAM, DAN BILANGAN PEROKSIDA BIODIESEL Ni Made Suaniti; Manuntun - Manurung; Ni Made Meryana Utari
Jurnal Kimia (Journal of Chemistry) Vol. 11. No. 1 Januari 2017
Publisher : Program Studi Kimia, FMIPA, Universitas Udayana (Program of Study in Chemistry, Faculty of Mathematics and Natural Sciences, Udayana University), Bali, Indonesia

Biodiesel merupakan salah satu bahan bakar alternatif yang beredar di pasaran. Agar stabil lebih lama maka kedalamnya ditambahkan antioksidan. Penambahan ekstrak metanol kulit buah (EMKB) manggis (Garcinia mangostana L.) sebagai antioksidan alami, diharapkan menjadi suatu pilihan. Penelitian ini bertujuan untuk mengetahui perubahan %FFA, BA, BP dari biodiesel akibat penambahan ekstrak metanol kulit buah manggis ke dalam biodiesel. Untuk maksud tersebut, biodiesel ditambahkan ekstrak metanol kulit buah manggis dengan variasi konsentrasi sebesar 0,01; 0,02; dan 0,03% b/v masing-masing sebagai A1; A2; dan A3. Biodiesel tersebut diuji nilai kadar FFA, bilangan asam, dan bilangan peroksida setiap minggu selama 6 minggu. Dari berbagai konsentrasi tersebut, biodiesel A1 merupakan konsentrasi terbaik dalam menghambat reaksi oksidasi biodiesel, dengan nilai kadar FFA, bilangan asam, dan bilangan peroksida paling rendah berturut-turut sebesar (0,24±0)%; (0,5252±0) mg KOH/g; dan (34,7511±0) meq peroksida/1000 g. Nilai bilangan asam tersebut telah sesuai dengan SNI 7182:2012.

UJI AKTIVITAS REPELAN MINYAK ATSIRI BUAH LILIGUNDI (Vitex trifolia Linn) TERHADAP NYAMUK AEDES AEGYPTI I Wayan Sugiri Adiyasa; Sri Rahayu Santi; Manuntun Manurung
Jurnal Kimia (Journal of Chemistry) Vol. 8, No. 1 Januari 2014
Publisher : Program Studi Kimia, FMIPA, Universitas Udayana (Program of Study in Chemistry, Faculty of Mathematics and Natural Sciences, Udayana University), Bali, Indonesia

The isolation and repellent activity of essential oil extracted from fruit of Vitex trifolia against Aedes aegypti has been done. Distillation of 15 kg samples produced 7,6 mL essential oils with 0,819 ± 0,05 g/mL of density and 0,0418% ± 0,01% (b/b) of yields. Identification with Gas Chromatography-Mass Spectrometry results showed that the essential oil composed of 16 compounds and was a rich source of ?-Pinene, Sabinene, 1,8-Cineol, and ?-Charyophyllene. Varied concentrations of the essential oil of 7,5%, 15%, and 20% solution in 96% ethanol and DEET 15% as positive control were tested for their repellent activities against Aedes aegypti. The result of ANOVA test showed that there was significant difference in protection abilities amongst the essential oil solutions for 6 hour test. The result of Tukey/HSD test showed that 15% and 20% of essential oils solutions possesed repellent activity as strong as positive control at first test and the 20% of essential oils solution possesed repellent activity as strong as positive control at first hour. Based on the above results it can be concluded that the essential oil of Vitex trifolia fruit posseses repellent activity against Aedes aegypti.

APLIKASI KULIT BUAH MANGGIS (Garcinia mangostana L.) SEBAGAI PEWARNA ALAMI PADA KAIN KATUN SECARA PRE-MORDANTING Manuntun Manurung
Jurnal Kimia (Journal of Chemistry) Vol. 6, No. 2 Juli 2012
Publisher : Program Studi Kimia, FMIPA, Universitas Udayana (Program of Study in Chemistry, Faculty of Mathematics and Natural Sciences, Udayana University), Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (215.996 KB)

The research about utilization of mangosteen skin as a natural dies on cotton by pre-mordanting methods with 1% (w/v) of lime water. The physical and chemical properties of the natural dies were tested using 1% w/v of detergent. The extraction of natural dye was conducted by heating in water with ratio 1:20 w/v for one hour. The results showed that the optimum mass of natural dye was adsorbed about 0.0402 g without mordant and the colour was light brown.The pre-mordanting method gives optimum mass of natural dyes adsorbed of 0.0637 g, which with reddish brwon color. The color was brighter and more resistant to detergent solution.

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

Title

Found 46 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 46 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 46 Documents
Search