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All Journal VALENSI Jurnal Natur Indonesia Gorga : Jurnal Seni Rupa The Journal of Pure and Applied Chemistry Research Jurnal Riset Kimia PROSIDING SEMINAR KIMIA MUDRA Jurnal Seni Budaya Indonesian Journal of Chemistry Dance and Theatre Review: Jurnal Tari, Teater, dan Wayang Batoboh : Jurnal Pengabdian Pada Masyarakat Jurnal Ecolab JURNAL PHOTON PROSIDING: SENI, TEKNOLOGI, DAN MASYARAKAT PROPORSI : Jurnal Desain, Multimedia dan Industri Kreatif Jurnal Riset Teknologi Pencegahan Pencemaran Industri Warta Pengabdian Andalas: Jurnal Ilmiah Pengembangan Dan Penerapan Ipteks REACTOR : Journal of Research On Chemistry And Engineering Journal of Multidisciplinary Applied Natural Science JURNAL KIMIA SAINTEK DAN PENDIDIKAN Jurnal Natural SAINTI: Majalah Ilmiah Teknologi Industri
Novesar Jamarun
Universitas Andalas
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Transesterification of Palm Oil Catalyzed by CaO/SiO2 Prepared from Limestone and Rice Husk Silica Sri Elfina; Kamisah Delilawati Pandiangan; Novesar Jamarun; Fejri Subriadi; Hafnimardiyanti Hafnimardiyanti; Roswita Roswita
Journal of Multidisciplinary Applied Natural Science Vol. 4 No. 1 (2024): Journal of Multidisciplinary Applied Natural Science
Publisher : Pandawa Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47352/jmans.2774-3047.185

Abstract

In this study, CaO/SiO2 composites were prepared from rice husk silica (RH-SiO2) and limestone from a local company. The composites with different mass ratios of CaO to SiO2 (1:1, 1:2, 1:3, 1:5, and 1:10) were synthesized using the sol-gel technique and characterized using XRF, XRD, and SEM. The composites were then used as catalysts for the transesterification of palm oil, with the main purpose to investigate the effect of catalyst compositions on the percentage of conversion of the oil. The results of XRD and SEM confirm the existence of RH-SiO2 as an amorphous material, and CaO as crystalline material, while the composites are a mixture of amorphous and crystalline phases. The catalysts were then used in transesterification experiments and the percentage of oil conversion was calculated. To confirm the successful conversion of palm oil into fatty acid methyl esters, the products of the reactions were analyzed using GC-MS. The experimental results demonstrated that the composites prepared exhibit catalytic activity, with the highest conversion (60%) achieved using the catalyst with the CaO to SiO2 ratio of 1:3.
The effect of maleic anhydride concentration in manufacturing polypropylene grafted maleic anhydride compatibilizer on the test percent of grafting degree TANJUNG, DENNY AKBAR; JAMARUN, NOVESAR; LUBIS, ROSLIANA
Jurnal Natural Volume 24 Number 2, June 2024
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jn.v24i2.35317

Abstract

The difference in polarity between materials often prevents direct interaction; therefore, a compatibilizer is required to facilitate reactions between polar and non-polar substances. This study aims to investigate the effect of maleic anhydride (MA) concentration on the grafting process of MA onto polypropylene (PP) chains, using benzoyl peroxide (BPO) as an initiator. The blending method employing an internal mixer was used to combine the materials, and the degree of grafting was determined via titration, with three replicates performed for accuracy. The results indicated that the highest grafting degree, 10.28%, was achieved at a composition of 86% PP, 11% MA, and 3% BPO. Fourier Transform Infrared (FTIR) spectroscopy analysis of polypropylene grafted with maleic anhydride (PP-g-MA) revealed new absorption peaks at wavenumbers 1707 cm and 1162 cm. Furthermore, increasing the concentration of maleic anhydride did not significantly affect the grafting degree. This study provides valuable insight for the development of PPg-MA compatibilizers.
Synthesis and Characterization of Hydroxyapatite/Alginate Composites: Study of pH and Sintering Influenced on the Structural, Morphological, and Clindamycin Release Behavior Wulandari, Wulandari; Islami, Dini Muthi'ah; Jamarun, Novesar; Wellia, Diana Vanda; Emriadi, Emriadi
Indonesian Journal of Chemistry Vol 24, No 2 (2024)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.84558

Abstract

The hydroxyapatite/alginate (HAp/Alg) composite was synthesized using an in-situ precipitation route. The effect of pH (8, 9, 10, and 11) and calcination temperature (300, 500, 700, and 900 °C) were studied by characterization techniques such as X-ray diffraction (XRD), Fourier-transform infrared (FTIR), and scanning electron microscopy with energy-dispersive X-ray (SEM with EDAX). XRD results show the hexagonal crystal system of HAp for each pH value and the biphase (HAp and whitelockite) for the sintering temperature at 700 and 900 °C. The FTIR spectra show no impurity peaks. SEM images revealed spherical-like (HAp/Alg-11) and flake-like (HAp/Alg-900) particles with good homogeneity, size, and shape that could be notable for biomedical utilization, such as drug delivery material. Drug loading and release ability of pure HAp, HAp/Alg-11, and HAp/Alg-900 composites have been investigated with clindamycin hydrochloride as the drug model. The maximum clindamycin HCl release from HAp, HAP/Alg-11, and HAp/Alg-900 reached 74.48, 92.75, and 69.65% in the 8th hour. HAp/Alg-11 has the highest release because it has the largest surface area of 162.584 m2/g. Antibacterial test results showed HAp/Alg-11 has antibacterial activity against Staphylococcus aureus and Escherichia coli, confirming that HAp/Alg-11 composite has the potential to be applied as drug delivery.
Effect of Temperature on Synthesis of Hydroxyapatite/Chitosan Composite Using the In-Situ Method as a Heavy Metal Adsorbent Jamarun, Novesar; Amirullah, Tri Yupi; Syukri, Syukri; Prasejati, Arika; Wulandari, Wulandari; Caniago, Sintia; Tricahyani, Nabiila Ayyu
Indonesian Journal of Chemistry Vol 25, No 1 (2025)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.93816

Abstract

Removing hazardous non-organic waste containing heavy metals like copper and lead is crucial for environmental protection. Adsorption offers a promising solution, with hydroxyapatite (HAp) serving as a biocompatible adsorbent due to its active surface area. However, its mechanical limitations necessitate enhancement through compositing with chitosan (CTS), a natural biopolymer. This study synthesized hydroxyapatite from cuttlefish bone as a calcium source, while chitosan was extracted from shrimp shells. The hydroxyapatite/chitosan (HAp/CTS) composites were prepared in situ at varying temperatures (55, 60, 65, 70, and 75 °C). The composites were characterized using FTIR, XRD, SEM, and SAA. The result indicated successful integration of HAp and CTS, with a crystallite size of 13.82 nm in the 65 °C composite. Based on SEM-EDS analysis, the HAp/CTS 65 °C morphology was agglomerated chunk particles with a Ca/P ratio of 1.61. The highest adsorption capacity value is found in the HAp/CTS 65 °C composite for both ions, 1.9979 mg/g for Cu2+ ions and 0.9965 for Pb2+ ions. The reusability test results of the HAp/CTS 65 °C composite succeeded up to two cycles. This research proves that the adsorption of Cu2+ and Pb2+ ions by HAp/CTS composite adsorbent has been successfully carried out.
Assessing the water quality in the Timbalun river watershed, Padang City, West Sumatra, Indonesia HAR, RUSLI; TANJUNG, DENNY AKBAR; JAMARUN, NOVESAR
Jurnal Natural Volume 25 Number 1, February 2025
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jn.v25i1.42009

Abstract

The purpose of this study is to assess water quality, specifically pH, conductivity, total dissolved solids (TDS), salinity, and turbidity. The research utilizes quantitative methods and covers 15 sampling points across the Timbalun River basin in Padang City, West Sumatra, Indonesia. Samples were measured based on several parameters, with three repetitions for accuracy. The testing took place from August to September 2024. The results showed that some water quality parameters, such as pH and total dissolved solids, met the standards outlined by Ministry of Health Regulation No. 2 of 2023. However, other parameters, including salinity, conductivity, and turbidity, did not meet the specified thresholds. It is essential to implement treatment measures to ensure the water meets the required standards for its intended use.
Effect of Sodium Citrate and Urea as Additive on the Synthesis of Hydroxyapatite from Blood Cockle Shells: Kinetics and Adsorption Isotherms Study of Coomassie Brilliant Blue Putri, Dhea Rahmanda; Jamarun, Novesar; Septiani, Upita; Sisca, Vivi
Indonesian Journal of Chemistry Vol 25, No 4 (2025)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.102465

Abstract

Hydroxyapatite (HAp) was synthesized from blood cockle shell waste by the sol-gel method, incorporating sodium citrate and urea as additives for Coomassie brilliant blue (CBB) adsorption. The synthesis included HAp without additives (HAp 1) and with 30 g/L of urea and varying sodium citrate concentrations of 0 (HAp 2), 0.1 (HAp 3), 0.2 (HAp 4), 0.3 (HAp 5), 0.4 (HAp 6), and 0.5 (HAp 7) g/L. HAp 4 showed the highest adsorption capacity at 96.60 mg/g. FTIR analysis of HAp 4 revealed adsorption bands for O−H and PO43− groups. XRD analysis indicated a crystal size of 24.55 nm with low crystallinity. SEM-EDS analysis showed a Ca/P ratio of 1.28, with an irregular shape due to agglomeration and an average particle size of 1.16 µm. SAA analysis found a surface area of 107.18 m2/g, a pore size of 12.55 nm, and a pore volume of 0.36 cm3/g. HAp 4 followed the Langmuir and pseudo-second-order isotherm models in CBB adsorption and demonstrated five-time reusability, proving it to be an effective adsorbent for CBB dyes.
PELATIHAN INSTRUMEN MUSIK TRADISIONAL MINANGKABAU DI MAN 2 GUNUNG PADANGPANJANG Darmansyah, Darmansyah; Jamarun, Novesar; Firdaus, Firdaus; Arifin, Indra
Batoboh Vol 1, No 2 (2016): Batoboh -Jurnal Pengabdian Pada Masyarakat
Publisher : Institut Seni Indonesia Padangpanjang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26887/bt.v1i2.159

Abstract

Kesenian tradisional berfungsi memperkuat kebudayaan nasional dan memperkuat identitas bangsa. Agar kesenian tradisional bisa bertahan dari perkembangan zaman, maka diperlukan alih generasi. Salah satu bentuk alih generasi adalah pelatihan alat musik tradisi dilingkungan sekolahmenengah MAN 2 Gunung Padangpanjang.Kegiatan alih generasi kesenian tradisi dilakukan dalam kegiatan ekstra kurikuler kesenian disekolah tersebut. Permasalahan yang diangkat adalah kurangnya literatur kesenian tradisi dan terbatasnya tenaga pelatih yang dibutuhkan dalam kegiatan ekstra kurikuler kesenian disekolah menengah. Metode pelatihan yang dipakai adalah menggunakan metode imited singing yaitu melatih dengan mencontohkan langsung cara memainkan alat musik tradisi, dan siswa menirukannya. Melalui pelatihan ini diharapkan siswa-siswa sekolah menengah mengenal kesenian tradisional, dapat memainkan alat musik tradisi, sehingga dapat menumbuhkan rasa suka dan meningkatkan kepedulian siswa-siswa pada kesenian tradisi sebagai milik mereka yang harus dijaga dan dipertahankan. Kata kunci; kesenian tradisional,pelatihan alat musik tradisi
Sintesis Precipitate Calsium Carbonat Sebagai Filler Pada Plastik Ramah Lingkungan Elfina, Sri; Jamarun, Novesar; Djamaan, Akmal
REACTOR: Journal of Research on Chemistry and Engineering Vol. 1 No. 1 (2020)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/reactor.v1i1.4

Abstract

Limestone is a mineral which is very abundant in Indonesia, especially in West Sumatra. Limestone is synthesized for making Precipitate Calcium Carbonate as a filler in plastics. The results of studies conducted on Precipitate Calcium Carbonate fillers from limestone based on X-RD, FTIR and SEMEDX analysis results, it can be concluded that the compound synthesized from limestone CaO is Precipitate Calcium Carbonate with aragonite and calcite crystal types. While the BET test showed a specific surface area of Precipitate Calcium Carbonate with a value of 7.315 m2 / g. Environmentally friendly plastic surfaces with the addition of Precipitate Calcium Carbonate filler were characterized using AFM obtained Rq value of 0.43 µm.
PERANCANGAN PERTUNJUKAN OPERA MINANGKABAU MALIN NAN KONDANG SEBAGAI ALIH WAHANA KABA MALIN KUNDANG SUISNO, EDY; ISWANDI, ISWANDI; PRAMUTOMO, R.M; SUPARLI, LILI; JAMARUN, NOVESAR
Dance and Theatre Review Vol 4, No 1: May 2021
Publisher : Institut Seni Indonesia Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24821/dtr.v4i1.4373

Abstract

Perancangan Pertunjukan Opera Minangkabau Malin Nan Kondang sebagai Alih Wahana KabaMalin Kundangadalah proses penciptaan pertunjukan Opera Minangkabau yang bertitik tolak dari penafsiran ulang kaba Malin Kundang. Proses penciptaan pertunjukan Opera Minangkabau tersebut, diawali dari sebuah riset terhadap berbagai penafsiran atas kaba Malin Kundang sebagai titik tolak terbentuknya penafsiran baru atas kaba tersebut..Penafsiran baru tersebut kemudian dikreasi untuk menghasilkan bentuk lakon baru, yang kemudian diberi judul Malin Nan kondang.Lakon baru inilah yang menjadi pijakan dalam perancangan pemanggungan (spektakel) yang mencirikan sebuah pertunjukan Opera Minangkabau.Penuangan tersebut merupakan bentuk perancangan yang dimulai dari analisis lakon, pembuatan adegan demi adegan dan penempatan aspek pendukung opera yang meliputi gerak, dendang dan penghayatan seni peran. Aksentuasi opera diwujudkan dengan penggunakan ragam seni tradisi Minangkabau bagi kebutuhan perancangan Opera Minangkabau secara keseluruhan. Aksentuasi itu meliputi dialog dengan dendang, penggunaan koreografi dan paduan suara dan dialog yang berbentuk puisi.Kata kunci : Kaba Malin Kundang; Lakon Malin Nan Kondang; Opera Minangkabau
Co-Authors -, Yulfitrin Adlis Santoni Ahmad Hafizullah Ritonga Aju Deska Akmal Djamaan Amirullah, Tri Yupi Anggresani, Lia Arifin, Indra Aritonang, Barita Arizal Firmansyah Asril Asril Boy Isfa Boy isfa Budi Hermawan BUSTANUL ARIFIN Caniago, Sintia Cici Wulandari DARMANSYAH . Denny Akbar Tanjung Denny Akbar Tanjung Didik Prasetyoko Edy Suisno Elfina, Sri Emriadi - Fachry Abda El Rahman Fadhilatul Khaira Fejri Subriadi Firdaus Firdaus G Gunawarman, G Giovani Giovani Hafnimardiyanti Hafnimardiyanti Hamzah Hamzah Hamzah Hamzah Hamzar Suyani HAR, Rusli Heri Satria Hermansyah Aziz Hermawan, Budi Ilim Ilim Islami, Dini Muthi'ah Iswandi Iswandi Kamisah Delilawati Pandiangan Kamisah Delilawati Pandiangan Lia Anggresani Lisa Utami Lisa Utami Mansur Halilintar Matlal Fajri Alif Nabiila Ayyu Trycahyani Nanda Raudhatil Jannah Navisha Yustitia Norman Ferdinal Olly Norita Tetra PRAMUTOMO, R.M Prasejati, Arika Putri, Dhea Rahmanda R.Y. Perry Burhan, R.Y. Perry Restina Bemis Restina Bemis, Restina Reza Audina Putri Risma Sari Rosliana Lubis Rosta Minawati Rosta Minawati Roswita Roswita Rycce Sylviana Pratikha Rycce Sylviana Pratikha Safni Safni Selfa Dewati Samah Selvi K asman Sisca, Vivi Solly Aryza Sri Elfina Sri Elfina Suarnikan Hulu Sumaryati Syukur Suparli, Lili Surya Darma Susas Rita Loravianti Syukri - Syukri - Syukri Arief Syukri Syukri Tanjung, Denny Akbar Tricahyani, Nabiila Ayyu Trio Saputra Upita Septiani Vivi Sisca Vivi Sisca Wasinton Simanjuntak Wellia, Diana Vanda Wulandari Wulandari Yulfitrin - Yuli Yetri Yuli Yetri Yulia Eka Putri, Yulia Eka Yulidar Laila Safitri Yulizar Yusuf Yundari, Yundari Zetra, Yulfi Zilfa Zilfa