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All Journal JURNAL KIMIA SAINS DAN APLIKASI Jurnal Riset Industri Hasil Hutan At-Taqaddum Konversi QUANTUM: Jurnal Inovasi Pendidikan Sains Jurnal Fisika FLUX Panrita Abdi - Jurnal Pengabdian pada Masyarakat Indonesian Journal of Chemistry Justek : Jurnal Sains Dan Teknologi Chemistry Indonesian Journal of Chemical Research JURNAL SELULOSA Walisongo Journal of Chemistry PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Molekul: Jurnal Ilmiah Kimia Jurnal Pengabdian Al-Ikhlas Jurnal Jejaring Matematika dan Sains Jurnal Sylva Scienteae Jurnal Pengabdian Ilung (Inovasi Lahan Basah Unggul) Jurnal Ilmiah Berkala: Sains dan Terapan Kimia Jurnal AGRISEP: Kajian Masalah Sosial Ekonomi Pertanian dan Agribisnis Abdimas Mandalika

Sunardi, Ph.D., Sunardi

Chemistry Department, Faculty Of Mathematics And Natural Science, Lambung Mangkurat University Banjarbaru 70714 Indonesia

Author-ID : 921847

Religion Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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Pretreatment Lignoselulosa dari Jerami Padi dengan Deep Eutectic Solvent untuk Meningkatkan Produksi Bioetanol Generasi Dua (Lignocellulose Pretreatment of Rice Straw using Deep Eutectic Solvent to Increase Second-Generation Bioethanol Production) Nurwahdah, Nurwahdah; Naini, Al-Arofatus; Nadia, Asma; Lestari, Ratri Yuli; Sunardi, Ph.D., Sunardi
Jurnal Riset Industri Hasil Hutan Vol 10, No 1 (2018)
Publisher : Kementerian Perindustrian

Current issues of energy sector in Indonesia can be summarized as depletion of fossil energy reserves which is dominated by fuel oil and coal. Oil production continues to decline and the increase in oil fuels demand lead to increase imports of crude oil and oil fuels. To use lignocellulosic biomass waste has become a major alternative to replace fossil fuels and chemical feedstocks production. In 2015, total rice production in South Kalimantan reached 2,140,276 ton and rice straws were abundant waste which could be utilized as raw material for bioethanol production. Pretreatment process of lignocellulose is a crucial step to remove lignin because of the complex chemical cross-linking between chemical components. Delignification of lignin can increase the accessibility and digestibility of enzymatic, and help to promote enzymatic hydrolysis. Nowadays, pretreatment process with green chemistry method is continuesly developed by researcher to reduce the production costs and thus avoid adverse effects on human and the environment. This article disscussed about green methods for pretreatment of lignocellulosic material using deep eutectic solvent (DES) to increase second-generation bioethanol production in South Kalimantan.

Potensi Nanoselulosa untuk Agen Slow Release Bahan Alam: Review : Potential of Nanocellulose for Slow-Release Agents of Natural Materials: Review Salsabila Aqila Putri; Ratih Febrianti; Sunardi Sunardi
Jurnal Jejaring Matematika dan Sains Vol. 2 No. 2 (2020): Edisi Desember 2020
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jjms.2020.v2.i2.406

Cellulose is the most abundant polymer on earth consisting of ?-l, 4 glycoside rings bound to ?-D-glucose. Cellulose can be obtained from various wood and non-wood sources. Nanocellulose is one of the cellulose derivatives that have the potential to be developed as a carrier agent for natural materials to increase their bioactivity and bioavailability. Nanocellulose, which is cellulose with a nano-size (1-100 nanometer), has been proved as one of the functional material sources that have superior properties due to its attractive and excellent characteristics such as high aspect ratio, better mechanical properties, biocompatibility renewable, and abundance. This paper discusses the sources, production methods, and applications of nano cellulose as a slow-release agent for various natural materials to an applications of biomedical, cosmetic, and biotechnology.

Sintesis dan karakterisasi bioplastik dari pati ubi nagara dengan kaolin sebagai penguat Sunardi Sunardi, Ph.D.; Yulia Susanti; Kamilia Mustikasari
Jurnal Riset Industri Hasil Hutan Vol 11, No 2 (2019)
Publisher : Kementerian Perindustrian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24111/jrihh.v11i2.5084

Penelitian tentang sintesis dan karakterisasi bioplastik dari pati ubi Nagara dengan penambahan kaolin telah dilakukan. Sintesis bioplastik dilakukan dengan metode melt intercalation dengan variasi jumlah kaolin 0-30% (b/b). Tujuan dari penelitian ini adalah untuk mengetahui pengaruh penambahan kaolin terhadap karakteristik bioplastik serta untuk mendapatkan jumlah kaolin optimum dalam pembuatan bioplastik. Bioplastik yang dihasilkan dianalisis kadar air, ketebalan, laju transmisi uap air, ketahanan air, kelarutan, biodegradasi, analisis gugus fungsional menggunakan FTIR, kuat tarik dan elongasinya. Berdasarkan hasil penelitian yang diperoleh, penambahan kaolin mempengaruhi semua karakteristik bioplastik yang dihasilkan. Nilai kuat tarik bioplastik yang dihasilkan meningkat dengan bertambahnya kaolin yang ditambahkan. Konsentrasi kaolin optimum dalam pembuatan bioplastik adalah pada penambahan 30% (b/b) kaolin dengan nilai kuat tarik sebesar 2,194 N/mm2.

Praperlakuan secara Hidrotermal Limbah Lignoselulosa untuk Produksi Bioetanol Generasi Kedua (Pretreatment of Lignocellulose Wastes Using Hydrothermal Method for Producing Second Generation Bioethanol) Al-Arofatus Naini; Nurwahdah Nurwahdah; Ratri Yuli Lestari; Sunardi Sunardi, Ph.D.
Jurnal Riset Industri Hasil Hutan Vol 10, No 2 (2018)
Publisher : Kementerian Perindustrian

The second generation of bioethanol derived from various cellulosic biomass materials is one of the latest renewable energy as the alternative of fossil fuel. The cellulosic waste based wood and non-wood materials are the most abundant natural resource on the earth, renewable, and inexpensive. Currently, second generation bioethanol development is still not optimally done due to various obstacles, especially the pretreatment process to eliminate lignin, influencing the conversion process of cellulose into reducing sugar. Hydrothermal method is one of lignocellulose pretreatments, which is widely developed because this method is relatively cheap and environmentally friendly with the utilization of water-based solvent. Hydrothermal methods performed at high temperature and pressure in a relatively short time are able to deconstruct the lignocellulose structure that enables cellulase enzymes to access cellulose for hydrolysis. This study discussed about the development of hydrothermal method for lignocellulose pretreatment process to increase production of second-generation bioethanol. Some aspects studied in this research were structural change, chemical composition, lignocellulosic crystallinity before and after hydrothermal processes, and hydrothermal effect on the production of reducing sugars. Hydrothermal method could be used and developed as an efficient and cheap method as the first treatment of lignocellulose waste in attempt to increase the production of bioethanol.

Kinerja Mengajar Dosen pada Masa Work From Home Lulu Choirun Nisa; Alfin Hikmaturrokhman; Sunardi Sunardi
At-Taqaddum Vol 12, No 2 (2020)
Publisher : Quality Assurance Institute (LPM) State Islamic University Walisongo Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/at.v12i2.7025

The Covid-19 pandemic has caused universities to adapt to various changes, especially lecture activities. The purpose of this article is to describe how lecturers carry out the teaching and learning process during a pandemic. The indicators are teaching methods, technology, schedules, evaluation techniques, and constraints. The data collection technique used a survey approach with 216 respondents. The analysis and discussion results show that the teaching method uses online discussions, online assignments, and virtual face-to-face meetings. In terms of technology, the majority of lecturers use the WA Group application, and the rest uses other media. For learning schedule indicators, the majority of lecturers deliver online learning according to the schedule. In evaluation techniques, most lecturers use online tests or quizzes to assess student achievement. The implementation of distance learning has obstacles, namely the achievement and competence of skills and technical barriers, such as signals, devices, and practical delivery skills.

ISOLATION OF MICROCRYSTALLINE CELLULOSE FROM MEDANG WOOD (Neolitsea latifolia) Sunardi Sunardi; Amelia Lestari; Ahmad Budi Junaidi; Wiwin Tyas Istikowati
Konversi Vol 8, No 2 (2019): Oktober 2019
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/k.v8i2.6881

Abstract - Research on the effect of the use of HCl concentrations in the hydrolysis process of cellulose from medang wood (Neolitsea latifolia) on the characteristics of microcrystalline cellulose has been studied. The purpose of this study was to determine the effect of HCl concentration on the characteristics of microcrystalline cellulose. The analysis carried out included yield, pH, color, functional group characterization using FTIR and crystallinity index using XRD. The hydrolysis process was carried out at 105 °C for 15 minutes with variations in HCl concentrations of 1.5 N, 2.5 N and 3.5 N. Based on the results of the research conducted, the results showed that the use of variations in the concentration of HCl in the hydrolysis process affected the yield, color, TCI (Total Crystallinity Index) value of FTIR data and crystallinity index of XRD data. The yield of microcrystalline cellulose produced from each variation of concentration was 64.41, 61.94 and 53.99. The color of microcrystalline cellulose is getting darker as the concentration of HCl is used. Based on FTIR data, the TCl value of microcrystalline cellulose from each variation of concentration was 0.861%, 0.907% and 0.976%. XRD data shows an increase in crystallinity index produced from each variation in concentration on microcrystalline cellulose amounted to 80.52%, 82.17% and 83.49%.

ANALISIS SPEKTROSKOPI INFRAMERAH TRANSFORMASI FOURIER (FTIR) DAN PERUBAHAN WARNA LIGNOSELULOSA ALANG-ALANG (Imperata cylindrica) SETELAH PRETREATMENT MENGGUNAKAN ASAM ENCER Asma Fauziah; Rodiansono Rodiansono; Sunardi Sunardi
Konversi Vol 8, No 1 (2019): April 2019
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/k.v8i1.6506

Abstrak. Alang-alang (Imperata cylindrica) mengandung sekitar 59% holoselulosa dan dapat digunakan sebagai bahan baku bioetanol. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh pretreatment menggunakan asam encer terhadap karakteristik struktur kimia pada lignoselulosa alang-alang. Pretreatment dilakukan menggunakan asam encer dengan konsentrasi H2SO4 1%, 2%, 3% dan 4% pada suhu 210°C dalam autoclave selama 45 menit. Analisis perubahan struktur secara kimia setelah pretreatment dengan asam encer dilakukan menggunakan Spektroskopi Inframerah Transformasi Fourier (FTIR). Analisis perubahan warna dilakukan dengan metode CIELAB. Hasil yang diperoleh dari spektra FTIR mengindikasikan bahwa asam encer mendekontruksi strukur kimia dari alang-alang dengan melarutkan hemiselulosa selama proses pretreatment. Perubahan warna (ΔE) berkolerasi dengan modifikasi struktur kimia pada lignoselulosa alang-alang. Kata Abstrak. Alang-alang (Imperata cylindrica) mengandung sekitar 59% holoselulosa dan dapat digunakan sebagai bahan baku bioetanol. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh pretreatment menggunakan asam encer terhadap karakteristik struktur kimia pada lignoselulosa alang-alang. Pretreatment dilakukan menggunakan asam encer dengan konsentrasi H2SO4 1%, 2%, 3% dan 4% pada suhu 210°C dalam autoclave selama 45 menit. Analisis perubahan struktur secara kimia setelah pretreatment dengan asam encer dilakukan menggunakan Spektroskopi Inframerah Transformasi Fourier (FTIR). Analisis perubahan warna dilakukan dengan metode CIELAB. Hasil yang diperoleh dari spektra FTIR mengindikasikan bahwa asam encer mendekontruksi strukur kimia dari alang-alang dengan melarutkan hemiselulosa selama proses pretreatment. Perubahan warna (ΔE) berkolerasi dengan modifikasi struktur kimia pada lignoselulosa alang-alang. Kata kunci: Imperata cylindrica, hidrotermal, asam encer, FTIR

MODEL ADSORPSI TIMBAL (Pb) DAN SENG (Zn) DALAM SISTEM AIR-SEDIMEN DI WADUK RIAM KANAN KALIMANTAN SELATAN Chatimatun Nisa; Utami Irawati; Sunardi Sunardi
Konversi Vol 2, No 1 (2013): April 2013
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/k.v2i1.118

Logam berat merupakan unsur yang seringkali menjadi polutan utama dalam pencemaran air dan dapat membahayakan kehidupan organisme. Penelitian ini bertujuan untuk memprediksi pola perpindahan ion logam Pb dan Zn dari badan air ke sedimen berdasarkan fenomena adsorpsi isoterm di waduk Riam Kanan Kecamatan Aranio Kabupaten Banjar. Selain itu , penelitian ini diharapkan dapat memberikan informasi terhadap rona awal waduk Riam Kanan, dinamika, dan keadaan ion logam Pb dan Zn di sepanjang waduk Riam Kanan dari hulu hingga hilir. Metode yang digunakan adalah Standar Nasional Indonesia (SNI) dengan menggunakan instrumen Spektrofotometer Serapan Atom (AAS). Hasil analisis laboratorium diperoleh rata-rata kandungan Pb di air sebesar 0,0494 ppm – 0,2582 ppm, Zn sebesar 0,0002 ppm – 0,0370 ppm, sedangkan sedimen Pb sebesar 6,8311 mg/kg – 21,1756 mg/kg dan Zn 3,3778 mg/kg – 28,3522 mg/kg. Berdasarkan data percobaan ternyata perpindahan ion logam Pb dan Zn ke sedimen akan mengikuti model adsorpsi Langmuir dengan koefisien determinasi (R2) sebesar 0,8167 dan 0,8801. Keywords: Model adsorpsi, logam berat (Pb dan Zn), air, sedimenHeavy metals are often considered as main contaminant in water pollution and its highly dangerous for living organisms in the contaminated area. The aim of this research is to predict the movement pattern of Pb and Zn metal ions from water onto sediment in the Riam Kanan Reservoir, Aranio Sub-district, Banjar District. In addition, this study is expected to give information on the initial condition of Riam Kanan reservoir; dynamics; and the fate of Pb and Zn ions from upstream to downstream. The samples were analysed using AAS (Atomic Absorption Spectrophotometer) based on the Indonesian National Standard (SNI). Result of laboratory analysis showed that in the water, contents of metal Pb were 0.0494 ppm – 0.2582 ppm, Zn 0.0002 ppm – 0.0370 ppm. In the sediment, contents of Pb were 0.8311 mg/kg – 21.1756 mg/kg and Zn 3.3778 mg/kg – 28.3522 mg/kg. Based on the experimental data, it was found that the displacement of Pb and Zn onto sediment complies with Langmuir adsorption model where the determination coefficient (R2) were 0.8167 and 0.8801 respectively. Keywords: Adsorption model, heavy metal (Pb and Zn), water, sediment

POTENSI LIMBAH LIGNOSELULOSA KELAPA SAWIT DI KALIMANTAN SELATAN UNTUK PRODUKSI BIOETANOL DAN XYLITOL Asma Nadia; Asma Fauziah; Ersha Mayori; Sunardi Sunardi
QUANTUM: Jurnal Inovasi Pendidikan Sains Vol 8, No 2 (2017): Oktober 2017
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/quantum.v8i2.4012

Abstract. The oil palm is type of plantation sector with the largest commodity being developed by state-owned, private-companies, and also smallholders in South Kalimantan. The total area and production of oil palm in 2017 in South Kalimantan are 455.674 ha and 1.3 million ton, respectively. Oil palm wastes such as empty fruit bunch and oil palm frond are residue from palm oil industry can be utilized as cellulose and hemicellulose feedstock which can be converted into second-generation bioethanol as fuel substitute and xylitol as low caloric sweetener for sugarcane substitute. This article to discuss the potential, process, and opportunity for utilization of lignocellulosic waste of oil palm in South Kalimantan as raw material for bioethanol and xylitol.Keywords: lignocellulose, oil palm, bioethanol, xylitol

Karakterisasi Kaolin Lokal Kalimantan Selatan Hasil Kalsinasi Sunardi Sunardi; Utami Irawati; Totok Wianto
Jurnal Fisika FLUX Vol 8, No 1 (2011): Jurnal Fisika Flux Edisi Februari 2011
Publisher : Lambung Mangkurat University Press

Kajian tentang karakteristik kaolin lokal asal Tatakan, Tapin, KalimantanSelatan setelah proses kalsinasi pada temperatur 800°C selama 3 jam telah dilakukanuntuk mengetahui perubahan struktur kaolin. Sampel kaolin sebelum dan setelahproses kalsinasi dianalisis menggunakan spektroskopi infra merah (FTIR), difraksisinar X (XRD) dan scanning electron microscopy (SEM). Hasil analisis menggunakanFTIR menunjukkan terjadinya kerusakan struktur dari kaolin akibat proses kalsinasiyang ditandai dengan hilangnya puncak serapan khas dari kaolin. Berdasarkan dataXRD dan analisis morfologi menggunakan SEM, proses kalsinasi menyebabkanperubahan struktur kaolin dari pseudoheksagonal berlapis menjadi fasa amorf.

Co-Authors Abdullah Abdullah Adhi Surya Ahmad Budi Junaidi Akhmad Fauzan Al-Arofatus Naini Alfin Hikmaturrokhman Amelia Lestari Aminuddin Prahatama Putra Aminuddin Prahatama Putra Anak Agung Ayu Ratih Frismanti Anang Kadarsah Anang Kadarsah Anisa Norhidayah Asma Fauziah Asma Fauziah Asma Nadia Asmianoor Latifah Aulia Rahman Maulana Azidi Irwan Budi Sutiya Budi Sutiya Chatimatun Nisa Dahlena Ariyani Dahlia Nuraini Pasaribu Daniel Itta Debi Imam Saputra Desmalina Safitri Eko Suhartono Eko Suhartono Eko Suhartono Eny Dwi Pujawati Erni Puryati Ningsih Ersha Mayori Evita Sari Gunawan Gusti Nia Faramitha Hafizianor Hafizianor Hanna Habibah Henny Amelia Ishiguri Futoshi Kamilia Mustikasari Khairun Athiya Khoerul Anwar Khoirun Nisa Kissinger Kissinger Krisdianto La Ode Muh Munadi Lestari, Ratri Yuli Lilik Nofianti Lisa Andriana Kristy Lulu Choirun Nisa Muhammad Arief Soendjoto Muhammad Rais Arifin Muslih Anwar Nadia, Asma Naini, Al-Arofatus Nina Noviyanti Noer Komari Nor Pana Yupa Nur Firda Trianda Nurul Hidayanti Nurwahdah Nurwahdah Nurwahdah, Nurwahdah Ratih Febrianti Ratri Yuli Lestari Rina Muhayah Noor Pitri Risaldi Ridwan Rizki Fitria Rodiansono Rodiansono Salsabila Aqila Putri Salsabila Aqila Putri Siti Hadijah Suraida Suraida Sutarno Sutarno Sutarno Sutarno Sutarno Sutarno Syaifuddin Syaifuddin Totok Wianto Uripto Trisno Santoso Utami Irawati Wiwin Tyas Istikowati Yateman Arryanto Yateman Arryanto Yateman Yateman Arryanto Yokota Shinso Yulia Susanti Zainal Abidin

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