Article Per Year (5 Year)
p-Index From 2020 - 2025
5.546
P-Index
This Author published in this journals
All Journal Jurnal Penelitian Saintek Proceedings of Annual International Conference Syiah Kuala University - Life Sciences & Engineering Chapter Jurnal Teknologi Pertanian agriTECH Indonesian Journal of Chemistry SINTECH (Science and Information Technology) Journal Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Jurnal Serambi Engineering Agroteknika Agro Bali: Agricultural Journal Jurnal Kedokteran Hewan Jurnal Ilmiah Mahasiswa Pertanian Rona Teknik Pertanian Jurnal Pengabdian Mahakarya Masyarakat Indonesia
Agus Arip Munawar
Department Of Agricultural Engineering, Syiah Kuala University, Aceh
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Mechanical Engineering Medicine & Pharmacology Veterinary Other

Published : 45 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 4 Documents
Search
Journal : Rona Teknik Pertanian

 1 
The Application of Fourier Transform Infrared Photoacoustics Spectroscopy (FTIR-PAS) for Rapid Soil Quality Evaluation Ichwana Ichwana; Zulkifli Nasution; Agus Arip Munawar
Rona Teknik Pertanian Vol 10, No 1 (2017): Volume 10, No. 1, April 2017
Publisher : Department of Agricultural Engineering, Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17969/rtp.v10i1.6984

Abstract

Abstrak. Tanah merupakan media tumbuh tanaman dan berperan dalam menjaga keseimbangan alam. Evaluasi kualitas dan kesuburan tanah menjadi hal penting dan merupakan pekerjaan rutin pada crop management system. Untuk memonitor dan menentukan kualitas tanah, beberapa metode telah diterapkan. Akan tetapi, metode tersebut berbasis pengukuran laboratorium yang melibatkan bahan kimia, memerlukan waktu yang lama dan kurang efektif pada aplikasinya. Infrared spectroscopy muncul sebagai salah satu teknologi yang cepat, simultan dan ramah lingkungan untuk digunakan dalam evaluasi kualitas dan kesuburan tanah dengan memprediksi nutrisi tanah yang utama berupa C, N, P dan K. Spektrum transmisi infrared (IR) diakuisisi pada panjang gelombang 1000-2500 nm dengan menerapkan metode photo-acoustic spectroscopy (PAS). Pendekatan metode Least square-support vector machine regression (LS-SVM) digunakan untuk memprediksi parameter nutrisi tanah. Hasil studi menemukan bahwa parameter C dan N pada tanah dapat diprediksi dengan sempurna karena C-N mengalami stretching akibat serapan gelombang IR. Sedangkan unsur nutrisi lain seperti P, K, Mg, Ca, S dapat diprediksi dengan maksimum residual predictive deviation (RPD) index maksimum 1.9. Lebih lanjut, lempung tanah, air tanah, dan mikroba tanah kemungkinan dapat diklasifikasi dengan baik dengan metode IR-PAS dan bantuan metode klasifikasi least-square discriminant analysis (LS-DA) dan cluster analysis (CA). Berdasarkan hasil studi, dapat disimpulkan bahwa teknologi FTIR-PAS dapat digunakan untuk real-time monitoring kualitas dan kesuburan tanah. The Application of Fourier Transform Infrared Photoacoustics Spectroscopy (FTIR-PAS) for Rapid Soil Quality Evaluation Abstract. The major function of soil is to provide fundamental natural resources for survival of plants, animals, and the human race. Soil functions depend on the balances of its structure and composition, well as the chemical, biological, and physical properties. It is become one important key aspect and routine activity in crop management system. To monitor and determine soil quality properties, several methods were already widely used in which most of them are based on solvent extraction followed by other laboratory procedures. However, these methods often require laborious and complicated processing for samples. They are time consuming and destructive. In last few decades, the application of infrared spectroscopy as non-destructive technique in determining soil quality properties (C, N, P and K) rapidly and simultaneously. Fourier transform infrared spectrum (FTIR) were acquired in wavelength range from 1000 to 2500 nm with applying photo-acoustic spectroscopy (PAS). Least square-support vector machine regression (LS-SVM) approach was then applied to predict soil quality properties. The results showed that C and N can be predicted accurately using FTIR-PAS whilst other parameters (P, K, Mg, Ca, S) can be predicted with maximum RPD index is 1.9. Moreover, soil clay, moisture and soil microbes were feasible to be detected by using FTIR-PAS combining with discriminant analysis (LS-DA) or cluster analysis (CA). It may conclude that FTIR-PAS technology can be used as a real time method  in monitoring soil quality and fertility properties.
Near Infrared Technology As a Robust and Environmental Friendly Approach To Biofuel Analysis: Rapid Biodiesel Classification and Quality Prediction Agus Arip Munawar; Kiman Siregar; Agussabti Agussabti
Rona Teknik Pertanian Vol 10, No 2 (2017): Volume 10, No. 2, Oktober 2017
Publisher : Department of Agricultural Engineering, Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17969/rtp.v10i2.10005

Abstract

Abstract. The use of ethanol and biodiesel, which are alternative fuels or biofuels, has increased in the last few years. Modern official standards list 25 parameters that must be determined to certify biodiesel quality. In order to determine biofuel quality, several methods were already widely used in which most of them were based on solvent extraction followed by other laboratory procedures. Yet, these methods are expensive, laborious and complicated processing for samples. Near infrared reflectance spectroscopy (NIRS) can be considered as a fast, pollution-free and non-destructive method in determining biofuel quality parameters. The objective of this study is to apply near infrared technology in classifying biodiesel based on KOH (0.3, 0.5 and 0.7) and to predict related biodiesel quality properties (water content, linolenic fatty acid, oleic acid,  and stearic acid) based on its infrared reflectance. Biodiesel infrared spectrum was acquired in wavelength range from 1000 to 2500 nm for different mentioned three KOH content. Principal component analysis (PCA) with non-iterative partial least square (NIPALS) was applied to analyze biodiesel spectral data. The result showed that two principal components (PC1=97% ad PC2 = 2%) based on infrared reflectance data were successfully able to recognize and classify biodiesel based on their used KOH. Moreover, the wavelength range of 1000 – 1140 were to be believed related to linolenic fatty acid whilst 1450 nm and 1930 nm were associated with water content. Stearic acid can be predicted in wavelength range of 1330 – 1380 nm and wavelength range of 1725 – 1790 nm were related to oleic acid of biodiesel. This may conclude that infrared technology was feasible to use as a rapid, effective and non-invasive method in biofuel classification and evaluation.
Fast And Simultaneous Prediction Of Agricultural Soil Nutrients Content Using Infrared Spectroscopy Devianti Devianti; Zulfahrizal Zulfahrizal; Sufardi Sufardi; Agus Arip Munawar
Rona Teknik Pertanian Vol 12, No 1 (2019): Volume 12, No. 1, April 2019
Publisher : Department of Agricultural Engineering, Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17969/rtp.v12i1.11656

Abstract

Abstract. The functions soil depends on the balances of its structure, nutrients composition as well as other chemical and physical properties. Conventional methods, used to determine nutrients content on agricultural soil were time consuming, complicated sample processing and destructive in nature. Near infrared reflectance spectroscopy (NIRS) has become one of the most promising and used non-destructive methods of analysis in many field areas including in soil science. The main aim of this present study is to apply NIRS in predicting nutrients content of soils in form of total nitrogen (N). Transmittance spectra data were obtained from a total of 18 soil samples from 8 different sites followed by N measurement using standard laboratory method. Principal component regression (PCR) with full cross validation were used to develop and validate N prediction models. The results showed that N content can be predicted very well even with raw spectra data with coefficient correlation (r) and residual predictive deviation index (RPD) were 0.95 and 3.35 respectively. Furthermore, spectra correction clearly enhances and improve prediction accuracy with r = 0.96 and RPD = 3.51. It may conclude that NIRS can be used as fast and simultaneous method in determining nutrient content of agricultural soils.
Pengaruh Variasi Suhu Terhadap Kualitas dan Biaya Pengeringan Irisan Jeruk Nipis (Citrus aurantifolia Swingle) Agustina, Raida; Munawar, Agus Arip; Tasya, Yulia
Rona Teknik Pertanian Vol 18, No 2 (2025): Volume No. 18, No. 2, Oktober 2025
Publisher : Department of Agricultural Engineering, Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17969/rtp.v18i2.49597

Abstract

Abstrak. Jeruk nipis kering berpotensi digunakan sebagai bahan alternatif dalam pembuatan infused water yang lebih aman dibandingkan jeruk nipis segar karena masa simpannya lebih panjang dan risiko pertumbuhan mikroorganismenya lebih rendah. Pengeringan turut berperan mempertahankan kualitas serta nilai gizi, sehingga produk tetap bermanfaat saat dikonsumsi. Penelitian ini bertujuan mengevaluasi pengaruh variasi suhu pengeringan terhadap mutu irisan jeruk nipis sekaligus menganalisis aspek biaya prosesnya. Rancangan penelitian menggunakan Rancangan Acak Lengkap (RAL) dengan lima taraf suhu, yaitu 40C, 50C, 60C, 70C, dan 80C. Parameter mutu yang diamati meliputi kadar air, laju pengeringan, dan kadar vitamin C. Analisis ekonomi mencakup biaya tetap, biaya variabel, biaya total, biaya pokok pengeringan, dan rasio B/C. Hasil penelitian menunjukkan bahwa suhu pengeringan tidak berpengaruh nyata terhadap kadar air akhir, tetapi berpengaruh signifikan terhadap kadar vitamin C. Suhu 80C menghasilkan laju pengeringan tertinggi dengan waktu tercepat (420 menit), namun menurunkan kadar vitamin C lebih besar. Sebaliknya, pengeringan pada 40C mampu mempertahankan kadar vitamin C lebih tinggi, meskipun membutuhkan waktu lebih lama (25 jam). Analisis ekonomi menunjukkan nilai rasio B/C1, yang mengindikasikan bahwa proses pengeringan jeruk nipis kering layak secara finansial dan berpotensi untuk dikembangkan pada skala agroindustri kecil hingga menengah.The Effect of Temperature Variation on the Quality and Cost of Drying Lime Slices (Citrus aurantifolia Swingle)Abstract. Dried lime has the potential to be used as an alternative ingredient in the preparation of infused water, offering greater safety compared to fresh lime due to its longer shelf life and lower risk of microbial growth. The drying process also plays an important role in maintaining the quality and nutritional value of lime, ensuring that it remains beneficial for consumption. This study aimed to evaluate the effect of different drying temperatures on the quality of lime slices as well as to analyze the economic aspects of the drying process. The experiment was arranged using a Completely Randomized Design (CRD) with five levels of drying temperature: 40C, 50C, 60C, 70C, and 80C. The quality parameters observed included moisture content, drying rate, and vitamin C content. The economic analysis covered fixed costs, variable costs, total costs, unit cost of drying, and the B/C ratio. The results showed that drying temperature had no significant effect on the final moisture content but significantly affected the vitamin C content. Drying at 80C produced the highest drying rate with the shortest processing time (420 minutes) but resulted in a greater reduction of vitamin C. Conversely, drying at 40C retained higher vitamin C content, although it required a longer drying time (25 hours). The economic analysis indicated a B/C ratio greater than 1, demonstrating that the lime drying process is financially feasible and has the potential to be developed on a small- to medium-scale agroindustry.
Co-Authors . Ichwana ., Jauharlina Abuijal Muhammad Rifaldi Agussabti Agussabti Annisa Azzahra Aulia Ifnu Akbar Br Padang, Sheila Saharani Cut Dahlia Iskandar Darwin Darwin Desi Nanda Sari Devianti Devianti Devianti Devianti Devianti Devianti Devianti Devianti Dewi Sri Jayanti Dian Sri Bintang Hasiholan Manihuruk Diding Suhandy Diswandi Nurba, Diswandi Dwi Anindea Putri Endamin Endamin Fachruddin Fachruddin Fitria Nisak Fredinan Yulianda Giar Pramanda Putra Hairatun Hairatun Hasanuddin Hasanuddin Hayati Zahra Hesti Meilina Ichwana Ichwana Ichwana Ramli Ichwana Ramli Indera Sakti Nasution Ine Elisa Putri Ine Elisa Putri Intan Ratna Juwita Irfan Maibriadi Khairul Abdi Ruslana Khairul Abdi Ruslana Kiman Siregar Kusumiyati Masdar Masdar Mohd Nazar Isza Putra Muaida Alfia Mubarak Hulda Muhammad Ikhram Muhammad Ikhsan Sulaiman Muhammad Zikri Pratama Munanda Irawan Murtahar Murtahar Muslem Muslem Mustaqimah Mustaqimah Najla Mumtazmi Nasrul Arahman Nur Alfah Puji Meihani Qurratul Zulmi Raida Agustina Raida Agustina Raida Agustina Ramayanty Bulan Ratna Ratna Ratna Ratna Ratna Ratna Ridwan Ridwan rina aulia barus Rina Aulia Barus Riska Nurul Saputri Rita Khathir Rita Zahara Salman Rivaldi Solly Aryza Sri Aprilia Sri Purnama Sari Sufardi Sufardi Suswita Sari Syahrul Ramadhan Syaubari syaubari Tasya, Yulia Teuku Hafidh Tyas Al Khalis Yesi Ardiani Yovita Amanda Yuda Hadiwijaya Yusmanizar Yusmanizar Yusril Agus Putra Yuswar Yunus Z Zainuddin Zainuddin, Z Zikrul Khalid Zulfahrizal Zulfahrizal zulfahrizal zulfahrizal Zulfahrizal Zulfahrizal Zulfahrizal Zulfahrizal Zulfahrizal Zulfahrizal Zulkifli Nasution