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All Journal HAYATI Journal of Biosciences Jurnal Ilmu Pertanian Indonesia Jurnal Fitopatologi Indonesia MANAJEMEN IKM: Jurnal Manajemen Pengembangan Industri Kecil Menengah JURNAL BISNIS STRATEGI Jurnal Keteknikan Pertanian Jurnal Penelitian Hasil Hutan Jurnal Penelitian Pascapanen Pertanian Jurnal Pengkajian dan Pengembangan Teknologi Pertanian Jurnal Penelitian Tanaman Industri Buletin Teknologi Pasca Panen Indonesian Journal of Business and Entrepreneurship (IJBE) agriTECH Jurnal Aplikasi Bisnis dan Manajemen (JABM) E-Journal Jurnal Agroindustri Jurnal REKOMEN (Riset Ekonomi Manajemen) IJBE (Integrated Journal of Business and Economics) Jurnal Penelitian Pertanian Tanaman Pangan Jurnal Teknologi & Industri Hasil Pertanian Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) JURNAL PANGAN Jurnal Penelitian Hasil Hutan Jurnal Penelitian Tanaman Industri (Littri) Jurnal Penelitian Hasil Hutan
Rokhani Hasbullah
Departemen Teknik Mesin Dan Biosistem , IPB University
Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Medicine & Pharmacology Social Sciences

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Journal : Jurnal Keteknikan Pertanian

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Estimated Shelf Life of Torbangun Leaf Powder in Various Packaging Materials Lydia Ariani; Rokhani Hasbullah; Usman Ahmad
Jurnal Keteknikan Pertanian Vol. 9 No. 3 (2021): Jurnal Keteknikan Pertanian
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.09.3.95-102

Abstract

Bubuk daun torbangun mampu meningkatkan kualitas dan kuantitas air susu ibu pada ibu hamil dan menyusui karena mengandung senyawa bioaktif dari golongan fenol, terutama thymol dan carvacrol. Tujuan penelitian ini adalah mengkaji perubahan parameter bubuk daun torbangun (kadar air, asam lemak bebas, aktivitas antioksidan dan total fenol), dan menduga umur simpan bubuk daun torbangun dalam berbagai bahan kemasan. Metode Accelerated Shelf-Life Testing berdasarkan pendekatan Arrhenius digunakan untuk menduga umur simpan bubuk daun torbangun. Sebanyak 100 g bubuk daun torbangun disimpan dalam tiga bahan kemasan, yaitu HDPE, PP dan aluminium foil pada suhu 30oC, 35oC, 40oC, 45oC dan 50oC. Hasil penelitian menunjukkan bahwa suhu penyimpanan berpengaurh terhadap kadar air, asam lemak bebas, aktivitas antioksidan dan total fenol bubuk daun torbangun. Model Arrhenius dapat menggambarkan perubahan total fenol, dimana ln k= 28.29 -9746.8/T, ln k= 30.866 -10565/T dan ln k= 29.162 -10019/T berturut-turut untuk kemasan HDPE, PP dan aluminium foil. Dengan demikian, umur simpan bubuk daun torbangun pada suhu 15oC dan 28oC untuk kemasan HDPE, yaitu 691 hari dan 160 hari, disusul kemasan PP, yaitu 899 hari dan 184 hari, serta kemasan aluminium foil, yaitu 807 hari dan 173 hari.
Characteristics and Financial Feasibility of Gedong Gincu Mango Farming in Indramayu District khoirul umam; Rokhani Hasbullah; Mohamad Solahudin
Jurnal Keteknikan Pertanian Vol. 9 No. 3 (2021): Jurnal Keteknikan Pertanian
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.09.3.119-126

Abstract

Mangga gedong gincu merupakan salah satu varietas mangga yang menjadi primadona bagi masyarakat lokal maupun mancanegara karena memiliki kekhasan tersendiri jika dibandingkan dengan mangga jenis lainnya. Tujuan penelitian ini adalah untuk menganalisis : 1) Karakteristik usahatani mangga gedong gincu di kabupaten Indramayu, 2) Kelayakan finansial usahatani mangga gedong gincu, dan 3) Sensitivitas usahatani mangga gedong gincu terhadap perubahan biaya produksi, harga jual, jumlah produksi dan sewa lahan. Pengumpulan data dilakukan dengan cara observasi dan wawancara terhadap 16 orang petani responden pada bulan Oktober-November 2019. Hasil penelitian menunjukkan bahwa mangga gedong gincu memiliki potensi besar untuk terus dikembangkan. Biaya investasi awal yang dibutuhkan sebesar Rp 52,226,667,-/ha dan untuk pemeliharaan selanjutnya rata-rata Rp. 8,284,000 -/ha/bulan. Pada tingkat suku bunga 8.75% menunjukkan bahwa usahatani mangga gedong gincu layak untuk dikembangkan dengan nilai NPV Rp. 39,289,514, IRR 91.00% dan B/C 1,43. Berdasarkan analisis sensitivitas faktor paling menentukan pendapatan (untung/rugi) petani mangga gedong gincu di kabupaten Indramayu adalah penurunan harga jual dan jumlah hasil produksi serta jika terjadi kenaikan biaya produksi, harga jual dan jumlah produksi sekaligus.
Performance Analysis of Vapor Compression Heat Pump Dryer for Zedoary Drying (Curcuma zedoaria (Berg.) Roscoe) Hayatri Sali Setia; Leopold Oscar Nelwan; I Wayan Astika; Rokhani Hasbullah
Jurnal Keteknikan Pertanian Vol. 10 No. 2 (2022): Agustus 2022
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.010.2.123-132

Abstract

Zedoary (Curcuma zedoaria (Berg.) Roscoe) drying in simplicia form requires a proper treatment because the moisture content is high about 80–90 % that have perishable properties. Temperature, relative humidity and air flow rate are influential factors in drying medicinal plants then proper drying conditions need to be known. Dryer with vapor compression heat pump (VCHP) system is one of mechanical dryers as an alternative drying method to shorten drying time and maintain the quality. In this system, the environmental air flow is passed through the evaporator and condenser. The configuration of air flow passing through these two components is assessed in proportion to increase its effect on drying air conditions. The study aims to find the best configuration of air flow rate from VCHP which produces drying air conditions that are suitable for zedoary drying then analyze the performance of VCHP. The research was conducted by configuring the air flow and analyzing dryer performance of VCHP system. The results obtained the best configuration of air flow for zedoary drying are: (i) the air inlet before evaporator is given an inhibitor, (ii) the air inlet before condenser is closed. This configuration provides the highest sensible heating effect and the highest decrease in drying air humidity. VCHP performance test results for zedoary drying are: (i) COPhp is 3.11, (ii) STEC value is 4.066 MJ/kg, (iii) SMERT value is 0.870 kg/kWh, and (iv) SMERTot value is 0.449 kg/kWh. The STEC, SMERT and SMERTot values obtained are affected by drying time.
Artificial Neural Networks to Predict Melon (cucumis melo L.) Production in Tropical Greenhouse, Indonesia Erniati Erniati; Herry Suhardiyanto; Rokhani Hasbullah; Supriyanto Supriyanto
Jurnal Keteknikan Pertanian Vol. 11 No. 2 (2023): Jurnal Keteknikan Pertanian
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.011.2.193-204

Abstract

Quality of melon indicated by size (fruit weight), appearance, and sweetness. In Indonesia, weight of high quality melon was 800 to 1,200 grams each. Mainly, the melon was cultivated in open fields during the dry season with several limitations of cultivation. To cope with those problems, melon was cultivated inside the greenhouse. However, there are several parameters influenced to melon quality inside the tropical greenhouse with hydroponic system. There were a few studies on the prediction model development of melon inside the greenhouse in a tropical area, Indonesia. The aim of this study was to develop an artificial neural networks (ANNs) model to predict the melon production inside the greenhouse (fruit weight) using several parameters such as the number of days to fruit formation, number of days to maturity, plant length, fruit width, fruit length, fruit cavity diameter, flesh diameter, branch number, fruit branch number, and leaf number. The result of this study was the ANN model with configurations of 10 input layers, 6 hidden layers, and 1 output layer with R2 was 0.93. This study concluded that there is a correlation between the input parameters with the weight of the melon.
Shelf life prediction of cacao powder using isothermic sorption approach Hasbullah, Rokhani; Mahdania, Nadya Fazira Islah
Jurnal Keteknikan Pertanian Vol. 11 No. 3 (2023): Jurnal Keteknikan Pertanian
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.011.3.294-306

Abstract

Tujuan dari penelitian ini adalah menentukan model kurva sorpsi isotermis bubuk kakao dan menduga umur simpan bubuk kakao pada kemasan standing pouch aluminium foil dan kraft dengan pendekatan sorpsi isotermis. Penelitian ini diawali dengan pembuatan bubuk kakao, penentuan kadar air bubuk kakao pada berbagai kelembaban relatif (RH) penyimpanan dan pendugaan umur simpan bubuk kakao pada kemasan standing pouch aluminium foil dan kraft dengan pendekatan sorpsi isotermis . Bubuk kakao diperoleh dengan cara menggiling menggunakan mesin pembubuk kakao dan mengayaknya menggunakan ayakan Tyler dengan ukuran mesh 60. Kadar air kesetimbangan (KAK) bubuk kakao diperoleh dengan menyimpan bubuk kakao pada berbagai kelembaban relative (RH) menggunakan larutan garam jenuh MgCl2, K2CO3, NaNO2, NaCl dan KCl. Model sorpsi isotermis diperoleh dengan memplotkan KAK dengan nilai aktivitas air (aw) (RH/100). Hasil penelitian menunjukkan bahwa model Hasley merupakan model paling tepat untuk menggambarkan fenomena sorpsi isotermis bubuk kakao dengan nilai Mean Relative Determination (MRD) paling kecil yaitu 2.007. Umur simpan bubuk kakao yang simpan dengan kemasan standing pouch aluminium foil pada penyimpanan suhu 30 °C dan kelembaban relatif (RH) 75% dan 80% berturut-turut adalah 665 hari dan 514 hari. Sedangkan dengan kemasan standing pouch kraft selama 293 hari dan 227 hari.
Optimizing Coffee Flavor Through Roasting and Manual Brewing Using Chemical and Sensory Approach: English Sukmawati, Elya; Pertiwi, Setyo; Hasbullah, Rokhani
Jurnal Keteknikan Pertanian Vol. 13 No. 3 (2025): Jurnal Keteknikan Pertanian
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.013.3.402-417

Abstract

The global popularity of coffee has led to growing attention on how processing and brewing techniques influence its sensory attributes. This study analyzed the chemical content of coffee and assessed the combination of roasting and manual brewing methods on coffee flavor. The coffee types used were Arabica coffee and Robusta coffee. The roasts used were light, medium, and dark roast with AeroPress, Siphon, and V60 manual brewing methods. The experiment was arranged in a factorial arrangement within a Randomized Complete Block Design (RCBD), where coffee varieties served as blocks, and the treatment combinations of roasting and brewing methods were randomly assigned within each block. Data analysis includes two-way analysis of variance, biplot analysis, and the compromise programming method. The results showed that the selection of roast level and brewing method had a significant influence on the coffee's chemical analysis and sensory profile. Light roasting and complex flavors were more acceptable than dark roasting, which tends to be heavy. Based on the panelists' preference analysis using the compromise programming method, RLS (Robusta-Light roast-Siphon) emerged as the optimal choice, indicating that this combination balances all coffee taste criteria. The combinations ALV (Arabica-Light roast-V60), ALA (Arabica-Light roast-Aeropress), and AMA (Arabica-Medium roast-Aeropress) which tends to similar and provide a balanced, complex flavor profile, including aroma, acidity, and high overall quality. Arabica coffee combination ADS (Arabica-Dark roast-Siphon), ADA (Arabica-Dark roast-Aeropress), and ADV (Arabica-Dark roast-V60) which have less optimal visual and balance because dark roasting reduces the sensory criteria of coffee.
Co-Authors . Setiadjit . Sukarno . Sutrisno Abdul Waries Patiwiri Achmad Fitrah Maulidin Addiena Syahvina Nasution Adhitya Yudha Pradhana Agus Ghautsun Niam Agus Sutejo Ahmad Yani Ahmad Yani Alhori Alhori Ali Parjito Amzul Rifin Andi Suryadi Anggitha Ratri Dewi Arief Daryanto Arif Imam Suroso Arif Suroso Aris Purwanto Astu Unadi Budi Nurtama Budi Rahardjo Cicih Sugianti Dadang . Damanik, Annisa Purnamasari Deasy Fitriani Desy Nofriati Desy Nofriati Deva Primadia Almada Dikky Indrawan Dondy A Setyabudi Dondy A Setyabudi DS Priyarsono Dwi Zuwarman Edi Suryanto Edy Hartulistiyoso Eka Priyana Elisa Nur Faizaty Elpodesy Marlisa Emmy Darmawati Erniati Erniati Erniati Esa Ghanim Fadhallah Eti Rohaeti Fahim M Taqi Firdaus, Jonni Graita Gaiety Jatmiko Harli Prawaningrum Hartoyo Hasniar . Hayatri Sali Setia Heriyanto S Soba Herry Suhardiyanto I Wayan Astika I Wayan Budiastra Idham Sakti Harahap Indrawan, Raden Dikky Indrawan Iriando Wijaya Ita Zuraida Iyus Hendrawan Iyus Hendrawan Jayawarsa, A.A. Ketut Jeffrey Fransiscus Juniska Muria Sariningpuri Kaltika Setya Utami Sumariana Khoirul Mukhtarom Khoirul Umam Kristianingsih, - Latief, Prori Vitaliano Lidya Susanti Lilik Pujantoro Lilik Pujantoro Eko Nugroho Lista Eka Yulianti Lydia Ariani Machfud Machfud Machfud Machfud Mahasin, M. Zaenal Mahdania, Nadya Fazira Islah Maya Wulan Arini Memen Surahman Michael Alexander Hutabarat Mohamad Rahmad Suhartanto Mohamad Solahudin MUHAMMAD YUSUF ANTU Muhammad Yusuf Antu Nanik Purwanti Nelwan, Leopold Oscar nFN Setyadjit nFN Sukarno Nunung Nuryartono Nurfadhillah, Salsa Nurhayati Nurhayati Nurman Susilo Nurul Imamah Nuzul Syah Putra Okky Setyawati Dharmaputra Parlaungan Adil Rangkuti Patiwiri, Abdul Waries Pramita Riskia D. P Purwiyatno Hariyadi Renny Anggraini Ridwan Rachmat Rimba Lestari Rio Viryawan Riska Indaryani Riska Juliana Rizal Syarief RIZAL SYARIEF Rizal Syarief Rofika Rochmawati Rozana - Ruri Wijayanti Salsa Nurfadhillah Selvi Marcellia Setiadjit Setiadjit Setyo Pertiwi Sidiq, Fajar Slamet Budijanto Sugiyono Sugiyono Sugiyono Sugiyono Sukarno Sukarno Sukmawati, Elya Sulusi Prabawati Sunandar, Muhammad Prayoga Supriyanto Supriyanto Supriyanto Suroso . Suroso Suroso Susi Lesmayati Susilo, Nurman SUTRISNO Sutrisno , Sutrisno - Sutrisno Mardjan Sutrisno Sutrisno Sutrisno Sutrisno Tajuddin Bantacut Tjahja Muhandri Tri Yulni Ujang Sumarwan Usman Ahmad Warji Warji Yudha Heryawan Asnawi