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SSRN 2024年

作者： Wijayanto, Arif Kurnia Prasetyo, Lilik Budi Hudjimartsu, Sahid Agustian Sigit, Gunardi Hongo, Chiharu Department of Forest Resource Conservation and Ecotourism Faculty of Forestry and Environment IPB University Bogor16680 Indonesia Ronpaku Fellow Tokyo102-0083 Japan Environmental Research Center IPB University Bogor16680 Indonesia Study Program of Information Technology Faculty of Science and Engineering Ibn Khaldun University Bogor16129 Indonesia Regional Office of Food Crops Service West Java Province Cianjur43283 Indonesia Chiba University Chiba263-8522 Japan

Detecting Bacterial Leaf Blight (BLB) in paddy fields is one of the essential issues in Indonesia to prevent losses in rice production. This study reports the effectiveness of textural analysis using drone-acquired data over paddy fields in West Java, evaluating the potential of integrating textural and thermal characteristics. We used drone data combined with machine learning techniques to distinguish different levels of BLB impact. The normalized difference texture index derived from Haralick textural features was used as a predictor. The findings revealed that incorporating textural features enhanced the disease detection accuracy significantly compared with the traditional approach based on spectral indices. The random forest algorithm, which merges texture and vegetation indices, achieved a classification accuracy of 0.984. The proposed method offers a robust, noninvasive solution for BLB disease detection, contributing substantially to safeguarding crop yields and mitigating global food security issues. © 2024, The Authors. All rights reserved.

关键词： Drones

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Nutritional, chemical, and prospect of "mandai," traditional fermented food of Kalimantan

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Journal of Ethnic foods 2025年第1期12卷 1-9页

作者： Yudistira, Sukma Amaliah, Nur Gozali, Gozali Purwaningrum, Hesti Gusriza, Fondina Sari, Rini Eka Kuntari, Erlina Daru Wibowo, Singgih Tri Yelfiarita, Yelfiarita Malik, Shintami Rouwelvia Wigati, Dyan Sulistiadi, Slamet Department of Tourism Universitas Negeri Padang West Sumatera Padang 25131 Indonesia Faculty of Food Science Mulawarman University East Kalimantan Samarinda 75123 Indonesia Department of Tourism Balikpapan State Polytechnic East Kalimantan Balikpapan 76126 Indonesia Sekolah Tinggi Pariwisata Ambarrukmo STIPRAM Bantul Yogyakarta 55198 Indonesia Department of Tourism Universitas Pembangunan Nasional Veteran Jawa Timur East Java Surabaya 60294 Indonesia Tour and Travel Business Department of Business Administration Politeknik Negeri Padang 25142 West Sumatera Padang Indonesia Universitas Mahakarya Asia Sleman Yogyakarta 55285 Indonesia Department of Travel Politeknik Pariwisata NHI Bandung East Java Bandung 40141 Indonesia Department of Agricultural Business Politeknik Pertanian Negeri Payakumbuh West Sumatera Limapuluh Kota 26271 Indonesia Program Studi Agribisnis Fakultas Pertanian Universitas Tadulako Central Sulawesi Kota Palu 94148 Indonesia Bachelor of Pharmacy Study Program Faculty of Health Sciences Universitas Dr Soebandi East Java Jember 68111 Indonesia Agriculture and Biosystem Engineering Faculty of Science and Technology Universitas Nahdlatul Ulama Purwokerto Central Java Banyumas 53145 Indonesia

Mandai, a traditional fermented delicacy, is produced from the inner peel of the cempedak fruit (Artocarpus champeden). This unique food is a culinary heritage of the Banjar ethnic group residing in Kalimantan, and is part of Indonesia’s rich collection of traditional fermented foods. This study aimed to analyze mandai by examining its fermentation processes and chemical and nutritional composition. It also discusses the potential and prospects of mandai development in the future. Through a narrative literature review, this study synthesized insights into mandai, emphasizing its significance as a functional food with rich antioxidant and probiotic properties. This review also shows that processing mandai through starter-induced fermentation can improve its quality and standards. This study serves as an important foundation for future mandai research by emphasizing the functional benefits and processing methods of mandai. © The Author(s) 2025.

关键词： Mandai Mandai chemical Mandai nutrition Potentials mandai Prospect mandai Traditional fermented food

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The Design of Automatic Sprinkler based on Arduino Uno Microcontroller 3

The Design of Automatic Sprinkler based on Arduino Uno Micro...

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3rd International Symposium on Agricultural and Biosystem engineering, ISABE 2019

作者： Priyati, A. Sahbandi, M. Putra, G.M.D. Setiawati, D.A. Study Program of Agricultural Engineering Faculty of Food and Agroindustrial Technology Universitas Mataram NTB Mataram Indonesia

The purpose of this study was to design a microcontroller based automatic plant watering system. The method used was an experimental method using two sensors, i.e. soil moisture sensor (measure soil moisture) and ultrasonic sensors (measure the distance of rotary direction regulator for DC motors). Arduino board is preferable as the main controller due to its simplicity. Tool testing was conducted through trials on soil samples and performance tests when the tool was operating. The parameters observed were solar intensity (Lux), ambient temperature (°C), RH (%), water discharge (ml/s), DC motor axis rotation (rpm), AC and DC voltage (Volt), and soil moisture (%). The tool testing showed that the designed watering system could works properly with less than 10% MAPE. When the sensor read the soil moisture value below 70% setting point, the pump and DC motor were turned on. Whereas, when the soil moisture value achieved 80% setting point, the pump and DC motor were turned off. Performance test was conducted for three days of observation. The founding shows that the designed automatic watering system could successfully provide as much as 2.52 litre of water during approximately 6 minutes of watering period. © 2019 IOP Publishing Ltd. All rights reserved.

关键词： DC motors

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Dual template using P123-gelatin for synthesized large mesoporous silica for enhanced adsorption of dyes

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South African Journal of Chemical engineering 2023年 43卷 312-326页

作者： Safitri, Widiya Nur Habiddin, Habiddin Ulfa, Maria Trisunaryanti, Wega Bahruji, Hasliza Holilah, Holilah Rohmah, Alya Awinatul Sholeha, Novia Amalia Jalil, Aishah Abdul Santoso, Eko Prasetyoko, Didik Department of Chemistry Faculty of Science and Data Analytics Institut Teknologi Sepuluh Nopember East Java Keputih Sukolilo Surabaya 60111 Indonesia Chemistry Education Study Program Faculty of Teacher Training and Education Universitas Sebelas Maret Jl. Ir. Sutami 36A Surakarta 57126 Indonesia Department of Chemistry Faculty of Science Universitas Gadjah Mada Sekip Utara Sleman Indonesia Centre for Advanced Material and Energy Sciences Universiti Brunei Darussalam Bandar Seri Begawan BE 1410 Brunei Darussalam Research Center for Biomass and Bioproducts National Research and Innovation Agency of Indonesia (BRIN) Cibinong 16911 Indonesia Department of Food Science and Technology Faculty of Agriculture Halu Oleo University Indonesia College of Vocational Studies Bogor Agricultural University (IPB University) Jalan Kumbang No. 14 Bogor 16151 Indonesia Department of Chemical Engineering Faculty of Chemical and Energy Engineering Universiti Teknologi Malaysia 81310 UTM Johor Skudai Johor Bahru Malaysia

Mesoporous Silica with a large mesopore channel was synthesized using the sol-gel method for dye adsorption. A dual template consisting of P123 and gelatin at different ratios was employed in the sol-gel synthesis to enhance surface area and mesopore diameter. Gelatin is a green pore directing agent that strengthens P123 thermal stability during the calcination of silicate gel. Optimization of P123:gelatin ratio to 1:0.02 increased the surface area of mesoporous silica to 561.9 m²/g and expanded the pore diameter to 10 nm. The large pore diameter and surface area enhanced methylene blue adsorption capacity to 363.63 mg/g. The adsorption of methylene blue on mesoporous silica follows the pseudo second-order kinetic and the Langmuir model. Regeneration studies using thermal and chemical treatments exhibited the potential of mesoporous silica as an adsorbent for multiple adsorption-desorption of dyes. © 2022 The Author(s)

关键词： Dual template Dye Gelatin Mesoporous silica Pluronic P123

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Upcycling can waste and plastic bottle as functional material: Analysis of green process and simultaneous adsorption-photocatalytic performances

Case Studies in Chemical and Environmental Engineering

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Case Studies in Chemical and Environmental engineering 2025年 11卷

作者： Nurherdiana, Silvana Dwi Rahimah, Alya Dirja, Ramadhanu Tungga Dewi, Kun Prasasti Ramadhani, Mohamad Rizki Nugraha, Reva Edra Fitriana Wafi, Abdul Master of Environmental Science Study Program Faculty of Engineering and Science Universitas Pembangunan Nasional Veteran Jawa Timur Jl. Rungkut Madya No. 1 Gn. Anyar Kec. Gunung Anyar East Java Surabaya 60294 Indonesia Study Program of Chemical Engineering Faculty of Engineering and Science Universitas Pembangunan Nasional Veteran Jawa Timur Jl. Rungkut Madya No. 1 Gn. Anyar Kec. Gunung Anyar East Java Surabaya 60294 Indonesia Low Carbon Technology Research Centre Universitas Pembangunan Nasional Veteran Jawa Timur Jl. Rungkut Madya No.1 Gn. Anyar Kec. Gunung Anyar East Java Surabaya 60294 Indonesia Department of Physics Universitas Negeri Surabaya East Java Surabaya 60231 Indonesia Research Center for Food Technology and Processing National Research and Innovation Agency (BRIN) Gading Playen Gunungkidul Yogyakarta 55861 Indonesia

This study presents an investigation of chemical and physical characterization, green process analysis, techno-economic considerations, and carbon emissions for synthesizing metal-organic frameworks (MOFs) from plastic and can waste using microwave-assisted synthesis. The microwave-assisted synthesis proves to be more cost-effective, with a reduction in CO₂ emissions by up to 80%. The synthesized material (MIL-Mw-U) demonstrates excellent performance in methylene blue (MB) removal, achieving 98.41% removal, with 97.87% removal although the catalyst is used in the third cycle. The adsorption of methylene blue (MB) onto MIL-Mw-U achieved a maximum capacity of 295.26 mgg⁻¹ at pH 3 and decreased to 258.68 mgg⁻¹ at pH 11 due to OH⁻ competition. The Langmuir isotherm (R² = 0.9381) and pseudo-second-order kinetics (R² = 0.999) confirmed monolayer chemisorption as the dominant mechanism. This innovative approach supports circular economy principles by converting can and plastic bottle waste into functional material for dye removal, offering sustainable solutions for environmental challenges. © 2025 The Authors

关键词： Adsorption Dye removal Green chemistry Metal organic frameworks Photocatalytic SDGs 13 Climate Change

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Advanced Blb Disease Assessment in Paddy Fields Using Multispectral Uav Data and Patch Fragmentation Metrics

SSRN

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SSRN 2024年

作者： Wijayanto, Arif Kurnia Prasetyo, Lilik Budi Hudjimartsu, Sahid Agustian Sigit, Gunardi Hongo, Chiharu Department of Forest Resource Conservation and Ecotourism Faculty of Forestry and Environment IPB University Bogor16680 Indonesia Ronpaku Fellow Tokyo102-0083 Japan Environmental Research Center IPB University Bogor16680 Indonesia Study Program of Information Technology Faculty of Science and Engineering Ibn Khaldun University Bogor16129 Indonesia Department Agriculture Forestry and Bioresources Seoul National University Seoul08826 Korea Republic of Regional Office of Food Crops Service West Java Province Cianjur43283 Indonesia Chiba University Chiba263-8522 Japan

This study presents a new method for assessing bacterial leaf blight (BLB) in paddy fields using multispectral UAV (Unmanned Aerial Vehicle) data through patch fragmentation analysis. Unlike traditional pixel-based methods, which often fail to capture the spatial context, our approach treats pixels as objects and analyzes their spatial relationships to evaluate BLB severity. We used six patch fragmentation metrics derived from binarized vegetation indices to classify BLB damage scores using a random forest algorithm. This method achieves high accuracy (AUC of 0.938) with a 0.5-meter sampling window, offering a more detailed assessment than conventional pixel-based analysis. This study highlights the benefits of incorporating the spatial context and improving BLB monitoring and management. This innovative approach allows agricultural stakeholders to gain valuable insights into the extent and severity of BLB disease infestation, enabling targeted intervention strategies for disease management and mitigation. © 2024, The Authors. All rights reserved.

关键词： Pixels

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Optimization of mechanical properties of bioplastics with the addition of ZnO and glycerol plasticizer

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IOP Conference Series: Earth and Environmental Science 2021年第1期712卷

作者： I A Widhiantari A F Hidayat D A Setiawati Study Program of Agricultural Engineering Faculty of Food and Agroindustrial Technology University of Mataram Indonesia

Bioplastics are an alternative to conventional plastics that have been used in society. The advantage of bioplastics is that they are easily degraded in nature because they come from easily renewable materials such as starch which comes from plants. However, biodegradable plastics have shortcomings in terms of tensile strength so that additional supporting materials are needed in their manufacture. Optimization using the Response Surface Methodology (RSM) central composite design (CCD) in this study aims to obtain optimal mechanical properties (tensile strength). The independent variables used in this study include ZnO concentrations (3%, 6%, and 9%) and glycerol concentrations (2 ml, 5 ml, and 8 ml) as well as mechanical properties such as tensile strength and elongation in response. The optimum conditions were obtained at a concentration of ZnO 6.99% and glycerol 5.32 ml with a tensile strength value of 1.58456 MPa and 9.082201% elongation.

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Enrichment of β-carotene in palm oil through deacidification using supercritical carbon dioxide

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Case Studies in Chemical and Environmental engineering 2025年 11卷

作者： Machmudah, Siti Wahyudiono Gautama, Pramudya Riandana Bhayu Annisa, Devi Nur Rafsanjani, Rais Rahmat Watanabe, Masaru Adschiri, Tadafumi Goto, Motonobu Food Engineering Study Program Department of Chemical Engineering Institut Teknologi Sepuluh Nopember Kampus ITS Sukolilo Surabaya 60111 Indonesia Department of Chemical Engineering Institut Teknologi Sepuluh Nopember Kampus ITS Sukolilo Surabaya 60111 Indonesia of Engineering Tohoku University 6-6-10 Aoba Aramaki Aoba-ku Sendai 980-8579 Japan New Industry Creation Hatchery Center Tohoku University 6-6-10 Aoba Aramaki Aoba-ku Sendai 980-8579 Japan WPI – Advanced Institute for Materials Research Tohoku University 6-6-10 Aoba Aramaki Aoba-ku Sendai 980-8579 Japan Department of Materials Process Engineering Nagoya University Furo-cho Chikusa-ku Nagoya 464-8063 Japan Super Critical Technology Centre Co. Ltd. Mie Kuwana 511-0838 Japan

Supercritical carbon dioxide (SCCO2) is a suitable medium for separating phytochemical compounds from various materials. Here, it was employed for crude palm oil (CPO) deacidification to concentrate the β-carotene co... 详细信息

Supercritical carbon dioxide (SCCO₂) is a suitable medium for separating phytochemical compounds from various materials. Here, it was employed for crude palm oil (CPO) deacidification to concentrate the β-carotene component. In the semibatch process, SCCO₂ was introduced to CPO feed material at various operating temperatures (40−60 °C) and pressures (15−25 MPa) with a CO₂ flow rate of 3 mL min⁻¹ for 120 min. The results indicate that the extraction yield was significantly affected by varying the operating temperature and/or pressure, and the highest extraction yield was 4.59 % (40 °C, 25 MPa). Under the same operating conditions, the addition of an ethanol entrainer improved the extraction yield to 9.31 %. However, due to the β-carotene enrichment in the raffinate product, the presence of an ethanol solvent in this process introduced challenges. © 2025 The Authors

关键词： Crude palm oil Enrichment Fractionation Supercritical CO2 β-carotene

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Community empowerment through development of biogas installation with fixed dome plant technology in Kenteng Village, Nogosari District, Boyolali Regency

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IOP Conference Series: Earth and Environmental Science 2022年第1期1001卷 012029页

作者： S Emawati W Swastike I N Saputro A I Sari Food Nutrition and Public Health Research and Development Center Sebelas Maret University Indonesia Animal Science Study Program Faculty of Agriculture Sebelas Maret University Indonesia Building Engineering Education Study Program Faculty of Teacher Training and Education Sebelas Maret University Indonesia

Kenteng Village has the potential for beef development due to its high cattle population. However, cow dung waste produced by farmers has not been optimally used, hence its additional benefits have not contributed to the community's economy. This has also led to environmental pollution due to improper waste management. Therefore, empowerment efforts are needed to improve farmers' knowledge and skills in managing livestock manure to increase their income and create environmentally friendly conditions through training activities on the manufacture of organic bio-slurry fertilizer as well as maintenance and construction of biogas installations using fixed dome plant technology. Furthermore, the training was held from August 15-September 26, 2021, in Kenteng Village, Nogosari District, Boyolali Regency. The empowerment program is implemented through Focus Group Discussion (FGD), extension, training, demonstration plots on the production technology of organic fertilizer and biogas for fuel production. Materials used in producing the fertilizer include slurry obtained from biogas waste and agricultural lime/dolomite. The dome plant constructed contains a digester with 6 main parts, namely inlet, reactor, gas reservoir, outlet, gas transport system and compost pits for degassed animal manure/bio-slurry. The training result shows an increase in farmers' knowledge and skills on the application of bio-slurry organic fertilizer production technology and the construction of biogas installations as a fuel producer. There was also an increase in their income, which improved their standard of living. Conclusively, the community in Kenteng Village was more empowered by the existence of a biogas installation development program.

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Effects of slurry concentration and rotational speeds of drum drier to the characteristics of pregelatinized breadfruit (Artocarpus altilis) flours 1

Effects of slurry concentration and rotational speeds of dru...

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1st International Conference on Mechanical Electronic and Biosystem engineering, MEBSE 2018

作者： Sunarti, T.C. Sinaga, W.S.L. Pandji, C. Department of Agroindustrial Technology Faculty of Agricultural Engineering and Technology Bogor Agricultural University Indonesia Program Study of Food Science Faculty of Science and Technology University of Pelita Harapan Tangerang Indonesia

Breadfruit is one alternative carbohydrate source in Indonesia. However, breadfruit is seasonal and climacteric crops;it should be processed immediately to produce flour. Native breadfruit flour has many limitations since it is difficult to be solubilized and swollen in cold water. The flour is modified physically by pregelatinization to improve its properties. Pragelatinized breadfruit flour can be used as instant food, porridge, and baby food. This research is aimed to investigate the effect of slurry concentration (20 and 30%) of native breadfruit flour and rotational speeds (4, 6 and 8 rpm) of double drum drier to the chemical composition and physico-chemical properties of the pregelatinized flours. The results showed that pregelatinization did not influence to the chemical composition. Pregelatinization of the flour improved the water solubility and swelling power on room (30°C) and hot (70°C) solutions, reduced the freeze-thaw stability, caused partial gelatinization which is monitored by losing the birefringence of starch granule, and darkened the flour. The pregelatinization also reduced the gelatinization temperature and had low final viscosity. Low concentration of slurry and low rotation speed of drum increased the gelatinized part of the flour, which is influenced to the cold and hot water solubility. © Published under licence by IOP Publishing Ltd.

关键词： Solubility

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