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Edible coating from VCO, iota-carrageenan and alginate blends for pindang fish preservation

Green Materials 2023年第1期13卷 3-16页

作者： Iswahyuni, Hana Suyatma, Nugraha Edhi Wulandari, Nur Irianto, Hari Eko Dewi, Fera Roswita Nurhayati Sinurat, Ellya Nurbayasari, Rodiah Giyatmi Fransiska, Dina Analyst Ministry for Marine Affairs and Fisheries IPB University Bogor Indonesia Master of Food Technology Study Program Graduate School IPB University Bogor Indonesia Department of Food Science and Technology Faculty of Agricultural Engineering and Technology IPB University Bogor Indonesia Research Center for Marine and Land Bioindustry National Research and Innovation Agency of the Republic of Indonesia Lombok Indonesia Food Technology Study Program Faculty of Food Technology and Health Sahid University Jakarta Indonesia Research Center for Applied Microbiology National Research and Innovation Agency of the Republic of Indonesia Cibinong Indonesia

This study aims to develop an edible coating based on virgin coconut oil (VCO) nanoemulsion, iota-carrageenan and alginate to prolong the shelf life of pindang (mildly salted cooked) fish products. The research involved three stages: material preparation, characterization and determination of factors and responses for experimental design;parameter optimization to achieve optimal conditions;and application and analysis of pre- and post-coating characteristics of pindang fish. The parameter ranges were 0.5–1.5% for alginate concentration, 0.5–1.5% for iota-carrageenan concentration and 0.5–1.0% for VCO nanoemulsion concentration. The result of this study was an optimized food coating solution that was clear and bright white in color. Pindang fish coated with this layer showed improved quality in terms of water content (48.46%), weight loss (0.39%), pH (5.84), total volatile base (47.01%), salt content (2.9%), appearance (7), texture (7) and slime (7). At the same time, the total bacterial count remained unchanged (8 log colony-forming units (CFU)/g), the mold count remained unchanged (5 log CFU/g) and the aroma and taste received a score of 6. Thus, this study successfully produced an optimized edible coating that can enhance the quality and extend the shelf life of pindang fish, making it suitable for broader market distribution. © 2023 ICE Publishing. All rights reserved.

关键词： Fish

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Enhanced Dye Adsorption and Bacterial Removal of Magnetic Nanoparticle-Functionalized Bacterial Cellulose Acetate Membranes

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Journal of Renewable Materials 2024年第9期12卷 1605-1624页

作者： Heru Suryanto Daimon Syukri Fredy Kurniawan Uun Yanuhar Joseph Selvi Binoj Sahrul Efendi Fajar Nusantara Jibril Maulana Nico Rahman Caesar Komarudin Komarudin Centre of Advanced Material for Renewable Energy(CAMRY) Universitas Negeri MalangMalang65145Indonesia Department of Mechanical and Industrial Engineering Universitas Negeri MalangMalang65145Indonesia Department of Food and Agricultural Product Technology Faculty of Agricultural TechnologyAndalas UniversityPadang25163Indonesia Department of Chemistry Institut Teknologi Sepuluh NopemberSurabaya60111Indonesia Study Program of Aquatic Resources Management Faculty of Fisheries and Marine ScienceBrawijaya UniversityMalang65145Indonesia Institute of Mechanical Engineering Saveetha School of EngineeringSaveetha Institute of Medical and Technical Sciences(SIMATS)Saveetha UniversityChennai602105India Faculty of Vocational Universitas Negeri MalangMalang65145Indonesia

Utilizing biomass waste as a potential resource for cellulose production holds promise in mitigating environmental *** current study aims to utilize pineapple biowaste extract in producing bacterial cellulose acetate-based membranes with magnetic nanoparticles(Fe_(3)O_(4)nanoparticles)through the fermentation and esterification process and explore its *** bacterial cellulose fibrillation used a high-pressure homogenization procedure,and membranes were developed incorporating 0.25,0.50,0.75,and 1.0 wt.%of Fe3O4 nanoparticles as magnetic nanoparticle for *** membrane characteristics were measured in terms of Scanning Electron Microscope,X-ray diffraction,Fourier Transform Infrared,Vibrating Sample Magnetometer,antibacterial activity,bacterial adhesion and dye adsorption *** results indicated that the surface morphology of membrane changes where the bacterial cellulose acetate surface looks *** crystallinity index of membrane increased from 54.34%to 68.33%,and the functional groups analysis revealed that multiple peak shifts indicated alterations in membrane functional ***,adding Fe_(3)O_(4)-NPs into membrane exhibits paramagnetic behavior,increases tensile strength to 73%,enhances activity against *** and ***,and is successful in removing bacteria from wastewater of the river to 67.4%and increases adsorption for anionic dyes like Congo Red and Acid Orange.

关键词： Bacterial cellulose dye adsorption Fe_(3)O_(4)nanoparticles membrane pineapple waste

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Optimization of Eco-Friendly Extraction and Effect of Ph on Betalain Color Properties from Dragon Fruit (Hylocereus Undatus) Peels

SSRN

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SSRN 2023年

作者： Permana, Lasuardi Sriprom, Pongsert Manamoongmongkol, Kanjana Phumjan, Lamphung Assawasaengrat, Pornsawan School of Food Industry King Mongkut’s Institute of Technology Ladkrabang Bangkok10520 Thailand Program of Food Process Engineering School of Food Industry King Mongkut’s Institute of Technology Ladkrabang Bangkok10520 Thailand Department of Chemical Engineering School of Engineering King Mongkut’s Institute of Technology Ladkrabang Bangkok10520 Thailand Study Program of Food Technology Institut Teknologi Sumatera Lampung35365 Indonesia

In this study, betalain was extracted from dragon fruit peels using a safe and environment-friendly aqueous solvent. This study investigated the effects of different pH levels, temperatures, times, and solid-to-liquid ratios on the extraction of betalain from dragon fruit peels using the Box-Behnken design as a response surface methodology. Additionally, the effect of betalain extract at pH 2.0 – pH 7.0 was examined. The results showed that the solid-to-liquid ratio had the most significant impact on betacyanin extraction as major composition of betalain in dragon fruit peels. The optimal extraction conditions were determined to be a pH of 3.6, temperature of 30°C, extraction time of 10 min, and a solid-to-liquid ratio of 1:15. The expected betacyanin content under these conditions was 72.47 mg/L. A significant change in the CIELAB parameter of the extracted betalain was observed, with marked differences in the L*, a*, and b* values as the pH increased. This color change may be attributed to the degradation of betacyanin to betalamic acid. This study demonstrates the potential of a safe and eco-friendly process for extracting betacyanin from this agricultural waste material. © 2023, The Authors. All rights reserved.

关键词： Extraction

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Integrated microalgae culture with food processing waste for wastewater remediation and enhanced biomass productivity

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Chinese Chemical Letters 2023年第2期34卷 636-643页

作者： Angela Paul Peter Kit Wayne Chew Apurav Krishna Koyande Heli Siti Halimatul Munawaroh Amit Bhatnagar Yang Tao Chihe Sun Fubao Sun Zengling Ma Pau Loke Show Department of Chemical and Environmental Engineering Faculty of Science and EngineeringUniversity of Nottingham MalaysiaJalan Broga43500 SemenyihSelangor Darul EhsanMalaysia Zhejiang Provincial Key Laboratory for Subtropical Water Environment and Marine Biological Resources Protection Wenzhou UniversityWenzhou 325035China Study Program of Chemistry Department of Chemistry EducationFaculty of Mathematics and Science EducationUniversitas Pendidikan IndonesiaBandung 40154Indonesia Department of Separation Science LUT School of Engineering ScienceLUT UniversitySammonkatu 12FI 50130MikkeliFinland College of Food Science and Technology Nanjing Agricultural UniversityNanjing 210095China Key Laboratory of Industrial Biotechnology Ministry of EducationSchool of BiotechnologyJiangnan UniversityWuxi 214122China Department of Sustainable Engineering Saveetha School of EngineeringSIMATSChennai 602105India

Waste generation from food manufacturing facilities poses a serious hazard like environmental degradation, water pollution, and land pollution due to its high nutrient composition. Specifically, solid waste(powder) disposal requires additional energy sources in terms of scientific treatment, structured collection, and disposal packaging according to the safety regulation. Thus, this research discusses the viewpoint of integrating food processing waste as an organic carbon source with BG-11 medium for Chlorella vulgaris(FSP-E) growth. The food processing waste powders investigated in this study were obtained from milk, and biscuit manufacturing facilities. The culture medium was modified by combining both BG-11 and food processing waste powders to identify the optimal algal growth and biochemical *** to the microalgae grown in BG-11 alone(IBG), the combination of biscuit waste and IBG produced higher biomass concentration(44%), with increased lipid(11%), protein(20%), and carbohydrate(57%) contents. Chlorella vulgaris was able to uptake nutrients from the culture medium with combination of food processing waste and IBG thus enhancing its growth. The results obtained also indicate that an integrated culture system using food processing waste and synthetic sources can generate energy out of waste by improving the bio-composition of the microalgae biomass.

关键词： Medium contamination food processing Waste powder Organic medium Waste remediation

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Passive drying of Porang (Amorphophallus oncophylus) slices

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AIP Conference Proceedings 2023年第1期2596卷

作者： Syamsinar Rahmia Junaedi Muhidong Salengke Amran Laga Food Science and Technology Study Program Ichsan Gorontalo University Gorontalo Indonesia Agricultural Engineering Study Program Hasanuddin University Makassar Indonesia Food Science and Technology Study Program Hasanuddin University Makassar Indonesia

Drying is an essential process for food preservation by reducing food losses of agricultural products. Porang tubers are one of the potential food products with a high economic value and various benefits for the food industry. The commercial product of porang tubers is slices dried or chips dried. Passive drying mechanism utilizes sunlight in the drying chamber with a natural airflow mechanism. The tool used is a direct passive solar box dryer. It is a small box made up of plywood, with a transparent cover on it. Direct type passive drying is a drying machine in the drying chamber with an airflow mechanism where direct sunlight enters the drying chamber. The drying process is carried out by placing the sample at the top, middle, and bottom of the drying chamber with the size of 2x2x0.8 cm. The objective of this study was to determine the characteristic of moisture content of porang tubers slices and to fitted of suitable drying model. The method uses the pre-drying treatment that is non-blanching and blanching with a temperature of 60℃. The simplest method for blanching is immersion for a few minutes in boiling/near-boiling water that is used water bath. Passive drying of porang tubers slices is carried out in two stages. Drying data analysis is used to determine the chi-square value (χ2) in the drying model and to validate the prediction accuracy of the obtained model. The models evaluated for compatibility are Newton, Henderson & Pabis, and Page. The results of the analysis showed that the value of moisture content in the dried slices was 6.07% (wet basis) and 4.72% (wet basis) respectively, with a total drying time of 1620 minutes. Page's model with the equation MR=exp (−ktn) is the most suitable model for the blanching temperature method of 60℃. The constant value of Page's equation is obtained as follows: k=0.02624, n=1.101326 and χ2= 0.997551.

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Chemical compounds in essential oil of nutmeg leaves (Myristica fragrans) from Batang Indonesia 10

Chemical compounds in essential oil of nutmeg leaves (Myrist...

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10th International Seminar on New Paradigm and Innovation of Natural Sciences and itsApplication, ISNPINSA 2020

作者： Kusumaningrum, H.P. Zainuri, M. Endrawati, H. Loka, B.D. Widiasa, I.N. Sulistyowati, E. Laboratory of Biotechnology Study Program of Biotechnology Faculty of Science and Mathematics Universitas Diponegoro Semarang Indonesia Laboratory of Oceanography Department of Oceanography Food Technology Department Faculty of Animal and Agricultural Sciences Diponegoro University Indonesia Chemical Engineering Department Faculty of Engineering Universitas Diponegoro Semarang Indonesia Architecture Department Faculty of Engineering Universitas Diponegoro Semarang Indonesia

Nutmeg oil has an important function as natural tropical biomedicine activity which commonly found in Batang region. This essential oil is one of the dominant traditional export product from Batang instead of patchouli oil, Clove oil, and lemongrass oil. The objective of the research was to analyze chemical compound of essential oil of nutmeg leaves from Batang region produced by traditional destillation. Research methods was conducted by GCMS method. The biomedical activity against some tropical diseases was analysed in-silico. The results showed that essential oil from nutmeg leaves showed potential antimicroabial activities in silico againts several tropical diseases in skin. The GCMS result showed 2-.BETA.-PINENE and .gamma.-Terpinene as the major compound with values 34,46% and 30,28%. © Published under licence by IOP Publishing Ltd.

关键词： Essential oils

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Optimization of biomass-fueled vertical corn drying: Efficiency, energy balance, and sustainability

Results in Engineering

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Results in engineering 2025年 26卷

作者： Sukmawaty, Sukmawaty Syahrul, Syahrul Amuddin, Amuddin Rahmi, Sri Helmayana Syahrul, Ahmad Ibrahim Agricultural Engineering Study Program Faculty of Food Technology and Agroindustry University of Mataram Mataram83125 Indonesia Mechanical Engineering Department Engineering Faculty University of Mataram Mataram83125 Indonesia

This study investigates the thermal performance and energy efficiency of a biomass-fueled vertical dryer utilizing candlenut shell biomass for corn drying. The objective is to evaluate drying behavior under continuous and discontinuous operation modes at different temperature settings. A custom-built dryer was developed and tested at 45 °C, 50 °C, and 55 °C, and energy input, drying time, and efficiency were recorded. Statistical analyses, including paired t-tests, were conducted to examine the significance of operational differences. Results show that continuous drying at 50 °C and 55 °C significantly improves drying efficiency, reaching above 66 %, and reduces drying time compared to discontinuous modes. Candlenut shells performed well as a renewable fuel, offering stable combustion and minimal ash production, outperforming traditional fuels such as rice husks and corn cobs in similar drying conditions. Energy analyses indicated balanced energy use, while future work should address post-drying quality characteristics and automation. These findings suggest that candlenut shells are a viable, sustainable alternative for efficient post-harvest thermal processing, particularly in rural agro-industrial settings. © 2025 The Authors

关键词： Energy utilization

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The chemical composition of coconut sap at different tapping condition

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AIP Conference Proceedings 2023年第1期2586卷

作者： Pepita Haryanti Karseno Isti Handayani Susanto B. Sulistyo 1Food Technology Study Program Faculty of Agriculture Jenderal Soedirman University Purwokerto Indonesia 2Agricultural Engineering Study Program Faculty of Agriculture Jenderal Soedirman University Purwokerto Indonesia

Coconut sap is a sweet, transparent, oyster-white liquid derived by tapping coconut inflorescent. This tapping procedure is usually carried out twice a day, at night and during the day, for around 15 and 9 hours, respectively. Coconut sap is especially sensitive to spontaneous fermentation because it contains sugar with a pH close to neutral. Coconut farmers generally use preservatives to keep the sap’s quality throughout the tapping process. In this paper, a proximate analysis of coconut sap obtained during night (CTN) and in the daytime (CTD) were measured. The reducing sugar and amino acid profiles of coconut sap were also measured using High Performance Liquid Chromatography. This research aimed to determine the chemical composition of coconut sap at different tapping condition and variations of mangosteen peel powder concentration. The best preservative concentration of mangosteen peel powder was 0.84 g/L of coconut sap tapped during the daytime, according to the findings. This treatment yielded sap with chemical characteristic i.e. water content of 84.21%; ash content of 3.51% (db); protein content of 2.69% (db); total lipid of 0.10% (db) and total carbohydrate content of 94,62% (db). The CTN contained glucose and fructose of 0.85 and 1.04 g/100 g, respectively, higher than the CTD were 0.52 and 0.58 g/100 g. The CTN contained 13 amino acids which was lower than CTD.

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Textural Features for Blb Disease Damage Assessment in Paddy Fields Using Drone Data and Machine Learning: Enhancing Disease Detection Accuracy

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 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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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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