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ISSN 0852-0798 · Diponegoro University · 492 artikel di indeks
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Artikel Jurnal
Production of Food – Grade Liquid Smoke from Candlenut Shell through a Consecutive Pyrolysis – Distillation Process
Concerning the increasing demand for food-grade liquid smoke, this research focuses on liquid smoke purification through distillation to improve quality, in terms of color, odor, and chemical composition, while eliminating carcinogenic compounds such as tar residues. For that reason, this study…
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Artikel Jurnal
A Comparative Review on Polyhydroxybutyrate (PHB) Production by Bacillus megaterium Using Different Substrates under Batch Fermentation
The use of non-degradable plastics as packaging has led to significant environmental issues because they are resistant to degradation and contributes to environmental pollution. The application of biodegradable plastics offers a potential solution to this problem. Polyhydroxybutyrate (PHB) is an…
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Artikel Jurnal
Modification of Cuttlefish Bone-Derived CaO Catalyst via SrO Impregnation for Optimizing the Conversion of Waste Cooking Oil into Biodiesel
This study investigates the utilization of waste cooking oil (WCO) as a biodiesel feedstock using a heterogeneous catalyst derived from cuttlefish bone. The catalyst was modified via Sr(NO₃)₂ impregnation at different composition ratios (98:2, 95:5, and 90:10 % w/v) to produce CaO–SrO catalysts…
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Artikel Jurnal
A Brief Overview of Corrosion Prevention and Inhibition: Past, Current and Future Technologies
Corrosion is a process that degrades metal-based materials as a result of chemical reactions with their surrounding environment. For that reason, it causes serious problems across various industries, namely reduced material quality, increased maintenance costs, and extensive safety concerns. This…
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Artikel Jurnal
Effect of Ni-Co Ratio on ZSM-5 Catalyst Performance in Palm Oil Hydrocracking for Biofuel Production
Biofuel derived from vegetable oil can be utilized as a vehicle fuel with various advantages, such as renewability, environmental friendliness, and sustainable availability. One of the methods for converting vegetable oil into biofuel is hydrocracking. This study investigates Ni-Co/ZSM-5 catalyst…
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Artikel Jurnal
Synthesis of Poly(NIPAM) for Efficient Trypsin Purification Using Affinity Precipitation Technique
The method of bio specific affinity for separation has gained attention and continues to be developed today. The affinity precipitation technique is continuously being refined because it is simpler, less complex, and highly economical without reducing product purity. Moreover, the obtained polymers…
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Artikel Jurnal
Effect of Freeze-Drying Pre-treatment on the Properties of Activated Carbon Derived from Arabica Coffee Pulp
Activated carbon is a product that has many benefits since it has a high surface area and high fixed carbon content. Currently, there is still limited research that focuses on the use of coffee pulp biomass as raw material for activated carbon due to its natural properties which poses challanges…
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Artikel Jurnal
Characterization of Cellulose Extracted from Garlic Waste via Alkaline Treatment and Its Effect on Yield
Garlic waste—including straws, bulbs, and skins—is an agricultural residue contributing to household waste. Rich in cellulose, garlic waste can be converted into various value-added products through proper processing. In this study, cellulose was extracted from garlic waste using alkaline treatment…
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Artikel Jurnal
Extraction of Scandium and Removal of Iron from Bauxite Residue using Hydrochloric Acid Solution with/without Addition of EDTA
Scandium (Sc) is a strategic metal for its increasing demand for advanced materials applications. As a by-product of alumina production, bauxite residues possess a potential source of Sc. However, its high iron content hinders the Sc extraction efficiency. This study investigated the feasibility of…
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Artikel Jurnal
Catalytic cracking of pyrolytic oil derived from arabica coffee parchment using Ni-NZ catalysts
The potential of bio-oil derived from biomass has garnered significant attention among researchers due to its prospects as an environmentally friendly fuel alternative. This study utilized bio-oil extracted from Arabica coffee parchment sourced from coffee plantations in Bener Meriah Regency, Aceh…
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Artikel Jurnal
Effect of HPMC Concentration and Liquid Addition Method on granules properties using High-Shear Wet Granulator
Enhancing the physical properties of medicinal powders is largely dependent on the granulation process. This study investigates how the concentration of hydroxypropyl methylcellulose (HPMC) and the liquid addition technique (pouring versus syringe) interact to affect the distribution of granule…
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Artikel Jurnal
Breaking Boundaries in Renewable Energy: Portable Bio-Photovoltaic Systems for the IoT Era
Bio-photovoltaic (BPV) technology represents a promising innovation in renewable energy by harnessing photosynthetic microorganisms, such as microalgae and cyanobacteria, to convert solar energy into electricity. This review examines recent advancements in BPV systems, with a focus on portable…
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Artikel Jurnal
Adsorption Capacity of Magnetic Activated Carbon Derived from Snake Fruit (Salacca zalacca) Seeds to Cd(II): Characteristics and Isotherm Model
Salak seeds are an agricultural waste that has the potential to be converted into magnetic activated carbon (MAC). The resulting MAC can be utilized for wastewater treatment, particularly in the adsorption of heavy metals. This study develops a method for producing MAC by forming activated carbon…
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Artikel Jurnal
Adsorption Photocatalytic Removal of Rhodamine B using Dodecyl Dimethyl Betaine (BS12) Intercalated Silver Tetratungstate-Bentonite composites: Effect of Ag and Surfactant Loading, pH, and its Subsequent Economic Feasibility
The potential of silver tetratungstate-doped bentonite intercalated with zwitterionic surfactant for removing Rhodamine B (RhB) was evaluated by comparing three composites, namely, AB (acid-activated bentonite), AB impregnated with Ag8W4O16 photocatalyst (Ag@AB), and Ag@AB intercalated with dodecyl…
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Artikel Jurnal
Production and Application of Carbon Dots from Sugarcane Bagasse-Derived-Lignin for Pb2+ Ion Detection
This study investigates the formation and application of carbon dots derived from sugarcane bagasse lignin for lead ion detection. Lignin was extracted from bagasse using an alkaline treatment followed by precipitation with sulfuric acid. The isolated lignin was converted into carbon dots through a…
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Artikel Jurnal
Synthesis of Sorghum Starch–PVA/Gelatin Bioplastics Reinforced with Sorghum Stem Cellulose Nanofibers via Blend Ratio Tailoring
This study aims to synthesis of sorghum starch–PVA/gelatin bioplastics reinforced with sorghum stem cellulose nanofibers through blend ratio tailoring in order to obtain bioplastics with properties comparable to LDPE. The mass ratios of sorghum starch to PVA/gelatin are varied at 9:1 and 8:2 (g/g)…
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Artikel Jurnal
Functional Properties of Heat-Moisture-Treated Arrowroot (Maranta arundinacea L.) Flour for Instant Porridge Application
Instant porridge, usually made from high glycemic index rice flour, can be substituted with arrowroot flour, which has a lower glycemic index. Heat moisture treatment (HMT) can enhance the water absorption capacity of arrowroot flour. The research aims to determine the effect of HMT temperature and…
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Artikel Jurnal
Sulfonated Polysulfone/PEG/Halloysite Nanotube Hybrid Tight-Ultrafiltration Membranes for Treatment of Industrially Contaminated Raw Water
The quality of river water in Indonesia predominantly falls below the established standards for clean water, including the Citarum River in West Java. Despite the associated health risks, many residents in the river basin continue to utilize this water for their daily needs. This study aims to…
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Artikel Jurnal
Incorporating silica synthesized from rice husk ash into a calcium oxide catalyst for biodiesel production
Biodiesel represents a promising renewable energy alternative to either substitute or be blended with conventional diesel, offering advantages such as a high cetane number, reduced sulfur (SOx) and CO₂ emissions, and greater environmental sustainability. The application of calcium oxide (CaO) as a…
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Artikel Jurnal
Composite Encapsulating Agent for NaFeEDTA Microencapsulation Using Spray Drying Method
Iron microencapsulation is one of the solutions to protect iron from reacting with other substances that result in quality declines of fortified food products. The coating materials used should be appropriate for the specified encapsulation process. This study combined glucomannan and maltodextrin…