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Reaktor
Published by Universitas Diponegoro
ISSN : 08520798     EISSN : 24075973     DOI : https://doi.org/10.14710/reaktor.xx.x.xx-xx
Core Subject : Science, Engineering,
Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Energy Materials Science & Nanotechnology
Reaktor invites contributions of original and novel fundamental research. Reaktor publishes scientific study/ research papers, industrial problem solving related to Chemical Engineering field as well as review papers. The journal presents paper dealing with the topic related to Chemical Engineering including: Transport Phenomena and Chemical Engineering Operating Unit Chemical Reaction Technique, Chemical Kinetics, and Catalysis Designing, Modeling, and Process Optimization Energy and Conversion Technology Thermodynamics Process System Engineering and products Particulate and emulsion technologies Membrane Technology Material Development Food Technology and Bioprocess Waste Treatment Technology
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 2 Documents
 1 
Search results for , issue "Volume 25 No.3 December 2025" : 2 Documents clear
A Brief Overview of Corrosion Prevention and Inhibition: Past, Current and Future Technologies Fauzan, Ahmad -; Kumoro, Andri Cahyo; Purbasari, Aprilina; Abidin, Kharis Yohan
Reaktor Volume 25 No.3 December 2025
Publisher : Department of Chemical Engineering, Faculty of Engineering, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/reaktor.25.3.%p

Abstract

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 paper presents a concise overview of corrosion prevention and inhibition methods, focusing on key strategies, such as material selection and the use of protective coatings, cathodic protection, and corrosion inhibitors. Furthermore, nano coatings, eco-friendly inhibitors, smart materials, corrosion modelling, and self-healing materials are also discussed as part of current advancements. In-depth understanding and appropriate implementation of these suggested methods are essential for extending material lifespan and improving operational efficiency of the overall industrial systems.            
Utilization of Various Substrates by Bacillus megaterium for Polyhydroxybutyrate (PHB) Synthesis: A Review Lumbantoruan, Chintya Sinar
Reaktor Volume 25 No.3 December 2025
Publisher : Department of Chemical Engineering, Faculty of Engineering, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/reaktor.25.3.%p

Abstract

The use of non-degradable plastics as packaging has led to significant environmental issues. Waste generated from non-degradable plastics is resistant to degradation and contributes to environmental pollution. The application of biodegradable plastics offers a potential solution to this problem. Polyhydroxybutyrate (PHB) is an environmentally friendly bioplastic that exhibits advantageous properties compared to conventional plastics. PHB is a thermoplastic polyester polymer that can be degraded by microorganisms. The synthesis of PHB can be achieved through three main routes: synthetic polymerization, genetic engineering, and microbial fermentation. This study aimed to determine the yield of PHB synthesized via batch microbial fermentation. The microorganism employed in this study was Bacillus megaterium, which utilized substrates such as cheese whey, sugarcane molasses, glucose, and glycerol as nutrient sources for PHB biosynthesis. The highest PHB yield, 8.29 g/L, was obtained when cheese whey was used as the substrate. These results indicate that cheese whey provides an excellent nutrient source for PHB production.

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