O. Farobie

content on hydrochar quality from high-ash …

Influence of inorganic content on hydrochar quality from high-ash agar extraction waste via hydrothermal carbonization

Agar solid waste (ASW) has potential as a feedstock for hydrochar production because of its organic content; however, its high inorganic fraction, predominantly silica, limits its application. Furthermore, studies specifically investigating the hydrothermal carbonization (HTC) of ASW remain limited, given its high ash...

Effect of Fermentation Time and Spray Drying Inlet Temperature on the Quality of Egg White Powder

Eggs are an affordable and widely consumed protein source but have a limited shelf life due to their perishable nature. Converting egg white into powder through fermentation and spray drying offers a promising preservation method; however, the combined effects of these processes remain insufficiently studied. This rese...

Biomass gasification in Indonesia: A review of decentralized energy system

Biomass gasification is a promising technology for energy production in remote areas with abundant biomass resources, making it highly relevant for application in Indonesia, where electricity distribution remains unstable, especially in frontier, outermost, and disadvantaged regions. This study presents a systematic li...

Industrial Waste Management for a Circular Economy: Critical Perspectives on Prevention, Recovery, Treatment, and Resource Valorization

Industrial waste management is often framed as technology selection, although sustainability depends on prevention, material quality, residual fate, and the displacement of primary production. This purposive critical integrative review examines industrial wastewater, sludges, and solid production residues using 106 cit...

Data-Driven Optimization of Biodiesel Synthesis from Waste Cooking Oil over Sargassum sp.-Based Catalyst Using ANN and RSM

The continuous decline in fossil fuel reserves, together with growing environmental issues, has increased the urgency to develop sustainable alternative energy sources. Biodiesel produced from waste cooking oil (WCO) offers a promising solution; however, conventional homogeneous catalysts remain limited due to their...

Lipid fluorescence and antioxidant activity in microalgae under polystyrene microplastic stress

It is demonstrated that PS promote oxidative stress and affect lipid metabolism in mangrove microalgae, while also eliciting adaptive antioxidant responses, which point to possible ecological repercussions for trophic interactions and primary productivity in aquatic environments polluted by MPs.