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Author

A. Khalifa

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Review Open access Sep 2026

Turning Waste Cooking Oil into Sustainable Biodiesel: A Review of Waste-Derived Heterogeneous Catalysts, Life-Cycle Performance, and Circular Bioeconomy

Waste cooking oil (WCO) represents both a growing environmental burden and a promising low-cost feedstock for sustainable biodiesel production. This review critically examines recent advances in the conversion of WCO into biodiesel, with particular emphasis on heterogeneous catalysts derived from waste resources and th...

N. Badawi, A. Khalifa · 0 citations
Open access Jul 2026

In Silico Insights into Carbohydrate-Active Enzymes (CAZymes) of Bacillus subtilis T7: Lignin and Polysaccharide Degradation Mechanisms

Overall structural integrity for both proteins was confirmed and dynamic dynamics were more variable—xylotetraose remained bound within the Abhydrolase_1 active site for approximately 75 ns before partial displacement, whereas cellotetraose exhibited dynamic association along the GH9 catalytic channel, consistent with...

T. A. Shah, Abdullah Sheikh, H. I. Ibrahim et al. · 0 citations

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