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Tebelay L. Andualem on Muck Rack

Tebelay L. Andualem

As seen in: Nature
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Articles

Sustainable valorization of animal tallow and Aloe abyssinica gel for bar soap formulation with physicochemical properties and quality assessment

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By Tebelay L. Andualem, Reddy Prasad D.M, Ermias A. Tesema, Meketaye A. Edenshaw, Sahlu M. Gela
| Nature Verified
Abstract This study investigates the sustainable production of bar soap using locally sourced Aloe abyssinica gel and animal tallow as primary ingredients. Animal tallow was rendered from local butcher waste and characterized, showing a saponification value of 181.78 mg/g NaOH, acid value of 17.32 mg/g NaOH, pH of 5.45, and specific gravity of 0.929 all within acceptable ranges for soap manufacturing. Fresh A.
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Sustainable production of cellulose nanocrystals from sugarcane bagasse via statistically optimized acid hydrolysis

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By Kabtamu A. Mamo, Tebelay L. Andualem, Reddy Prasad D.M, Manjula Muthu Narayanan, Natsanet A. Bitew, Ermias A. Debase
| Nature Verified
Abstract Cellulose nanocrystals (CNCs) were successfully produced from sugarcane bagasse (SCB) through acid hydrolysis with statistically optimized parameters using Central Composite Design (CCD). SCB, comprising 30–40 wt% of sugarcane by-products, offers an eco-friendly cellulose source without compromising food supply. The process involved mechanical, alkaline, and bleaching pretreatments to remove lignin and hemicellulose, followed by sulfuric acid hydrolysis.
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