Optimization and characterization of cellulose extraction from olive pomace

Olive pomace (OP) was used as raw material to extract cellulose by multi-step chemical method, and the extracted characterized. The two steps of alkali treatment (alkali concentration, reaction time temperature) bleaching (H2O2 NaOH were optimized. results showed that optimum conditions for follows: concentration 6%, 2 h, temperature 95 °C; optimal 7.5% H2O2 solution, 5% NaOH, 75 °C. After treatment, content final OP (86.41 ± 0.27) %, lignin (6.77 0.55) extraction process yield 20.36%. By scanning electron microscopy, surface changes from dense smooth structure rough irregular with different degrees. Fourier transform infrared spectroscopy (FTIR) proved removal hemicellulose in fibers after treatment. crystallinity fiber increased 34.80 68.69% Thermogravimetric analysis (TGA) had high thermal stability. study provides a new idea conversion industrial processing by-products into high-quality cellulose, proves it is feasible olive pomace.