Exploring the Valorization of Buckwheat Waste: A Two-Stage Thermo-Chemical Process for the Production of Saccharides and Biochar

To realize the utilization of valorization buckwheat waste (BW), a two-stage thermal-chemical process was explored and evaluated to produce saccharides biochar. During first stage, BW underwent hydrothermal extraction (HTE) varying severity explore feasibility production; then, sum yields in liquid sample were compared. A higher 4.10% obtained at relatively lower factor (SF) 3.24 with byproducts yield 1.92 %. second contents cellulose, hemicellulose, lignin analyzed residue after HTE. Enzymatic hydrolysis from HTE inhibited. Thus, enzymatic for is not suitable utilizing BW. These residues an SF treated by pyrolysis biochar, providing biochar 34.45 % adsorption ability (based on methyl orange) 31.11 compared raw Meanwhile, surface morphology biomass conversion this study. results demonstrate that efficient treating producing This work lays foundation industrial application BW, improving economic benefits cultivation.