Valorizing Assorted Logging Residues: Response Surface Methodology in the Extraction Optimization of a Green Norway Spruce Needle-Rich Fraction To Obtain Valuable Bioactive Compounds.

ABSTRACT: During stemwood harvesting, substantial volumes of logging residues are produced as a side stream. Nevertheless, industrially feasible processing methods supporting their use for other than energy generation purposes are scarce. Thus, the present study focuses on biorefinery processing, employing response surface methodology to optimize the pressurized extraction of industrially assorted needle-rich spruce logging residues with four solvents. Eighteen experimental points, including eight center point replicates, were used to optimize the extraction temperature (40-135 °C) and time (10-70 min). The extraction optimization for water, water with Na₂CO₃ + NaHSO₃ addition, and aqueous ethanol was performed using yield, total dissolved solids (TDS), antioxidant a

SUBMITTER: Tienaho J 

PROVIDER: S-EPMC10895920 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature