Sequential multi-stage biorefinery of chilean Winemaking residues: recovery of high-value compounds and environmental impact of anthocyanins on phenolic-modified anaerobic digestion for bioenergy production

Key Points

• The study reveals that anthocyanins enhance anaerobic digestion efficiency for bioenergy.
• A notable improvement of 25% in biogas yield was observed using phenolic-modified methods.
• Assessment involved a sequential biorefinery approach for optimal compound recovery from residues.
• Findings suggest a sustainable way to utilize winery waste, promoting circular economy practices.