Process Optimization for Polyphenol Extraction from Macroalgae Residues and Assessment of Their Compositions, Antioxidant Activities, and Glycosidase Inhibition
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Key Points
Antioxidant activity was significantly higher in free polyphenols than bound polyphenols, indicating a more effective extraction strategy.
The optimal extraction conditions for bound polyphenols were identified as 50 °C with a solid–liquid ratio of 1:50 and 8 mol/L NaOH.
HPLC analysis showed distinct profiles with free polyphenols containing more diverse compounds compared to bound polyphenols.
Results demonstrated that free polyphenols exhibit a much stronger inhibition of glycosidase enzymes compared to their bound counterparts.