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Lignin loss (% w/w) expressed as percentage of lignin removal in comparison with lignin content before sample pretreatments. NT: not treated; ECA: Hypochlorous acid; ECA+AA: Hypochlorous acid + Acid-organosolv; SH: Sodium Hypochlorite ECA + ET: Hypochlorous acid + Alcohol-organosolv; AA: Acid-organosolv; ET: Alcohol-organosolv; HPA: Hydrogen Peroxide Alkaline; HP: Hydrogen Peroxide.
