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. 2022 Dec 29;15:149. doi: 10.1186/s13068-022-02247-2

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© The Author(s) 2022, corrected publication 2023

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Fig. 6 — Bleaching of hardwood kraft pulp with alkaliphilic laccase. Evolution of kappa number (a) and pulp brightness (b) in control hardwood kraft pulp (light grey) or after Li10 laccase stage (dark grey) followed by Ep, D0, and Ep stages. Soluble lignin (c) in the effluent generated from hardwood kraft pulp before (white) and after Ep stage (grey). Error bars indicate standard deviation for duplicates