Extractive-free pine wood was processed into vanillin (up to 18 wt.% of the initial lignin) andcellulose (typically 84–93% of the initial amount in the wood) by one-step catalytic oxidationfollowed by enzymatic hydrolysis of the resulting cellulose into glucose (reducing sugaryield up to 70% based on the post-oxidation cellulose). Correlation between the celluloseconversion in hydrolysis and the lignin content in the post-oxidation lignocellulosic materialwas established, which follows the general trend for the products of various delignificationmethods. The obtained results demonstrate the practical possibility of efficient two-step processingof wood into vanillin and glucose.
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