One-pot furfuralcohol (FOL) production via dehydration of corncob-derived xylose followed by bioreduction of furfural has been described.

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Recently, cost-effective production of highly value-added furan chemicals from abundant and renewable bioresources has gained much attentions via chemoenzymatic approach in environmentally-friendly reaction system. In this work, chemoenzymatic cascade reaction...

The upgrading of biomass-derived furfural into high-value bio-based chemicals has attracted interest.

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Furfurylamine (FLA) is known as an important biobased product for the production of food additives, fuel additives, polymers, fibers, perfumes, and pharmaceuticals. In this study, recombinant Escherichia coli CV-PRSFDuet whole cells harboring transaminase were used for converting biomass-derived furfural into furfurylamine at pH 7.5 and 35 °C using l-alanine as the amine donor. Whole-cell-catalyzed conversion of 300 mM furfural gave 84.0% yield of furfurylamine with 100% selectivity. 90.3 mM furfural was obtained from the alkali pretreatment of dewaxed corncob (75 g/L) at 170 °C for 0.5 h with an acidified Sn-ZRD catalyst (3.6 wt %, pH 1.0) in the aqueous media, which could be biconverted into furfurylamine at 76.3% yield (0.267 g furfurylamine/g xylan in corncob) within 8.5 h in the presence of 10 mol l-alanine/mol furfural. Clearly, chemoenzymatic synthesis of furfurylamine from corncob could be conducted in a one-pot manner. Finally, an efficient recycling and reuse of the Sn-ZRD catalyst and immobilized whole cell biocatalyst were developed for the chemoenzymatic synthesis of FLA from corncob in the one-pot reaction system. In summary, an initial approach for high-value utilization of biomass into FLA and its derivatives was successfully provided under relatively mild performance conditions.

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