biostudies-literature00450Muangmeesri SStiftelsen f??r Milj??strategisk ForskningH2020 Environment17207-17213https://www.ebi.ac.uk/biostudies/studies/S-EPMC8715730biostudies-literatureUnknown9(51)Despite the increased use of hemp fiber, negligible attention has been given to upgrade the hemp hurd, which constitutes up to 70 wt % of the hemp stalk and is currently considered a low-value byproduct. In this work, valorization of hemp hurd was performed by reductive catalytic fractionation (RCF) in the presence of a metal catalyst. We found an unexpectedly high yield of monophenolic compounds (38.3 wt %) corresponding to above 95% of the theoretical maximum yield. The high yield is explained by both a thin cell wall and high S-lignin content. In addition, organosolv pulping was performed to generate a pulp that was bleached to produce dissolving-grade pulp suitable for textile fiber production (viscosity, 898 mL/g; ISO-brightness, 90.2%) and nanocellulose. Thus, we have demonstrated a novel value chain from a low-value side stream of hemp fiber manufacture that has the potential to increase textile fiber production with 100% yield and also give bio-oil for green chemicals.ACS sustainable chemistry & engineeringHolistic Valorization of Hemp through Reductive Catalytic Fractionation.PMC87157302018/11744349Muangmeesri SPlacet VSamec JSMOuagne PGeorgouvelas DMathew APLi N45falseHolistic Valorization of Hemp through Reductive Catalytic Fractionation.Despite the increased use of hemp fiber, negligible attention has been given to upgrade the hemp hurd, which constitutes up to 70 wt % of the hemp stalk and is currently considered a low-value byproduct. In this work, valorization of hemp hurd was performed by reductive catalytic fractionation (RCF) in the presence of a metal catalyst. We found an unexpectedly high yield of monophenolic compounds (38.3 wt %) corresponding to above 95% of the theoretical maximum yield. The high yield is explained by both a thin cell wall and high S-lignin content. In addition, organosolv pulping was performed to generate a pulp that was bleached to produce dissolving-grade pulp suitable for textile fiber production (viscosity, 898 mL/g; ISO-brightness, 90.2%) and nanocellulose. Thus, we have demonstrated a novel value chain from a low-value side stream of hemp fiber manufacture that has the potential to increase textile fiber production with 100% yield and also give bio-oil for green chemicals.2021-01-01T00:00:00Z2021 Dec2024-02-15T23:15:21.182Z2022-02-11T14:41:32.613ZS-EPMC87157303497644210.1021/acssuschemeng.1c06607