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|dc.identifier.citation||VOL 116, NO 28-13824||-|
|dc.description.abstract||Despite the enormous potential shown by recent biorefineries, the current bioeconomy still encounters multifaceted challenges. To develop a sustainable biorefinery in the future, multidisciplinary research will be essential to tackle technical difficulties. Herein, we leveraged a known plant genetic engineering approach that results in aldehyde-rich lignin via down-regulation of cinnamyl alcohol dehydrogenase (CAD) and disruption of monolignol biosynthesis. We also report on renewable deep eutectic solvents (DESs) synthesized from phenolic aldehydes that can be obtained from CAD mutant biomass. The transgenic Arabidopsis thaliana CAD mutant was pretreated with the DESs and showed a twofold increase in the yield of fermentable sugars compared with wild type (WT) upon enzymatic saccharification. Integrated use of lowrecalcitrance engineered biomass, characterized by its aldehydetype lignin subunits, in combination with a DES-based pretreatment, was found to be an effective approach for producing a high yield of sugars typically used for cellulosic biofuels and biobased chemicals. This study demonstrates that integration of renewable DES with plant genetic engineering is a promising strategy in developing a closed-loop process.||-|
|dc.publisher||Proceedings of the National Academy of Sciences of the United States of America||-|
|dc.subject||deep eutectic solvent||-|
|dc.title||Integration of renewable deep eutectic solvents with engineered biomass to achieve a closed-loop biorefinery||-|
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