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  • Title: Conversion of control and genetically-modified poplar into multi-scale products using integrated pretreatments.
    Author: Xu LH, Ma CY, Wang PF, Xu Y, Shen XJ, Wen JL, Yuan TQ.
    Journal: Bioresour Technol; 2023 Oct; 385():129415. PubMed ID: 37390929.
    Abstract:
    In this work, a green and robust pretreatment which integrated acetic acid-catalyzed hydrothermal and wet mechanical pretreatment, was developed to efficiently produce high yield (up to 40.12%) of xylooligosaccharides and digestible substrates from Caffeoyl Shikimate Esterase down-regulated and control poplar wood. Subsequently, superhigh yield (more than 95%) of glucose and residual lignin were obtained after a moderate enzymatic hydrolysis. The residual lignin fraction exhibited a well-preserved β-O-4 linkages (42.06/100Ar) and high S/G ratio (6.42). Subsequently, lignin-derived porous carbon was successfully synthesized, and it exhibited a high specific capacitance of 273.8 F g-1 at 1.0 A g-1 and long cycling stability (remained 98.5% after 10,000 cycles at 5.0 A g-1) compared to control poplar wood, demonstrating that special advantage of this genetically-modified poplar in this integrated process. This work developed an energy-saving and eco-friendly pretreatment technology as a waste-free route for converting different lignocellulosic biomass to multiple products.
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