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Effects of γ-Valerolactone/H 2 O Solvent on the Degradation of pubescens for Its Fullest Utilization.

  • Academic Journal
  • Luo Y; Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry , Sichuan University , Chengdu , Sichuan 610064 , P. R. China.; Chengdu Institute of Biology , Chinese Academy of Sciences , Chengdu , Sichuan 610041 , P. R. China.
    Li Z; Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry , Sichuan University , Chengdu , Sichuan 610064 , P. R. China.
    Zuo Y; Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry , Sichuan University , Chengdu , Sichuan 610064 , P. R. China.
    Su Z; Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry , Sichuan University , Chengdu , Sichuan 610064 , P. R. China.
    Hu C; Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry , Sichuan University , Chengdu , Sichuan 610064 , P. R. China.
  • Journal of agricultural and food chemistry [J Agric Food Chem] 2018 Jun 20; Vol. 66 (24), pp. 6094-6103. Date of Electronic Publication: 2018 Jun 06.
  • English
  • Solvent-thermal conversion of biomass was promising for obtaining value-added chemicals. However, little was known about the interactions between solvents and biomass in the process, which hindered the effective utilization of biomass. The effects of γ-valerolactone (GVL) and H 2 O on enhancing pubescens degradation via the cleavage of inter- and intramolecular linkages were studied. At 160 °C, H 2 O selectively promoted the cleavage of the intermolecular linkages by forming hydrogen bonds, making mainly contributions to hemicellulose dissolution, while GVL and H 2 O promoted lignin dissolution by forming hydrogen bonds with -OCH 3 group of lignin. H 2 O promoted the cleavage of β-(1,4)-glycosidic bonds in hemicellulose derived oligomers to xylose, while the oxygen in the ring of GVL might interact with hydroxyl groups of xylose unit to enhance the dehydration of xylose to furfural, whereas GVL with H 2 O promoted the depolymerization of lignin to oligomers mainly including β-O-4' and β-β' linkages connecting to G and S units.
Additional Information
Publisher: American Chemical Society Country of Publication: United States NLM ID: 0374755 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1520-5118 (Electronic) Linking ISSN: 00218561 NLM ISO Abbreviation: J Agric Food Chem Subsets: MEDLINE
Original Publication: Washington, American Chemical Society.
Keywords: H2O; inter- and intramolecular bonds; lignocellulosic biomass; solvent effects; γ-valerolactone
0 (Lactones)
0 (Plant Extracts)
0 (Solvents)
059QF0KO0R (Water)
9004-34-6 (Cellulose)
9005-53-2 (Lignin)
O7056XK37X (gamma-valerolactone)
Date Created: 20180526 Date Completed: 20180717 Latest Revision: 20180717
20211214
10.1021/acs.jafc.8b01563
29799753
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