PMID- 32991892
OWN - NLM
STAT- MEDLINE
DCOM- 20210409
LR  - 20210409
IS  - 1879-0003 (Electronic)
IS  - 0141-8130 (Linking)
VI  - 165
IP  - Pt A
DP  - 2020 Dec 15
TI  - Effect of hydrogen bond donor on the choline chloride-based deep eutectic 
      solvent-mediated extraction of lignin from pine wood.
PG  - 187-197
LID - S0141-8130(20)34505-0 [pii]
LID - 10.1016/j.ijbiomac.2020.09.145 [doi]
AB  - In this work, twenty-five kinds of choline chloride (ChCl)-based deep eutectic 
      solvents (DESs) containing acid, hydroxyl, amide, and binary hydrogen bond donors 
      (HBDs) were prepared and successfully used to pretreat pine wood powder. As a 
      result of the pretreatment, the glucan content in the pretreated biomass was 
      increased, whereas the contents of hemicellulose and lignin were significantly 
      decreased. The biomass pretreatment efficiency of the DESs had improved with 
      increasing the polarity and hydrogen bond acidity (alpha) of the DESs. Among the 
      studied DESs, ChCl:lactic acid:formic acid (1:1:1) with the highest alpha value was 
      the most efficient DES in extracting lignin from biomass. The pretreated biomass 
      also showed an enhanced enzymatic saccharification yield owing to the decreased 
      particle size of the biomass and reduced content of hemicellulose and lignin. 
      During the pretreatment process of biomass using DESs, the extracted lignin could 
      be recovered successfully, with a yield of up to 60% and purity of over 90%. The 
      molecular weight of the extracted lignin was much lower than that of the native 
      cellulolytic enzyme lignin. The DES used for pretreatment process could be also 
      successfully reused with high recovery yield of DES and high retention of 
      delignification capacity.
CI  - Copyright (c) 2020 Elsevier B.V. All rights reserved.
FAU - Oh, Yujin
AU  - Oh Y
AD  - Department of Biological Engineering, Konkuk University, Seoul 05029, South 
      Korea.
FAU - Park, Saerom
AU  - Park S
AD  - Department of Biological Engineering, Konkuk University, Seoul 05029, South 
      Korea.
FAU - Jung, Dahun
AU  - Jung D
AD  - Department of Biological Engineering, Konkuk University, Seoul 05029, South 
      Korea.
FAU - Oh, Kyeong Keun
AU  - Oh KK
AD  - Department of Chemical Engineering, Dankook University, Yongin 16890, Gyeonggi, 
      South Korea.
FAU - Lee, Sang Hyun
AU  - Lee SH
AD  - Department of Biological Engineering, Konkuk University, Seoul 05029, South 
      Korea. Electronic address: sanghlee@konkuk.ac.kr.
LA  - eng
PT  - Journal Article
DEP - 20200928
PL  - Netherlands
TA  - Int J Biol Macromol
JT  - International journal of biological macromolecules
JID - 7909578
RN  - 0 (Polysaccharides)
RN  - 0 (Solvents)
RN  - 8024-50-8 (hemicellulose)
RN  - 9004-34-6 (Cellulose)
RN  - 9005-53-2 (Lignin)
RN  - N91BDP6H0X (Choline)
SB  - IM
MH  - Biomass
MH  - Cellulose/chemistry
MH  - Choline/*chemistry
MH  - Hydrogen Bonding
MH  - Hydrolysis
MH  - Lignin/chemistry/*isolation & purification
MH  - Pinus/*chemistry
MH  - Polysaccharides/chemistry
MH  - Solvents/chemistry
MH  - Wood/*chemistry
OTO - NOTNLM
OT  - Deep eutectic solvents
OT  - Lignocellulose
OT  - Solvatochromic parameters
EDAT- 2020/09/30 06:00
MHDA- 2021/04/10 06:00
CRDT- 2020/09/29 20:08
PHST- 2020/07/21 00:00 [received]
PHST- 2020/09/16 00:00 [revised]
PHST- 2020/09/19 00:00 [accepted]
PHST- 2020/09/30 06:00 [pubmed]
PHST- 2021/04/10 06:00 [medline]
PHST- 2020/09/29 20:08 [entrez]
AID - S0141-8130(20)34505-0 [pii]
AID - 10.1016/j.ijbiomac.2020.09.145 [doi]
PST - ppublish
SO  - Int J Biol Macromol. 2020 Dec 15;165(Pt A):187-197. doi: 
      10.1016/j.ijbiomac.2020.09.145. Epub 2020 Sep 28.