PMID- 32270381
OWN - NLM
STAT- MEDLINE
DCOM- 20210224
LR  - 20210224
IS  - 1559-0291 (Electronic)
IS  - 0273-2289 (Linking)
VI  - 192
IP  - 1
DP  - 2020 Sep
TI  - Delignification of Pinecone and Extraction of Formic Acid in the Hydrolysate 
      Produced by Alkaline Fractionation.
PG  - 103-119
LID - 10.1007/s12010-020-03311-z [doi]
AB  - The objectives of our research are to investigate the concept of delignification 
      from pinecone through alkaline fractionation and then extraction of formic acid 
      from the hydrolysate through esterification using ethanol. The pinecone is 
      considered a promising material because of its relatively higher lignin content 
      (35.80%) than other lignocellulosic biomass. The recovery yield of acid insoluble 
      lignin (AIL) reached its maximum value of 79.20% at 8% NaOH, and the 
      concentration of formic acid in the hydrolysate had its highest value under the 
      same conditions. Moreover, the glucan content in fractionated solid remained 
      high. The hydrolysate was subjected to esterification with ethanol under various 
      reaction conditions for formic acid extraction, with solvent mixing ratio range: 
      1:1-1:4 v/v, reaction temperature range: 30-45  degrees C, and reaction time range: 
      60-100 min. Subsequently, the ethanol mixture (ethanol and ethyl formate) was 
      recovered through distillation. The formic acid was extracted with more than 85% 
      at mixing ratio of 1:2 and 45  degrees C for all reaction times. Furthermore, salt 
      compounds composed mainly of Na and S were recovered because of its properties 
      not soluble in ethanol solution.
FAU - Cha, Jin Seong
AU  - Cha JS
AD  - Department of Chemical Engineering and Interagency Convergence Energy on New 
      Biomass Industry, Hankyong National University, 327, Jungang-ro, Anseong-si, 
      Gyeonggi-do, 17579, South Korea.
FAU - Um, Byung Hwan
AU  - Um BH
AD  - Department of Chemical Engineering and Interagency Convergence Energy on New 
      Biomass Industry, Hankyong National University, 327, Jungang-ro, Anseong-si, 
      Gyeonggi-do, 17579, South Korea. bhum11@hknu.ac.kr.
LA  - eng
GR  - 20173030091900/Korea Institute of Energy Technology Evaluation and Planning/
PT  - Journal Article
DEP - 20200408
PL  - United States
TA  - Appl Biochem Biotechnol
JT  - Applied biochemistry and biotechnology
JID - 8208561
RN  - 0 (Esters)
RN  - 0 (Formates)
RN  - 0 (Glucans)
RN  - 0 (Solvents)
RN  - 0YIW783RG1 (formic acid)
RN  - 11132-73-3 (lignocellulose)
RN  - 3K9958V90M (Ethanol)
RN  - 9005-53-2 (Lignin)
SB  - IM
MH  - *Biomass
MH  - Biotechnology
MH  - Chemical Fractionation
MH  - Esters/chemistry
MH  - Ethanol/chemistry
MH  - Fermentation
MH  - Formates/*chemistry
MH  - Glucans/chemistry
MH  - Hydrolysis
MH  - Lignin/*chemistry
MH  - *Pinus
MH  - Solvents
MH  - Temperature
OTO - NOTNLM
OT  - Ethanol
OT  - Formic acid
OT  - Lignin
OT  - Pinecone
OT  - Salt compounds
EDAT- 2020/04/10 06:00
MHDA- 2021/02/25 06:00
CRDT- 2020/04/10 06:00
PHST- 2019/11/05 00:00 [received]
PHST- 2020/03/12 00:00 [accepted]
PHST- 2020/04/10 06:00 [pubmed]
PHST- 2021/02/25 06:00 [medline]
PHST- 2020/04/10 06:00 [entrez]
AID - 10.1007/s12010-020-03311-z [pii]
AID - 10.1007/s12010-020-03311-z [doi]
PST - ppublish
SO  - Appl Biochem Biotechnol. 2020 Sep;192(1):103-119. doi: 
      10.1007/s12010-020-03311-z. Epub 2020 Apr 8.