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Tytuł:
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Effect of sulfuric acid on production of xylooligosaccharides and monosaccharides from hydrogen peroxide-acetic acid-pretreated poplar.
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Autorzy:
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Ying W; Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, People's Republic of China.
Xu Y; Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, People's Republic of China; Key Laboratory of Forestry Genetics & Biotechnology (Nanjing Forestry University), Ministry of Education, Nanjing 210037, People's Republic of China.
Zhang J; Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, People's Republic of China; Key Laboratory of Forestry Genetics & Biotechnology (Nanjing Forestry University), Ministry of Education, Nanjing 210037, People's Republic of China; College of Forestry, Nothwest A&F University, Yangling 712100, People's Republic of China. Electronic address: .
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Źródło:
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Bioresource technology [Bioresour Technol] 2021 Feb; Vol. 321, pp. 124472. Date of Electronic Publication: 2020 Dec 02.
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Typ publikacji:
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Journal Article
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Język:
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English
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Imprint Name(s):
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Original Publication: Barking, Essex, England : New York, N.Y. : Elsevier Applied Science ; Elsevier Science Pub. Co., 1991-
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MeSH Terms:
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Cellulase*
Monosaccharides*
Acetic Acid ; Glucuronates ; Hydrogen Peroxide ; Hydrolysis ; Lignin ; Oligosaccharides ; Sulfuric Acids
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Contributed Indexing:
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Keywords: Enzymatic hydrolysis; HPAC pretreatment; Monosaccharides; Poplar; Sulfuric acid; Xylooligosaccharides
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Substance Nomenclature:
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0 (Glucuronates)
0 (Monosaccharides)
0 (Oligosaccharides)
0 (Sulfuric Acids)
0 (xylooligosaccharide)
9005-53-2 (Lignin)
BBX060AN9V (Hydrogen Peroxide)
EC 3.2.1.4 (Cellulase)
O40UQP6WCF (sulfuric acid)
Q40Q9N063P (Acetic Acid)
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Entry Date(s):
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Date Created: 20201211 Date Completed: 20201229 Latest Revision: 20201229
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Update Code:
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20240104
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DOI:
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10.1016/j.biortech.2020.124472
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PMID:
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33307483
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Lignin is one of the main obstacles for enzymatic hydrolysis, which can be selectively removed by hydrogen peroxide-acetic acid pretreatment (HPAC). In this work, the effects of sulfuric acid concentration on chemical composition, structural features, physical properties and enzymatic digestibility of HPAC pretreated poplar were investigated. The increased H 2 SO 4 dosage enhanced the lignin removal of HPAC-pretreated poplar, resulting in the increased accessibility and decreased hydrophobicity. A satisfying glucose yield (91.84%) was obtained from HPAC pretreated poplar (100 mM H 2 SO 4 ) at 5 FPU/g DM of cellulase loading with the addition of xylanase (30 U/g DM) and Tween 80 (3 g/L). The increment of H 2 SO 4 concentration promoted the yield of xylooligosaccharides from 0.69% to 20.45% and monosaccharides from 5.76% to 92.89% respectively by two-step enzymatic hydrolysis. This work demonstrated that HPAC pretreatment played a critical role in efficient utilization of poplar carbohydrates by enzymatic hydrolysis.
(Copyright © 2020 Elsevier Ltd. All rights reserved.)
