Analysis of by-product formation and sugar monomerization in sugarcane bagasse pretreated at pilot plant scale: differences between autohydrolysis, alkaline and acid pretreatment

Autor: Robert R. Bakker, Gerrit Eggink, David Sanchez Garcia, Arjen M. Punt, Albert N. T. van Zeeland, Edwin C. van der Pol
Rok vydání: 2014
Předmět:
Bio Process Engineering
Carboxylic Acids
Pilot Projects
Coumaric acid
Mass Spectrometry
chemistry.chemical_compound
glucose
Waste Management and Disposal
Chromatography
High Pressure Liquid
chemistry.chemical_classification
Food Chemistry
Hydrolysis
General Medicine
wet oxidation
cellulose
Saccharum
Biochemistry
hydrolysis
Metals
saccharomyces-cerevisiae
BBP Biorefinery & Sustainable Value Chains
Biotechnology
Environmental Engineering
Carbohydrates
Bioengineering
Phenols
BU Authenticity & Bioassays
Enzymatic hydrolysis
Levensmiddelenchemie
Sodium Hydroxide
degradation-products
Cellulose
Sugar
Furans
VLAG
Ions
Ethanol
biomass
Renewable Energy
Sustainability and the Environment
Sulfuric Acids
Molecular Weight
BU Authenticiteit & Bioassays
fermentations
chemistry
ethanol
Bagasse
Nuclear chemistry
Organic acid
Zdroj: Bioresource Technology 181 (2015)
Bioresource Technology, 181, 114-123
ISSN: 1873-2976
0960-8524
Popis: Sugarcane bagasse is an interesting feedstock for the biobased economy since a large fraction is polymerized sugars. Autohydrolysis, alkaline and acid pretreatment conditions combined with enzyme hydrolysis were used on lignocellulose rich bagasse to acquire monomeric. By-products found after pretreatment included acetic, glycolic and coumaric acid in concentrations up to 40, 21 and 2.5 g/kg dry weight bagasse respectively. Alkaline pretreated material contained up to 45 g/kg bagasse DW of sodium. Acid and autohydrolysis pretreatment results in a furan formation of 14 g/kg and 25 g/kg DW bagasse respectively. Enzyme monomerization efficiencies of pretreated solid material after 72 h were 81% for acid pretreatment, 77% for autohydrolysis and 57% for alkaline pretreatment. Solid material was washed with superheated water to decrease the amount of by-products. Washing decreased organic acid, phenol and furan concentrations in solid material by at least 60%, without a major sugar loss.
Databáze: OpenAIRE
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