+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Steam pretreatment of lignocellulosic material for enhanced enzymatic hydrolysis

Steam pretreatment of lignocellulosic material for enhanced enzymatic hydrolysis

Biotechnology and Bioengineering 29(2): 228-235

Pretreatment methods were compared with steam explosion, and differing views on the relative importance of mechanical and chemical effects were outlined. Hydrolysis was desirable; pyrolysis was undesirable. The effects of initial moisture content on steam consumption, mechanism and rate of heat transfer, pentosan solubilization, and subsequent glucose yield were summarized. The insignificant effect, after treatment at 240 degrees C, of 90% pressure bleed-down before explosion on subsequent simultaneous saccharification and fermentation (SSF) yields was described. Treatment at 190 degrees C with complete bleed-down (no explosion), when compared with that at 240 degrees C with explosion from full pressure, showed at least as good solubilizatoin of pentosan, enzymatic hydrolysis, and SSF but showed greater pentosan destruction for the same degree of pentosan removal. Water washing of unexploded steamed aspenwood chips was at least as efficient as that of similarly treated but exploded chips. Scanning electron micrographs of unexploded chips showed extensive rupturing of vessel pit membranes and other morphological features associated with steam-exploded wood. Neither the explosion nor the high temperatures (above 190 degrees C) are necessary.

Please choose payment method:

(PDF emailed within 0-6 h: $19.90)

Accession: 029209688

Download citation: RISBibTeXText

PMID: 18576380

DOI: 10.1002/bit.260290213

Related references

On the use of an adsorption model to represent the effect of steam explosion pretreatment on enzymatic hydrolysis of lignocellulosic substrates. Abstracts of Papers American Chemical Society 192, 1986

On the use of an adsorption model to represent the effect of steam explosion pretreatment on the enzymatic hydrolysis of lignocellulosic substances. Enzyme & Microbial Technology 9(2): 79-82, 1987

Enhanced enzymatic hydrolysis of lignocellulosic biomass pretreated by low pressure steam autohydrolysis. Biotechnology Letters 7(7): 531-536, 1985

Steam pretreatment of aspenwood for enhanced enzymatic hydrolysis. Biotechnology and renewable energy edited by Murrary Moo Young Sadiq Hasnain and Jonathan Lamptey: 5, 1986

Enhanced steam pretreatment of wheat straw for enzymatic hydrolysis by hcl and so2 addition. Acta Biotechnologica 11(2): 173-175, 1991

Enhanced the enzymatic hydrolysis efficiency of wheat straw after combined steam explosion and laccase pretreatment. Bioresource Technology 118: 8-12, 2012

Pretreatment of wheat straw using steam, steam/acetic acid and steam/ethanol and its enzymatic hydrolysis for sugar production. Biosystems Engineering 105(3): 288-297, 2010

Organosolv pretreatment of lignocellulosic biomass for enzymatic hydrolysis. Applied Microbiology and Biotechnology 82(5): 815-827, 2009

Steam pretreatment and enzymatic hydrolysis of aspenwood factors restricting the complete hydrolysis of the substrate. Abstracts of Papers American Chemical Society 192, 1986

The role of pretreatment in improving the enzymatic hydrolysis of lignocellulosic materials. Bioresource Technology 199: 49-58, 2016

Improved enzymatic hydrolysis of lignocellulosic biomass through pretreatment with plasma electrolysis. Bioresource Technology 171: 469-471, 2015

Large-scale enzymatic hydrolysis of agricultural lignocellulosic biomass. 1. Pretreatment procedures. Bioresource technology2(3): 197-204, 1992

Enhancement of enzymatic hydrolysis of lignocellulosic wastes by microwave pretreatment under atmospheric pressure. Journal of wood chemistry and technology 23(2): 217-225, 2003

Quartz crystal microbalance with dissipation monitoring of the enzymatic hydrolysis of steam-treated lignocellulosic nanofibrils. Cellulose 21(4): 2433-2444, 2014

Enzymatic hydrolysis of steam-pretreated lignocellulosic materials with Trichoderma atroviride enzymes produced in-house. Biotechnology for Biofuels 2: 14, 2009