TITLE

The impacts of deacetylation prior to dilute acid pretreatment on the bioethanol process

PUB. DATE
January 2012
SOURCE
Biotechnology for Biofuels;2012, Vol. 5 Issue 1, p8
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The article offers information on a research that studies the effect of conduction deacetylation before dilute acid pretreatment for the production of ethanol from lignocellulosic biomass. It is mentioned that dilute acid pretreatment is an effective of producing of ethanol and during the process, xylan undergoes depolymerization forming soluble xylose monomers and oligomers. Also, the formation of xylose monomers depends upon cleavage of the xylosidic bonds, and cleavage of covalently bonded acetyl ester groups. Additionally, it is informed that acetyl groups can cause biomass recalcitrance and hydrolyzate toxicity. It is observed that deactelyation increases glucose and xylose yields during pretreatment and enzymatic hydrolysis.
ACCESSION #
74105211

 

Related Articles

  • Technoeconomic analysis of the dilute sulfuric acid and enzymatic hydrolysis process for the conversion of corn stover to ethanol. Aden, Andy; Foust, Thomas // Cellulose;Aug2009, Vol. 16 Issue 4, p535 

    Technoeconomic analysis has been used to guide the research and development of lignocellulosic biofuels production processes for over two decades. Such analysis has served to identify the key technical barriers for these conversion processes so that research can be targeted most effectively on...

  • Characteristics of Corn Stover Pretreated with Liquid Hot Water and Fed-Batch Semi-Simultaneous Saccharification and Fermentation for Bioethanol Production. Li, Xuezhi; Lu, Jie; Zhao, Jian; Qu, Yinbo // PLoS ONE;Apr2014, Vol. 9 Issue 4, p1 

    Corn stover is a promising feedstock for bioethanol production because of its abundant availability in China. To obtain higher ethanol concentration and higher ethanol yield, liquid hot water (LHW) pretreatment and fed-batch semi-simultaneous saccharification and fermentation (S-SSF) were used...

  • Low Temperature and Long Residence Time AFEX Pretreatment of Corn Stover. Bals, Bryan; Teymouri, Farzaneh; Campbell, Tim; Jin, Mingjie; Dale, Bruce // BioEnergy Research;Jun2012, Vol. 5 Issue 2, p372 

    Low temperature and long residence time pretreatments have been proposed as an alternative to conventional pretreatments within a centralized biorefinery, allowing for a decentralized pretreatment without high energy costs. Ammonia fiber expansion (AFEXâ„¢) pretreatment may be uniquely...

  • Optimizing Ethanol and Methane Production from Steam-pretreated, Phosphoric Acid-impregnated Corn Stover. Bondesson, Pia-Maria; Dupuy, Aurélie; Galbe, Mats; Zacchi, Guido // Applied Biochemistry & Biotechnology;Feb2015, Vol. 175 Issue 3, p1371 

    Pretreatment is of vital importance in the production of ethanol and methane from agricultural residues. In this study, the effects of steam pretreatment with phosphoric acid on enzymatic hydrolysis (EH), simultaneous saccharification and fermentation (SSF), anaerobic digestion (AD) and the...

  • Fungus and ethanol.  // Journal of College Science Teaching;Jul/Aug2008, Vol. 37 Issue 6, p10 

    The article discusses findings of a study conducted by a team of researchers from Iowa State University and the University of Hawaii, which suggested that growing a fungus on leftovers of ethanol production can save energy, recycle more water and improve livestock feed. According to lead...

  • Random UV-C mutagenesis of Scheffersomyces (formerly Pichia) stipitis NRRL Y-7124 to improve anaerobic growth on lignocellulosic sugars. Hughes, Stephen; Gibbons, William; Bang, Sookie; Pinkelman, Rebecca; Bischoff, Kenneth; Slininger, Patricia; Qureshi, Nasib; Kurtzman, Cletus; Liu, Siqing; Saha, Badal; Jackson, John; Cotta, Michael; Rich, Joseph; Javers, Jeremy // Journal of Industrial Microbiology & Biotechnology;Jan2012, Vol. 39 Issue 1, p163 

    Scheffersomyces (formerly Pichia) stipitis NRRL Y-7124 was mutagenized using UV-C irradiation to produce yeast strains for anaerobic conversion of lignocellulosic sugars to ethanol. UV-C irradiation potentially produces large numbers of random mutations broadly and uniformly over the whole...

  • Effects of temperature on mixed-culture fermentative hydrogen production from corn stover hydrolyzate. Kun Zhang; Nanqi Ren // Applied Mechanics & Materials;2014, Issue 667-679, p159 

    Four commonly-used temperatures (37°C, 30°C, 55°C, and 70°C) were examined on mixed-culture H2-producing behavior with corn stover hydrolyzate as the substrate. Experimental results indicated that the optimum biogas (1505.7 mL/L) and H2 (717.2 mL/L) production was achieved at...

  • Ethanol and biogas production after steam pretreatment of corn stover with or without the addition of sulphuric acid. Bondesson, Pia-Maria; Galbe, Mats; Zacchi, Guido // Biotechnology for Biofuels;2013, Vol. 6 Issue 1, p1 

    Background: Lignocellulosic biomass, such as corn stover, is a potential raw material for ethanol production. One step in the process of producing ethanol from lignocellulose is enzymatic hydrolysis, which produces fermentable sugars from carbohydrates present in the corn stover in the form of...

  • We should have left our scientists alone. Martin, John // Fleet Equipment;Jun2008, Vol. 34 Issue 6, p8 

    The author reflects on the insignificant impact brought about by the development of corn-based ethanol. The author expresses his disinterest in corn-based ethanol by stating that it degraded fuel economy in a time when consumers need to conserve every single drop of fuel possible. He mentions...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics