skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Development of xylose-fermenting yeasts for ethanol production at high acetic acid concentrations

Abstract

Mutants resistant to comparatively high levels of acetic acid were isolated from the xylose-fermenting yeasts Candida shehatae and Pichia Stipitis by adapting these cultures to increasing concentrations of acetic acid grown in shake-flask cultures. These mutants were tested for their ability to ferment xylose in presence of high acetic acid concentrations, in acid hydrolysates of wood, and in hardwood spent sulfite liquor, and compared with their wild-type counterparts and between themselves. The P. stipitis mutant exhibited faster fermentation times, better tolerance to acid hydrolysates, and tolerance to lower pH.

Authors:
; ;  [1]
  1. Vetrogen Corporation, London, Ontario (Canada)
Publication Date:
Research Org.:
Oak Ridge National Lab., TN (United States)
OSTI Identifier:
150418
Report Number(s):
CONF-940526-
TRN: 95:007973-0030
Resource Type:
Conference
Resource Relation:
Conference: 16. symposium on biotechnology for fuels and chemicals, Gatlinburg, TN (United States), 9-13 May 1994; Other Information: PBD: 1995; Related Information: Is Part Of Sixteenth symposium on biotechnology for fuels and chemicals; Davison, B.H. [ed.] [Oak Ridge National Lab., TN (United States)]; Wyman, C.E. [ed.] [National Renewable Energy Lab., Golden, CO (United States)]; PB: 823 p.
Country of Publication:
United States
Language:
English
Subject:
09 BIOMASS FUELS; 55 BIOLOGY AND MEDICINE, BASIC STUDIES; ACETIC ACID; TOLERANCE; XYLOSE; FERMENTATION; YEASTS; MUTANTS; SENSITIVITY ANALYSIS; ETHANOL; BIOMASS; BIOCONVERSION

Citation Formats

Mohandas, D V, Whelan, D R, and Panchal, C J. Development of xylose-fermenting yeasts for ethanol production at high acetic acid concentrations. United States: N. p., 1995. Web.
Mohandas, D V, Whelan, D R, & Panchal, C J. Development of xylose-fermenting yeasts for ethanol production at high acetic acid concentrations. United States.
Mohandas, D V, Whelan, D R, and Panchal, C J. Sun . "Development of xylose-fermenting yeasts for ethanol production at high acetic acid concentrations". United States.
@article{osti_150418,
title = {Development of xylose-fermenting yeasts for ethanol production at high acetic acid concentrations},
author = {Mohandas, D V and Whelan, D R and Panchal, C J},
abstractNote = {Mutants resistant to comparatively high levels of acetic acid were isolated from the xylose-fermenting yeasts Candida shehatae and Pichia Stipitis by adapting these cultures to increasing concentrations of acetic acid grown in shake-flask cultures. These mutants were tested for their ability to ferment xylose in presence of high acetic acid concentrations, in acid hydrolysates of wood, and in hardwood spent sulfite liquor, and compared with their wild-type counterparts and between themselves. The P. stipitis mutant exhibited faster fermentation times, better tolerance to acid hydrolysates, and tolerance to lower pH.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1995},
month = {12}
}

Conference:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

Save / Share: