Journal of Industrial Microbiology

, Volume 10, Issue 1, pp 45–54 | Cite as

Ethanol tolerance and carbohydrate metabolism in lactobacilli

  • R. Shane Gold
  • M. M. Meagher
  • R. Hutkins
  • T. Conway


This paper describes the ethanol tolerance and metabolism of 31 strains ofLactobacillus on glucose, xylose, lactose, cellobiose and starch. The purpose of this work was to determine the suitability of the 31 strains as potential host for the ethanol producing genes, pyruvate decarboxylase and aldehyde dehydrogenase, fromZymomonas mobilis. The 31 strains were screened for their ability to grow in 0 to 8% v/v ethanol on all five carbohydrates. Those strains that were able to grow to an OD of 1.0 in 8% ethanol were evaluated at ethanol concentrations up to 16%. v/v. The fermentative products from the five carbohydrates were analyzed to determine the ratios of lactic acid, ethanol, and acetic acid.

Key words

Ethanol Tolerance Lactobacillus Carbohydrate Utilization 


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Copyright information

© Society for Industrial Microbiology 1992

Authors and Affiliations

  • R. Shane Gold
    • 1
  • M. M. Meagher
    • 1
    • 2
  • R. Hutkins
    • 1
  • T. Conway
    • 3
  1. 1.Department of Food Science and TechnologyUniversity of Nebraska-LincolnLincolnUSA
  2. 2.Department of Biological Systems EngineeringUniversity of Nebraska-LincolnLincolnUSA
  3. 3.School of Biological SciencesUniversity of Nebraska-LincolnLincolnUSA

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