This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Reprints and Permissions Copyright Information Books from ASM Press MicrobeWorld Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Lee, I. H. Articles by Tsuchiya, H. M. Search for Related Content PubMed Articles by Lee, I. H. Articles by Tsuchiya, H. M. Agricola Articles by Lee, I. H. Articles by Tsuchiya, H. M.

 Previous Article  |  Next Article 

Appl Environ Microbiol. 1974 November; 28(5): 831-835
Copyright © 1974 American Society for Microbiology. All Rights Reserved.

Diauxic Growth of Propionibacterium shermanii

Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455

ABSTRACT

Propionibacterium shermanii has been anaerobically propagated in batch and continuous culture with glucose and/or lactate as energy source. Specific growth rate on lactate was observed to be the same as that on glucose. In terms of cell density, the yield on glucose is higher than the yield on lactate. But the molar ratio of yield on glucose to that on lactate, 8.35, is in good agreement with the theoretical value of 8. In a mixture of glucose and lactate, P. shermanii showed diauxic growth. It used lactate before glucose utilization began. Neither temporary growth cessation nor two distinct growth phases were observed. A mathematical model is proposed to describe the diauxic growth.