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[Growth characteristics of haploid and diploid Hansenula polymorpha yeasts on methanol in continuous culture].

Authors
  • Parshina, S N
  • Bliznik, K M
  • Kapul'tsevich, Iu G
  • Sterkin, V E
Type
Published Article
Journal
Mikrobiologiia
Publication Date
Jan 01, 1983
Volume
52
Issue
5
Pages
812–815
Identifiers
PMID: 6664315
Source
Medline
License
Unknown

Abstract

The rate of growth and the yield of biomass of a Hunsenula polymorpha homozygous diploid strain ML-3 X ML-3 were nearly identical with those of the parent haploid culture ML-3. The two cultures were eliminated from the fermenter at D = 0.20 to 0.21 h-1. In contrast, a heterozygous diploid strain ML-3 X VKM 1397 could grow at D = 0.23 to 0.25 h-1 and its biomass yield reached 38% while the yields of the haploid and homozygous diploid strains were 35 to 36%. The pH of the medium had the same effect on the three cultures: a change in the pH from 4.0 to 3.5 and then to 3.0 did not influence the yield of biomass; a further pH drop to 2.5 made the cells be eliminated from the fermenter.

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