Fermentation of maltotriose by brewer's and baker's yeasts

John Londesborough

Research output: Contribution to journalArticleScientificpeer-review

13 Citations (Scopus)

Abstract

Two brewer's yeasts and one baker's yeast grew with ≥95% (w/w) pure maltotriose as carbon source in the presence of antimycin A to block respiration. Biomass yields (0.15 and 0.24 g dry yeast g−1 sugar, respectively, with and without antimycin A) were similar for growth on maltose and maltotriose, and yields of ethanol were 80% of stoichiometric. Yeasts harvested during growth on glucose and containing low maltose transport activity did not begin to use maltotriose in the presence of antimycin A until after a long lag phase (up to 50 h), but yeast harvested during growth on maltose, and containing high maltose transport activity, began to use maltotriose after about 25 h. Much shorter lags were observed before growth started in the absence of antimycin A.
Original languageEnglish
Pages (from-to)1995-2000
Number of pages6
JournalBiotechnology Letters
Volume23
Issue number24
DOIs
Publication statusPublished - 2001
MoE publication typeA1 Journal article-refereed

Fingerprint

Antimycin A
Maltose
Yeast
Fermentation
Saccharomyces cerevisiae
Yeasts
Growth
Biomass
Respiration
Ethanol
Carbon
Sugars
Glucose
maltotriose

Keywords

  • brewing
  • fermentation
  • maltotriose
  • Saccharomyces cerevisiae
  • transport

Cite this

Londesborough, John. / Fermentation of maltotriose by brewer's and baker's yeasts. In: Biotechnology Letters. 2001 ; Vol. 23, No. 24. pp. 1995-2000.
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Fermentation of maltotriose by brewer's and baker's yeasts. / Londesborough, John.

In: Biotechnology Letters, Vol. 23, No. 24, 2001, p. 1995-2000.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Fermentation of maltotriose by brewer's and baker's yeasts

AU - Londesborough, John

PY - 2001

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AB - Two brewer's yeasts and one baker's yeast grew with ≥95% (w/w) pure maltotriose as carbon source in the presence of antimycin A to block respiration. Biomass yields (0.15 and 0.24 g dry yeast g−1 sugar, respectively, with and without antimycin A) were similar for growth on maltose and maltotriose, and yields of ethanol were 80% of stoichiometric. Yeasts harvested during growth on glucose and containing low maltose transport activity did not begin to use maltotriose in the presence of antimycin A until after a long lag phase (up to 50 h), but yeast harvested during growth on maltose, and containing high maltose transport activity, began to use maltotriose after about 25 h. Much shorter lags were observed before growth started in the absence of antimycin A.

KW - brewing

KW - fermentation

KW - maltotriose

KW - Saccharomyces cerevisiae

KW - transport

U2 - 10.1023/A:1013722711620

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JO - Biotechnology Letters

JF - Biotechnology Letters

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