The role of small wort peptides in brewing fermentations

C. Lekkas; A. E. Hill; B. Taidi; J. Hodgson; G. G. Stewart

doi:10.1002/j.2050-0416.2009.tb00358.x

The role of small wort peptides in brewing fermentations

C. Lekkas, A. E. Hill, B. Taidi, J. Hodgson, G. G. Stewart

Research output: Contribution to journal › Article › peer-review

44 Citations (Scopus)

Abstract

The utilisation of small peptides by brewing yeast is poorly understood despite a wealth of information on peptide transport by other microorganisms. A novel method for detection, isolation and measurement of small peptides during brewery wort fermentations was used to monitor utilisation by ale and lager yeast strains. Oligopeptide levels in wort were found to fluctuate throughout the fermentations. Measurement of extracellular protease activity provided evidence that yeast are able to continually regulate protease production in order to break down wort polypeptides into utilisable nitrogeneous materials. © 2009 The Institute of Brewing & Distilling.

Original language	English
Pages (from-to)	134-139
Number of pages	6
Journal	Journal of the Institute of Brewing
Volume	115
Issue number	2
DOIs	https://doi.org/10.1002/j.2050-0416.2009.tb00358.x
Publication status	Published - 2009

Keywords

Free amino nitrogen
Wort oligopeptides
Yeast proteases

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10.1002/j.2050-0416.2009.tb00358.x

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AU - Taidi, B.

AU - Hodgson, J.

AU - Stewart, G. G.

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AB - The utilisation of small peptides by brewing yeast is poorly understood despite a wealth of information on peptide transport by other microorganisms. A novel method for detection, isolation and measurement of small peptides during brewery wort fermentations was used to monitor utilisation by ale and lager yeast strains. Oligopeptide levels in wort were found to fluctuate throughout the fermentations. Measurement of extracellular protease activity provided evidence that yeast are able to continually regulate protease production in order to break down wort polypeptides into utilisable nitrogeneous materials. © 2009 The Institute of Brewing & Distilling.

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JF - Journal of the Institute of Brewing

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ER -

The role of small wort peptides in brewing fermentations

Abstract

Keywords

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