The yeast vacuole - A scanning electron microscopy study during high gravity wort fermentations

Patricia L. Pratt; James H. Bryce; Graham G. Stewart

The yeast vacuole - A scanning electron microscopy study during high gravity wort fermentations

Patricia L. Pratt, James H. Bryce, Graham G. Stewart

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

Abstract

The yeast vacuole has been shown to exhibit morphological responses to environmental conditions when exposed to worts of different gravity during fermentation, Marked effects of high gravity wort (20° Plato) on yeast morphology compared to more conventional wort gravity (12° Plato) were observed. High gravity worts caused vacuolar enlargement compared to conventional gravity wort. These results suggested that yeast cells experienced severe alterations with the vacuolar tonoplast when exposed to high osmotic pressure and elevated levels of ethanol. © 2007 The Institute of Brewing & Distilling.

Original language	English
Pages (from-to)	55-60
Number of pages	6
Journal	Journal of the Institute of Brewing
Volume	113
Issue number	1
Publication status	Published - 2007

Keywords

Ethanol
High gravity wort
Morphology
Osmotic pressure
Vacuole
Yeast stress

Cite this

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abstract = "The yeast vacuole has been shown to exhibit morphological responses to environmental conditions when exposed to worts of different gravity during fermentation, Marked effects of high gravity wort (20° Plato) on yeast morphology compared to more conventional wort gravity (12° Plato) were observed. High gravity worts caused vacuolar enlargement compared to conventional gravity wort. These results suggested that yeast cells experienced severe alterations with the vacuolar tonoplast when exposed to high osmotic pressure and elevated levels of ethanol. {\textcopyright} 2007 The Institute of Brewing & Distilling.",

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AB - The yeast vacuole has been shown to exhibit morphological responses to environmental conditions when exposed to worts of different gravity during fermentation, Marked effects of high gravity wort (20° Plato) on yeast morphology compared to more conventional wort gravity (12° Plato) were observed. High gravity worts caused vacuolar enlargement compared to conventional gravity wort. These results suggested that yeast cells experienced severe alterations with the vacuolar tonoplast when exposed to high osmotic pressure and elevated levels of ethanol. © 2007 The Institute of Brewing & Distilling.

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KW - High gravity wort

KW - Morphology

KW - Osmotic pressure

KW - Vacuole

KW - Yeast stress

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The yeast vacuole - A scanning electron microscopy study during high gravity wort fermentations

Abstract

Keywords

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