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Kazachstania gamospora and Wickerhamomyces subpelliculosus : Two alternative baker's yeasts in the modern bakery

Zhou, Nerve LU ; Schifferdecker, Anna Judith LU ; Gamero, Amparo; Compagno, Concetta; Boekhout, Teun; Piskur, Jure LU and Knecht, Wolfgang LU (2017) In International Journal of Food Microbiology 250. p.45-58
Abstract

Saccharomyces cerevisiae, the conventional baker's yeast, remains the most domesticated yeast monopolizing the baking industry. Its rapid consumption of sugars and production of CO2 are the most important attributes required to leaven the dough. New research attempts highlight that these attributes are not unique to S. cerevisiae, but also found in several non-conventional yeast species. A small number of these yeast species with similar properties have been described, but remain poorly studied. They present a vast untapped potential for the use as leavening agents and flavor producers due to their genetic and phylogenetic diversity. We assessed the potential of several non-conventional yeasts as leavening agents and flavor... (More)

Saccharomyces cerevisiae, the conventional baker's yeast, remains the most domesticated yeast monopolizing the baking industry. Its rapid consumption of sugars and production of CO2 are the most important attributes required to leaven the dough. New research attempts highlight that these attributes are not unique to S. cerevisiae, but also found in several non-conventional yeast species. A small number of these yeast species with similar properties have been described, but remain poorly studied. They present a vast untapped potential for the use as leavening agents and flavor producers due to their genetic and phylogenetic diversity. We assessed the potential of several non-conventional yeasts as leavening agents and flavor producers in dough-like conditions in the presence of high sugar concentrations and stressful environments mimicking conditions found in flour dough. We tested the capabilities of bread leavening and aroma formation in a microbread platform as well as in a bakery setup. Bread leavened with Kazachstania gamospora and Wickerhamomyces subpelliculosus had better overall results compared to control baker's yeast. In addition, both displayed higher stress tolerance and broader aroma profiles than the control baker's yeast. These attributes are important in bread and other farinaceous products, making K. gamospora and W. subpelliculosus highly applicable as alternative baker's yeasts.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Ascomycetous yeasts, Baking, Bread, Microbread, Non-conventional yeasts
in
International Journal of Food Microbiology
volume
250
pages
14 pages
publisher
Elsevier
external identifiers
  • scopus:85016443293
  • wos:000401374800007
ISSN
0168-1605
DOI
10.1016/j.ijfoodmicro.2017.03.013
language
English
LU publication?
yes
id
62bede9a-5fed-4c7c-8c2c-7f1726e155c7
date added to LUP
2017-04-11 11:07:26
date last changed
2018-01-07 11:58:53
@article{62bede9a-5fed-4c7c-8c2c-7f1726e155c7,
  abstract     = {<p>Saccharomyces cerevisiae, the conventional baker's yeast, remains the most domesticated yeast monopolizing the baking industry. Its rapid consumption of sugars and production of CO<sub>2</sub> are the most important attributes required to leaven the dough. New research attempts highlight that these attributes are not unique to S. cerevisiae, but also found in several non-conventional yeast species. A small number of these yeast species with similar properties have been described, but remain poorly studied. They present a vast untapped potential for the use as leavening agents and flavor producers due to their genetic and phylogenetic diversity. We assessed the potential of several non-conventional yeasts as leavening agents and flavor producers in dough-like conditions in the presence of high sugar concentrations and stressful environments mimicking conditions found in flour dough. We tested the capabilities of bread leavening and aroma formation in a microbread platform as well as in a bakery setup. Bread leavened with Kazachstania gamospora and Wickerhamomyces subpelliculosus had better overall results compared to control baker's yeast. In addition, both displayed higher stress tolerance and broader aroma profiles than the control baker's yeast. These attributes are important in bread and other farinaceous products, making K. gamospora and W. subpelliculosus highly applicable as alternative baker's yeasts.</p>},
  author       = {Zhou, Nerve and Schifferdecker, Anna Judith and Gamero, Amparo and Compagno, Concetta and Boekhout, Teun and Piskur, Jure and Knecht, Wolfgang},
  issn         = {0168-1605},
  keyword      = {Ascomycetous yeasts,Baking,Bread,Microbread,Non-conventional yeasts},
  language     = {eng},
  month        = {06},
  pages        = {45--58},
  publisher    = {Elsevier},
  series       = {International Journal of Food Microbiology},
  title        = {Kazachstania gamospora and Wickerhamomyces subpelliculosus : Two alternative baker's yeasts in the modern bakery},
  url          = {http://dx.doi.org/10.1016/j.ijfoodmicro.2017.03.013},
  volume       = {250},
  year         = {2017},
}