Abstract:
:Gluten-free beer-like beverages from malted buckwheat and quinoa are somehow close to their commercial production, but rather high expenses are expected due to the relatively high price of grain, some technological adaptations of process and the need for external enzyme supplementation during mashing. One of the common and efficient cost reduction measures in the industrial scale is serial repitching of the yeast biomass, which has not been studied for the buckwheat and quinoa wort fermentation before. In that manner we have monitored possible changes in yeast's proteins and chromosomal DNA during eleven serial repitchings of the yeast Saccharomyces pastorianus strain TUM 34/70 for fermentation of the barley, buckwheat and quinoa wort. Karyotypes showed changes in regard to the raw materials used and many responsible candidate proteins are suggested which could cause these differences. Different relative expressions of some protein bands were also linked to the proteins involved in yeast stress response and proteins involved in fermentation performance. Results suggest that serial repitching of the strain TUM 34/70 seems suitable for the production of gluten-free beer-like beverages from buckwheat and quinoa.
journal_name
Int J Food Microbioljournal_title
International journal of food microbiologyauthors
Deželak M,Gebremariam MM,Cadež N,Zupan J,Raspor P,Zarnkow M,Becker T,Košir IJdoi
10.1016/j.ijfoodmicro.2014.05.023subject
Has Abstractpub_date
2014-08-18 00:00:00pages
93-102eissn
0168-1605issn
1879-3460pii
S0168-1605(14)00267-0journal_volume
185pub_type
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