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Part I: the influence of serial repitching of Saccharomyces pastorianus on the uptake dynamics of metal ions and fermentable carbohydrates during the fermentation of barley and gluten-free buckwheat and quinoa wortDeželak, Matjaž, 1984- ...Recently, research has been focusing on the use of alternative raw materials for brewing purposes and gluten-free beer-like beverages from malted buckwheat and quinoa are of commercial interest. A ... common commercial process involves the serial repitching of the yeast biomass, but this has not been described using buckwheat and quinoa wort fermentations. Our research studies (Parts I-III) explored the serial repitching of the yeast strain Saccharomyces pastorianus TUM 34/70 on the composition of a barley, buckwheat and quinoa fermentation medium. The present paper focuses on the fermentation performance and the uptake dynamics of metal ions and fermentable carbohydrates. Both pseudocereals showed high variations in all of the attributes examined during successive fermentations. In buckwheat the differences between successive fermentations were similar to those observed with barley, whereas differences in quinoa varied quite significantly from those observed with barley and showed a directional trend, suggesting a general weakening of the yeast from the sixth successive fermentation onward. In particular, the assimilation of the fermentable carbohydrates lessened and metal ion uptake appeared poorly controlled. It was concluded that buckwheat showed good potential for serial repitching of S. pastorianus TUM 34/70, whereas serial repitching of a quinoa wort appeared to be limited to five or six fermentations.Source: Journal of the Institute of Brewing. - ISSN 0046-9750 (Vol. 121, iss. 3, 2015, str. 356-569)Type of material - article, component part ; adult, seriousPublish date - 2015Language - englishCOBISS.SI-ID - 512510520
Author
Deželak, Matjaž, 1984- |
Gebremariam, Mekonnen M. |
Zarnkow, Martin |
Becker, Thomas, živilski tehnolog |
Košir, Iztok Jože, 1970-
Topics
brezglutenske pijače |
pivu podobne pijače |
ajda |
kvinoja |
Saccharomyces pastorianus TUM 34/70 |
gluten-free beverages |
beer-like beverages |
buckwheat |
quinoa |
Saccharomyces pastorianus TUM 34/70
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source: Journal of the Institute of Brewing. - ISSN 0046-9750 (Vol. 121, iss. 3, 2015, str. 356-569)
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Deželak, Matjaž, 1984- | 33104 |
Gebremariam, Mekonnen M. | ![]() |
Zarnkow, Martin | ![]() |
Becker, Thomas, živilski tehnolog | ![]() |
Košir, Iztok Jože, 1970- | 17916 |
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