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Demystifying Brettanomyces bruxellensis: Fermentation kinetics, flavour compound production, and nutrient requirements during wort fermentation

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dc.contributor.advisor van der Merwe, George
dc.contributor.author Tyrawa, Caroline
dc.date.accessioned 2019-01-09T15:47:35Z
dc.date.available 2019-12-03T06:00:33Z
dc.date.copyright 2019-01
dc.date.created 2018-12-04
dc.date.issued 2019-01-09
dc.identifier.uri http://hdl.handle.net/10214/14757
dc.description.abstract Brettanomyces bruxellensis is beginning to gain popularity in the craft brewing industry; however, a lack of research on this yeast and lengthy fermentation times present challenges for brewers. Here eight novel Brettanomyces strains were characterized and two were chosen for secondary and co-pitch fermentations, along with the industry standard BSI Drei. The ester and phenol content of these beers was slightly lower than that found in primary Brettanomyces fermentations. Regardless, mixed fermentations proved to be a viable approach to developing beers with “Brett character” in a shortened timeframe. It was also observed that ester and phenol synthesis peaked around day 14 and near the end of the fermentation, respectively. Furthermore, supplementation of thiamine or various amino acids to the pre-growth or fermentation appeared to have a positive effect on fermentation rate in a straindependent manner. Overall, these findings will allow brewers to be better informed when developing products using Brettanomyces. en_US
dc.description.sponsorship OMAFRA-University of Guelph Research Program (Product development through value chains; UoG2016-2623); OMAFRA-University of Guelph Gryphons LAAIR (LAAIR2015-5142) en_US
dc.language.iso en en_US
dc.publisher University of Guelph en_US
dc.subject Brettanomyces en_US
dc.subject yeast en_US
dc.subject fermentation en_US
dc.subject wort en_US
dc.subject Dekkera en_US
dc.title Demystifying Brettanomyces bruxellensis: Fermentation kinetics, flavour compound production, and nutrient requirements during wort fermentation en_US
dc.type Thesis en_US
dc.degree.programme Molecular and Cellular Biology en_US
dc.degree.name Master of Science en_US
dc.degree.department Department of Molecular and Cellular Biology en_US
dc.rights.license All items in the Atrium are protected by copyright with all rights reserved unless otherwise indicated.
dc.degree.grantor University of Guelph en_US


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