Brewer’s spent yeast (BSY), an underutilized brewing by-product

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dc.contributor.authorJaeger, Alice
dc.contributor.authorArendt, Elke K.
dc.contributor.authorZannini, Emanuele
dc.contributor.authorSahin, Aylin W.
dc.contributor.funderHorizon 2020en
dc.date.accessioned2021-09-06T13:52:23Z
dc.date.available2021-09-06T13:52:23Z
dc.date.issued2020-12-11
dc.description.abstractThe repurposing of by-products and the reduction of waste from food processing streams is an ever-increasing area of interest. Brewer’s spent yeast (BSY) is a prevalent by-product of the brewing industry. The spent yeast cells are removed at the end of the bulk fermentation. A small amount of it is used to start the next batch of fermentation; however, the majority of the spent yeast is discarded. This discarded yeast is high in nutrients, in particular proteins, vitamins and minerals, as well as containing functional and biologically active compounds such as polyphenols, antioxidants, β-glucans and mannoproteins. At present, BSY is mainly used in animal feed as a cheap and readily available source of protein. This review explores alternative, value-added applications for brewer’s spent yeast including nutritional ingredients, functional food additives as well as non-food applications. A major challenge in the utilization of BSY in food for human consumption is the high level of RNA. An excess of RNA in the diet can lead to an increase in uric acid in the bloodstream, potentially causing painful health conditions like gout. This issue can be overcome by RNA degradation and removal via additional treatment, namely heat treatment and enzymatic treatment. There is potential for the use of BSY ingredients in various food applications, including meat substitutes, bakery products and savory snacks.en
dc.description.statusPeer revieweden
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.articleid123en
dc.identifier.citationJaeger, A., Arendt, E. K., Zannini, E. and Sahin, A. W. (2020) 'Brewer’s Spent Yeast (BSY), an Underutilized Brewing By-Product', Fermentation, 6(4), 123 (18 pp). doi: 10.3390/fermentation6040123en
dc.identifier.doi10.3390/fermentation6040123en
dc.identifier.endpage23en
dc.identifier.issn2311-5637
dc.identifier.issued4en
dc.identifier.journaltitleFermentationen
dc.identifier.startpage1en
dc.identifier.urihttps://hdl.handle.net/10468/11836
dc.identifier.volume6en
dc.language.isoenen
dc.publisherMDPIen
dc.relation.projectinfo:eu-repo/grantAgreement/EC/H2020::IA/818368/EU/Microbiome Applications for Sustainable food systems through Technologies and EnteRprise/MASTERen
dc.relation.urihttps://www.mdpi.com/2311-5637/6/4/123
dc.rights© 2020 by the authors. Licensee MDPI, Basel, Switzerland. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly citeden
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en
dc.subjectFermentationen
dc.subjectBrewer’s yeasten
dc.subjectSaccharomyces cerevisiaeen
dc.subjectYeast β-glucansen
dc.subjectFood applicationsen
dc.titleBrewer’s spent yeast (BSY), an underutilized brewing by-producten
dc.typeArticle (peer-reviewed)en
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