The free and carrier-bound yeast populations from a two-stage immobilised yeast reactor are in different physiological condition

Virve Vidgren, Anne Huuskonen, Ilkka Virkajärvi, Heini Koivistoinen, John Londesborough

Research output: Contribution to conferenceConference articleScientific

Abstract

To better understand the operation of a 2-stage immobilised yeast reactor making beer from wort, different yeast populations from the first stage were analysed. Yeast amounts (mg fresh yeast/g wood chip) were about: free, 10; loosely bound, 78; tightly bound, 40. Proteomics showed that from the 300 most abundant soluble proteins 38 had at least 2-fold different abundancies in free and loosely bound yeast. Some of these variable proteins have been identified. Loosely bound yeast contained less sterol and less unsaturated fatty acids than free yeast. Maltose permease activity was two-fold greater in free than loosely bound yeast.
Original languageEnglish
Publication statusPublished - 2004
MoE publication typeNot Eligible
EventNORFA Yeast Systems Biology Workshop - Copenhagen, Denmark
Duration: 17 Nov 200421 Nov 2004

Workshop

WorkshopNORFA Yeast Systems Biology Workshop
CountryDenmark
CityCopenhagen
Period17/11/0421/11/04

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    Vidgren, V., Huuskonen, A., Virkajärvi, I., Koivistoinen, H., & Londesborough, J. (2004). The free and carrier-bound yeast populations from a two-stage immobilised yeast reactor are in different physiological condition. Paper presented at NORFA Yeast Systems Biology Workshop, Copenhagen, Denmark.