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.
|Publication status||Published - 2004|
|MoE publication type||Not Eligible|
|Event||NORFA Yeast Systems Biology Workshop - Copenhagen, Denmark|
Duration: 17 Nov 2004 → 21 Nov 2004
|Workshop||NORFA Yeast Systems Biology Workshop|
|Period||17/11/04 → 21/11/04|
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.