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 200 most abundant soluble proteins only 19 were present at different levels (up to 12-fold) in free and loosely bound yeast. Maltose permease activity was two-fold greater in free than loosely bound yeast. Other differences will be reported.
|Title of host publication||Proceedings of the 29th EBC Congress, Dublin 2003|
|Publisher||Fachverlag Hans Carl|
|Publication status||Published - 2003|
|MoE publication type||A4 Article in a conference publication|
|Event||29th European Brewery Convention EBC Congress 2003 - Dublin, Ireland|
Duration: 17 May 2003 → 22 May 2003
|Conference||29th European Brewery Convention EBC Congress 2003|
|Period||17/05/03 → 22/05/03|
- enzymic activity
- immobilized yeast
- maltose permease
- yeast analysis
Vidgren, V., Virkajärvi, I., Ruohonen, L., Salusjärvi, L., & Londesborough, J. (2003). The free and carrier-bound yeast populations from a two-stage immobilized yeast reactor are in different physiological conditions. In Proceedings of the 29th EBC Congress, Dublin 2003 (pp. 609-617). Fachverlag Hans Carl.