Microaerophilic metabolism of Pachysolen tannophilus at different pH values
Source: Biotechnology Letters, Volume 21, Number 8, August 1999 , pp. 719-723(5)
Abstract:Microaerophilic production of xylitol by Pachysolen tannophilus from detoxified hemicellulose hydrolyzate was optimal between pH values 6.0 to 7.5 when about 90% of xylose was utilized for xylitol production, the rest being fermented to ethanol. At pH values of 3.0 and 12.0, respiration became important, consuming up to 30% of available xylose. A graphic procedure suggests that histamine and cysteine are at the active site of xylose reductase in this yeast.
Document Type: Regular Paper
Affiliations: 1: Department of Chemical and Process Engineering `G.B. Bonino', University of Genoa, Via Opera Pia 15, 16145 Genoa, Italy 2: Departamento de Ingenieria Química, Universidad de Vigo, Campus de Ourense, As Lagoas s/n, 32004 Ourense, Spain
Publication date: August 1, 1999