Production of xylitol from concentrated wood hydrolysates byDebaryomyces hansenii: Effect of the initial cell concentration

✍ Scribed by J. C. Parajó; H. Domínguez; J. M. Domínguez

• Publisher: Springer Netherlands
• Year: 1996
• Tongue: English
• Weight: 419 KB
• Volume: 18
• Category: Article
• ISSN: 0141-5492
• DOI: 10.1007/bf00140209

✦ Synopsis

Euca&ptus globulus wood hydrolysates were concentrated by vacuum evaporation to increase their xylose contents, treated with activated charcoal, supplemented with nutrients and used as culture media for xylitol production by Debatyomyces hansenii NRRL, Y-7426. The susceptibility of hydrolysates to fermentation was strongly dependent on the initial cell concentration: media containing 58-78 g xylose/l were hardly consumed in batch experiments startiq with 16 g cells /l, whereas 3941 g xylitol/l were achieved in fimnentations carried out with similar concentration of the carbon source and initial cell concentrations of 50-80 g/l).