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Hydrolysate detoxification with activated charcoal for xylitol production by Candida guilliermondii

Mussatto, S.; Roberto, I.

Biotechnology letters 23(20): 1681-1684

2001


ISSN/ISBN: 0141-5492
DOI: 10.1023/a:1012492028646
Accession: 003799148

A detoxification method using activated charcoal with concentrated rice straw hemicellulosic hydrolysate improved the conversion of xylose to xylitol by the yeast Candida guilliermondii by 22%. This was achieved when the hydrolysate:charcoal ratio was 40 g g(-1), resulting in removal of 27% of phenolic compounds. Under this condition, the xylitol yield factor (0.72 g g(-1)) and volumetric productivity (0.61 g l(-1) h(-1)) were close to those attained in a semi-defined medium simulating hydrolysate sugars.

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