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| Format: | Artículo científico |
| Language: | en |
| Published: |
Sociedad Mexicana de Nutrición y Tecnología de Alimentos
2003
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| Online Access: | https://www.redalyc.org/articulo.oa?id=72420402 |
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Table of Contents:
- Optimisation of culture media for Candida parapsilosis NRRL Y-2315 I. A. Santos J. M. Cruz J. A. Ramírez M. Vázquez Química xylitol media optimisation Candida Parapsilosis response surface metodology Xylitol is a sweetener with important technological properties like anticariogenecity, low caloric value, and negative dissolutionheat. Its production is in great demand because it can be used successfully in food formulations and pharmaceutical industries. Eventhough xylitol can be produced by a variety of micro-organisms, yeasts have been the most widely studied ones. In this work, anexperimental design was followed in order to optimize the concentration of yeast extract, malt extract and peptone in the productionof biomass in xylose solutions by the yeast Candida parapsilosis NRRL Y-2315, as a first step in the production of xylitol. By usingan initial concentration of 13 g of xylose/L, the model predicts that 7.1 g of biomass/L can be obtained using media with 4.5 g yeastextract/L, 2.3 g malt extract/L and 6 g peptone/L. The models predicted also that 4 g of xylitol/L can be obtained using media with 6 gyeast extract/L, 6 g malt extract/L and 5.2 g peptone/L. The biomass yield (0.5 g/g) and xylitol yield (0.314 g/g) obtained was in the rangeof other micro-organisms xylitol producers. © 2003 Altaga. All rights reserved. 2003 artículo científico 1135-8122 https://www.redalyc.org/articulo.oa?id=72420402 en http://www.redalyc.org/revista.oa?id=724 Ciencia y Tecnología Alimentaria application/pdf Sociedad Mexicana de Nutrición y Tecnología de Alimentos Ciencia y Tecnología Alimentaria (México) Num.2 Vol.4