Xylitol production by Candida species grown on a grass hydrolysate

  title={Xylitol production by Candida species grown on a grass hydrolysate},
  author={Thomas P. West},
  journal={World Journal of Microbiology and Biotechnology},
  • T. West
  • Published 4 January 2009
  • Biology, Environmental Science, Engineering
  • World Journal of Microbiology and Biotechnology
Xylitol was produced by selected species of the yeast Candida after growth on a medium containing a hydrolysate of the North American perennial prairie grass big bluestem. The grass was hydrolysed by a combination of dilute acid and enzymatic treatments. After growth on the medium for 120 h at 30 °C, Candida tropicalis ATCC 750 produced a 1.4-fold higher level of xylitol than did C. tropicalis ATCC 20215 while biomass production by C. tropicalis ATCC 750 was 1.7-fold higher than Candida… 
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This is the study which reported the use of, Water hyacinth (Eichornia crassipes) for xylitol production by dilute acid hydrolysis using 2% (v/v) H 2 SO 4 and xylose.
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Study The Factors Effecting For Xylitol Production
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The dual yield produced by Candida tropicalis strain LY15 using pomegranate peel makes the organism potent candidate for industrial application.


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Thirty different yeast strains belonging to four different genera (Candida, Debaryomyces, Hansenula and Pichia) were evaluated for xylitol production in rice straw hemicellulose hydrolysate under two aeration levels and the best performance was by C. mogii, which yielded 0.65 g Xylitol/g at 0.40 g/l.
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A conventional TLC was adapted for easy determination of xylose and xylitol in the culture supernatant solutions and appears to be suitable for the first steps of a screening program to selectxylitol-producing yeasts from natural environments.
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The fermentation of d-glucose and d-xylose mixtures by the yeast Candida tropicalis NBRC 0618 has been studied under the most favourable operation conditions for the culture, determining the most
Microbial production of xylitol from glucose.
A microbiological method is described for the production of xylitol, which is used as a sugar substitute for diabetics, and D-Xylulose, but not glucose, was dissimilated toxylitol by yeasts under aerobic conditions.
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The results showed that xylitol yield by this strain was affected by the nitrogen source, and was highest at 30–35°C, and could be increased with decreasing aeration rate.
A rare sugar xylitol. Part II: biotechnological production and future applications of xylitol
The biotechnological method of producing xylitol by metabolically engineered yeasts, Saccharomyces cerevisiae or Candida, has been studied as an alternative to the chemical method.
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The kinetics of the posthydrolysis step was characterized on the basis of experimental data concerning the time courses of the concentrations of xylooligosaccharides, xylose, furfural, and acetic acid.
Production of Ethanol from d-Xylose by Using d-Xylose Isomerase and Yeasts
Results indicate that ethanol could be produced from d-xylose in a yield of greater than 80% by a two-step process, which appears to be carried out by many yeasts known for d-glucose fermentation.
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A murine hybridoma was adapted to grow in media containing alternative carbohydrates to glucose and a high specific antibody productivity was observed in the cultures containing the polyols, sorbitol, or xylitol, even though the cell yields and growth rates were lower than the glucose-based control.