Enhanced Xylitol Production by Precultivation of Candida guilliermondii Cells in Sugarcane Bagasse Hemicellulosic Hydrolysate

2006 ◽  
Vol 53 (1) ◽  
pp. 53-59 ◽  
Author(s):  
Rita C.L.B. Rodrigues ◽  
Luciane Sene ◽  
Gilvane S. Matos ◽  
Inês C. Roberto ◽  
Adalberto Pessoa ◽  
...  
Keyword(s):  
Sugarcane Bagasse ◽  
Candida Guilliermondii ◽  
Xylitol Production ◽  
Hemicellulosic Hydrolysate

Short-Term Adaptation Strategy Improved Xylitol Production by Candida Guilliermondii on Sugarcane Bagasse Hemicellulosic Hydrolysate

2021 ◽  
Author(s):  
Italo de Andrade Bianchini ◽  
Luciane Sene ◽  
Mário Antônio Alves da Cunha ◽  
Maria das Graças de Almeida Felipe
Keyword(s):  
Sugarcane Bagasse ◽  
Adaptation Strategy ◽  
Candida Guilliermondii ◽  
Xylitol Production ◽  
Short Term ◽  
Biotechnological Production ◽  
Toxic Compounds ◽  
Hemicellulosic Hydrolysate ◽  
Beneficial Effects ◽  
Short Term Adaptation

Abstract One of the major bottlenecks of the biotechnological production of xylitol by pentose-fermenting yeasts is the presence of toxic compounds in the hemicellulosic hydrolysates, which inhibit the bioconversion of xylose into xylitol. In this work, short-term adaptation was evaluated as a strategy to minimize the toxicity of the sugarcane bagasse hemicellulosic hydrolysate to Candida guilliermondii FTI 20037. Yeast adaptation improved xylose assimilation as well as xylitol production. The beneficial effects of adaptation were more pronounced in the hydrolysate with higher concentration of toxic compounds, leading to an increase of 62.5% in the xylitol volumetric productivity in comparison to the use of non-adapted cells. In this condition, it was also verified the reduction of glycerol production (about 102%), a by-product formed as consequence of cellular stress, indicating a greater tolerance of adapted cells to the toxicity of hydrolysates. Short-term adaptation proved to be a promising strategy to improve considerably the microbial tolerance and overcome the toxicity of hydrolysates.

Scale up of xylitol production from sugarcane bagasse hemicellulosic hydrolysate by Candida guilliermondii FTI 20037

2017 ◽  
Vol 47 ◽  
pp. 297-302 ◽  
Author(s):  
Priscila Vaz de Arruda ◽  
Júlio César dos Santos ◽  
Rita de Cássia Lacerda Brambilla Rodrigues ◽  
Débora Danielle Virgínio da Silva ◽  
Celina Kiyomi Yamakawa ◽  
...  
Keyword(s):  
Sugarcane Bagasse ◽  
Scale Up ◽  
Candida Guilliermondii ◽  
Xylitol Production ◽  
Hemicellulosic Hydrolysate

Use of Immobilized Candida Cells on Xylitol Production from Sugarcane Bagasse

2000 ◽  
Vol 55 (3-4) ◽  
pp. 213-217 ◽  
Author(s):  
Walter de Carvalho ◽  
Silvio Silvério da Silva ◽  
Michele Vitolo ◽  
Ismael Maciel de Mancilha
Keyword(s):  
Sugarcane Bagasse ◽  
Immobilized Cells ◽  
Alginate Beads ◽  
Candida Guilliermondii ◽  
Volumetric Productivity ◽  
Xylitol Production ◽  
Experimental Conditions ◽  
Work Volume ◽  
Yield Factor ◽  
Ca Alginate

Abstract In this study we used the yeast Candida guilliermondii FTI 20037 immobilized by entrapment in Ca-alginate beads (2 .5 -3 mm diameter) for xylitol production from concentrated sugarcane bagasse hemicellulosic hydrolysate in a repeated batch system. The fermentation runs were carried out in 125- and 250-ml Erlenmeyer flasks placed in an orbital shaker at 30 °C and 200 rpm during 72 h, keeping constant the proportion between work volume and flask total volume. According to the results, cell viability was substantially high (98%) in all fermentative cycles. The values of parameters xylitol yield and volumetric productivity increased significantly with the reutilization of the immobilized biocatalysts. The highest values of xylitol final concentration (11.05 g/1), yield factor (0.47 gig) and volumetric productivity (0.22 g/lh) were obtained in 250-ml Erlenmeyer flasks containing 80 ml of medium plus 20 mi of immobilized biocatalysts. The support used in this study (Ca-alginate) presented stability in the experimental conditions used. The results show that the use of immobilized cells is a promising approach for increasing the xylitol production rates.

A study on xylitol production from sugarcane bagasse hemicellulosic hydrolysate by Ca-alginate entrapped cells in a stirred tank reactor

2004 ◽  
Vol 39 (12) ◽  
pp. 2135-2141 ◽  
Author(s):  
Walter Carvalho ◽  
Julio C. Santos ◽  
Larissa Canilha ◽  
João B. Almeida e Silva ◽  
Maria G.A. Felipe ◽  
...  
Keyword(s):  
Sugarcane Bagasse ◽  
Stirred Tank ◽  
Xylitol Production ◽  
Stirred Tank Reactor ◽  
Tank Reactor ◽  
Hemicellulosic Hydrolysate ◽  
Ca Alginate

Improvement in Xylitol Production from Sugarcane Bagasse Hydrolysate Achieved by the Use of a Repeated-Batch Immobilized Cell System

2002 ◽  
Vol 57 (1-2) ◽  
pp. 109-112 ◽  
Author(s):  
Walter Carvalho ◽  
Silvio S. Silva ◽  
Michele Vitolo ◽  
Maria G. A. Felipe ◽  
Ismael M. Mancilha
Keyword(s):  
Sugarcane Bagasse ◽  
Alginate Beads ◽  
Cell System ◽  
Candida Guilliermondii ◽  
Xylitol Production ◽  
Immobilized Cell ◽  
Sugarcane Bagasse Hydrolysate ◽  
Mean Values ◽  
Repeated Batch ◽  
Ca Alginate

Candida guilliermondii cells were immobilized in Ca-alginate beads and used for xylitol production from concentrated sugarcane bagasse hydrolysate during five successive fermentation batches, each lasting 48 hours. The bioconversion efficiency of 53.2%, the productivity of 0.50 g/l × h and the final xylitol concentration of 23.8 g/l obtained in the first batch increased to 61.5%, 0.59 g/l × h and 28.4 g/l, respectively, in the other four batches (mean values), with variation coefficients of up to 2.3%.

Evaluation of hexose and pentose in pre-cultivation of Candida guilliermondii on the key enzymes for xylitol production in sugarcane hemicellulosic hydrolysate

2010 ◽  
Vol 22 (4) ◽  
pp. 815-822 ◽  
Author(s):  
Priscila Vaz de Arruda ◽  
Rita de Cássia Lacerda Brambilla Rodrigu ◽  
Débora Danielle Virgínio da Silva ◽  
Maria das Graças de Almeida Felipe
Keyword(s):  
Candida Guilliermondii ◽  
Xylitol Production ◽  
Key Enzymes ◽  
Hemicellulosic Hydrolysate

scholarly journals Xylitol production by Debaryomyces hansenii and Candida guilliermondii from rapeseed straw hemicellulosic hydrolysate

2018 ◽  
Vol 247 ◽  
pp. 736-743 ◽  
Author(s):  
Juan Carlos López-Linares ◽  
Inmaculada Romero ◽  
Cristobal Cara ◽  
Eulogio Castro ◽  
Solange I. Mussatto
Keyword(s):  
Debaryomyces Hansenii ◽  
Candida Guilliermondii ◽  
Xylitol Production ◽  
Rapeseed Straw ◽  
Hemicellulosic Hydrolysate
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