Xylitol production in a bubble column bioreactor: Influence of the aeration rate and immobilized system concentration

Ricardo Branco; Júlio C. Santos; Lucilene Y. Murakami; Solange I. Mussatto; Giuliano Dragone; Silvio S. Silva

doi:10.1016/j.procbio.2006.07.010

Xylitol production in a bubble column bioreactor: Influence of the aeration rate and immobilized system concentration

Ricardo Branco, Júlio C. Santos, Lucilene Y. Murakami, Solange I. Mussatto, Giuliano Dragone, Silvio S. Silva

Universidade de São Paulo

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

This work evaluated the xylitol production from sugarcane bagasse hemicellulosic hydrolysate in a bubble column bioreactor using cells of the yeast Candida guilliermondii immobilized in calcium-alginate. The fermentation runs were performed according to a 22 full factorial design with three replicates at the center point in order to determine the effect of the variables: aeration rate (0.66–1.33 vvm) and immobilized system concentration (20–40% v/v), on the efficiency of xylose-to-xylitol conversion and on the xylitol volumetric productivity. The results indicated a significant influence of both variables on xylitol production. The highest conversion efficiency (41%) was attained using 1.33 vvm aeration rate and 40% immobilized system. Under these conditions, the volumetric productivity was 0.21 g l−1 h−1.

Original language	English
Journal	Process Biochemistry
Volume	42
Pages (from-to)	258-262
ISSN	1359-5113
DOIs	https://doi.org/10.1016/j.procbio.2006.07.010
Publication status	Published - 2007
Externally published	Yes

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title = "Xylitol production in a bubble column bioreactor: Influence of the aeration rate and immobilized system concentration",

abstract = "This work evaluated the xylitol production from sugarcane bagasse hemicellulosic hydrolysate in a bubble column bioreactor using cells of the yeast Candida guilliermondii immobilized in calcium-alginate. The fermentation runs were performed according to a 22 full factorial design with three replicates at the center point in order to determine the effect of the variables: aeration rate (0.66–1.33 vvm) and immobilized system concentration (20–40% v/v), on the efficiency of xylose-to-xylitol conversion and on the xylitol volumetric productivity. The results indicated a significant influence of both variables on xylitol production. The highest conversion efficiency (41%) was attained using 1.33 vvm aeration rate and 40% immobilized system. Under these conditions, the volumetric productivity was 0.21 g l−1 h−1.",

author = "Ricardo Branco and {C. Santos}, J{\'u}lio and {Y. Murakami}, Lucilene and Mussatto, {Solange I.} and Giuliano Dragone and {S. Silva}, Silvio",

year = "2007",

doi = "10.1016/j.procbio.2006.07.010",

language = "English",

volume = "42",

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TY - JOUR

T1 - Xylitol production in a bubble column bioreactor: Influence of the aeration rate and immobilized system concentration

AU - Branco, Ricardo

AU - C. Santos, Júlio

AU - Y. Murakami, Lucilene

AU - Mussatto, Solange I.

AU - Dragone, Giuliano

AU - S. Silva, Silvio

PY - 2007

Y1 - 2007

N2 - This work evaluated the xylitol production from sugarcane bagasse hemicellulosic hydrolysate in a bubble column bioreactor using cells of the yeast Candida guilliermondii immobilized in calcium-alginate. The fermentation runs were performed according to a 22 full factorial design with three replicates at the center point in order to determine the effect of the variables: aeration rate (0.66–1.33 vvm) and immobilized system concentration (20–40% v/v), on the efficiency of xylose-to-xylitol conversion and on the xylitol volumetric productivity. The results indicated a significant influence of both variables on xylitol production. The highest conversion efficiency (41%) was attained using 1.33 vvm aeration rate and 40% immobilized system. Under these conditions, the volumetric productivity was 0.21 g l−1 h−1.

AB - This work evaluated the xylitol production from sugarcane bagasse hemicellulosic hydrolysate in a bubble column bioreactor using cells of the yeast Candida guilliermondii immobilized in calcium-alginate. The fermentation runs were performed according to a 22 full factorial design with three replicates at the center point in order to determine the effect of the variables: aeration rate (0.66–1.33 vvm) and immobilized system concentration (20–40% v/v), on the efficiency of xylose-to-xylitol conversion and on the xylitol volumetric productivity. The results indicated a significant influence of both variables on xylitol production. The highest conversion efficiency (41%) was attained using 1.33 vvm aeration rate and 40% immobilized system. Under these conditions, the volumetric productivity was 0.21 g l−1 h−1.

U2 - 10.1016/j.procbio.2006.07.010

DO - 10.1016/j.procbio.2006.07.010

M3 - Journal article

SN - 1359-5113

VL - 42

SP - 258

EP - 262

JO - Process Biochemistry

JF - Process Biochemistry

ER -

Xylitol production in a bubble column bioreactor: Influence of the aeration rate and immobilized system concentration

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