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

Paper ID Volume ID Publish Year Pages File Format Full-Text
36752 45146 2004 7 PDF Available
Title
A study on xylitol production from sugarcane bagasse hemicellulosic hydrolysate by Ca-alginate entrapped cells in a stirred tank reactor
Abstract

Candida guilliermondii FTI 20037 cells were entrapped in Ca-alginate beads and used for xylitol production from sugarcane bagasse hemicellulosic hydrolysate in a stirred tank reactor (STR). Screening design and response surface methodologies were used to determine adequate cultivation conditions for this fermentation system. Quadratic models were fitted to the experimental data by regression analysis, considering the yield (YP/S) and the productivity (QP) of the xylose-to-xylitol bioconversion as dependent variables. Using a five-fold concentrated hydrolysate, air flowrate of 1.30 l/min, agitation speed of 300 rpm, initial cell concentration of 1.4 g/l and value 6.0 for the initial pH of the fermentation medium resulted in a xylitol production of 47.5 g/l after 120 h of fermentation, corresponding to a YP/S of 0.81 g/g and to a QP of 0.40 g/l h.

Keywords
Xylitol; Sugarcane bagasse hydrolysate; Immobilized cells; Ca-alginate beads; Stirred tank reactor
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A study on xylitol production from sugarcane bagasse hemicellulosic hydrolysate by Ca-alginate entrapped cells in a stirred tank reactor
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Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 39, Issue 12, 29 October 2004, Pages 2135–2141
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us