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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Biochemical conversion of sugarcane straw hemicellulosic hydrolyzate supplemented with co-substrates for xylitol production

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Author(s):
Hernandez-Perez, A. F. [1] ; Costa, I. A. L. [1] ; Silva, D. D. V. [1] ; Dussan, K. J. [1] ; Villela, T. R. [1] ; Canettieri, E. V. [2] ; Carvalho, Jr., J. A. [2] ; Soares Neto, T. G. [3] ; Felipe, M. G. A. [1]
Total Authors: 9
Affiliation:
[1] Univ Sao Paulo, Escola Engn Lorena, Dept Biotecnol, BR-12602810 Sao Paulo - Brazil
[2] Univ Estadual Paulista, Dept Engn, BR-12516410 Sao Paulo - Brazil
[3] Inst Nacl Pesquisas Espaciais, Lab Associado Combustao & Prop, BR-12630970 Sao Paulo - Brazil
Total Affiliations: 3
Document type: Journal article
Source: Bioresource Technology; v. 200, p. 1085-1088, JAN 2016.
Web of Science Citations: 9
Abstract

Biotechnological production of xylitol is an attractive route to add value to a sugarcane biorefinery, through utilization of the hemicellulosic fraction of sugarcane straw, whose availability is increasing in Brazil. Herein, supplementation of the sugarcane straw hemicellulosic hydrolyzate (xylose 57 g L-1) with maltose, sucrose, cellobiose or glycerol was proposed, and their effect as co-substrates on xylitol production by Candida guilliermondii FTI 20037 was studied. Sucrose (10 g L-1) and glycerol (0.7 g L-1) supplementation led to significant increase of 8.88% and 6.86% on xylose uptake rate (1.11 g L-1 h(-1) and 1.09 g L-1), respectively, but only with sucrose, significant increments of 12.88% and 8.69% on final xylitol concentration (36.11 g L-1) and volumetric productivity (0.75 g L-1 h(-1)), respectively, were achieved. Based on these results, utilization of complex sources of sucrose, derived from agro-industries, as nutritional supplementation for xylitol production can be proposed as a strategy for improving the yeast performance and reducing the cost of this bioprocess by replacing more expensive nutrients. (C) 2015 Elsevier Ltd. All rights reserved. (AU)

FAPESP's process: 13/27142-0 - Development of technology platform for incorporation of sugarcane straw in a biorefinery: xylitol and energy production
Grantee:Maria das Graças de Almeida Felipe
Support type: Regular Research Grants