Advanced search
Start date
Betweenand
Related content
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Sugars and char formation on subcritical water hydrolysis of sugarcane straw

Full text
Author(s):
Lachos-Perez, D. ; Tompsett, G. A. ; Guerra, P. ; Timko, M. T. ; Rostagno, M. A. ; Martinez, Julian ; Forster-Carneiro, T.
Total Authors: 7
Document type: Journal article
Source: Bioresource Technology; v. 243, p. 1069-1077, NOV 2017.
Web of Science Citations: 13
Abstract

Subcritical water has potential as an environmentally friendly solvent for applications including hydrolysis, liquefaction, extraction, and carbonization. Here, we report hydrolysis of sugarcane straw, an abundant byproduct of sugar production, in a semi-continuous reactor at reaction temperatures ranging from 190 to 260 degrees C and at operating pressures of 9 and 16 MPa. The target hydrolysis products were total reducing sugars. The main products of sugarcane straw hydrolysis were glucose, xylose, arabinose, and galactose in addition to 5-hydroxymethylfurfural and furfural as minor byproducts. Fourier transform infrared spectroscopy and thermogravimetric analysis provided additional information on the surface and bulk composition of the residual biomass. Char was present on samples treated at temperatures equal to and greater than 190 degrees C. Samples treated at 260 degrees C contained approximately 20 wt% char, yet retained substantial hemicellulose and cellulose content. Hydrolysis temperature of 200 degrees C provided the greatest TRS yield while minimizing char formation. (C) 2017 Elsevier Ltd. All rights reserved. (AU)

FAPESP's process: 15/11932-7 - Integration of high pressure extraction to separation operations for the recovery of by-products from fruit processing
Grantee:Julian Martínez
Support Opportunities: Regular Research Grants
FAPESP's process: 13/04304-4 - Development of integrated systems for the analysis of bioactive compounds in natural products employing supercritical technology
Grantee:Maurício Ariel Rostagno
Support Opportunities: Research Grants - Young Investigators Grants
FAPESP's process: 11/19817-1 - Biorefinery in agricultural and food industry: recycling waste for production of new chemicals componds and biohydrogen
Grantee:Tânia Forster Carneiro
Support Opportunities: Program for Research on Bioenergy (BIOEN) - Young Investigators Grants