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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.)

Atmospheric Pressure Plasma Pretreatment of Sugarcane Bagasse: The Influence of Moisture in the Ozonation Process

Full text
Author(s):
Souza-Correa, J. A. [1] ; Oliveira, C. [1] ; Wolf, L. D. [1] ; Nascimento, V. M. [1] ; Rocha, G. J. M. [1] ; Amorim, J. [1]
Total Authors: 6
Affiliation:
[1] Lab Nacl Ciencia & Tecnol Bioetanol CTBE CNPEM, BR-13083970 Campinas, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: Applied Biochemistry and Biotechnology; v. 171, n. 1, p. 104-116, SEP 2013.
Web of Science Citations: 16
Abstract

Sugarcane bagasse samples were pretreated with ozone via atmospheric O-2 pressure plasma. A delignification efficiency of approximately 80 % was observed within 6 h of treatment. Some hemicelluloses were removed, and the cellulose was not affected by ozonolysis. The quantity of moisture in the bagasse had a large influence on delignification and saccharification after ozonation pretreatment of the bagasse, where 50 % moisture content was found to be best for delignification (65 % of the cellulose was converted into glucose). Optical absorption spectroscopy was applied to determine ozone concentrations in real time. The ozone consumption as a function of the delignification process revealed two main reaction phases, as the ozone molecules cleave the strong carbon-carbon bonds of aromatic rings more slowly than the weak carbon-carbon bonds of aliphatic chains. (AU)

FAPESP's process: 08/58034-0 - Processing of sugarcane cellulose employing atmospheric pressure plasmas
Grantee:Marco Aurelio Pinheiro Lima
Support Opportunities: Program for Research on Bioenergy (BIOEN) - Thematic Grants