The aim of this work was to analyze physicochemical parameters of wastes from A. sisalana by termogravimetry (TG) and spectrophotometric scanning (SC). Wastes exhibited similar chemical profiles, in that picks of bagasse were observed at 669, 307 and 271 nm to bagasse and 671 nm, and those of juice at 307 and 271 nm. The decomposition process involved several events of mass loss, and the first stage, occurred in the temperature range of 36–100°C, was due to volatile compounds, mainly water. The initial moisture removals from the herbal grug and the lyophilized juice were 10.6% at 98°C and 7.2% at 96°C, respectively. Mass loss associated with thermal decomposition of fructans, aromatic and stable moieties of lignin and carbonate-rich residue (ash) were observed.
Thermogravimetric analysis and spectrophotometric scanning of wastes of Agave sisalana
CONVERTI, ATTILIO;
2013-01-01
Abstract
The aim of this work was to analyze physicochemical parameters of wastes from A. sisalana by termogravimetry (TG) and spectrophotometric scanning (SC). Wastes exhibited similar chemical profiles, in that picks of bagasse were observed at 669, 307 and 271 nm to bagasse and 671 nm, and those of juice at 307 and 271 nm. The decomposition process involved several events of mass loss, and the first stage, occurred in the temperature range of 36–100°C, was due to volatile compounds, mainly water. The initial moisture removals from the herbal grug and the lyophilized juice were 10.6% at 98°C and 7.2% at 96°C, respectively. Mass loss associated with thermal decomposition of fructans, aromatic and stable moieties of lignin and carbonate-rich residue (ash) were observed.
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