CHARACTERIZATION OF BENZENE-ETHANOL EXTRACTIVES SOLUBLE IN ACETONE FROM SUGARCANE BAGASSE BY GAS CHROMATOGRAPHY – MASS SPECTROMETER

Abstract

The extractives separated from sugarcane bagasse with a mixture of ethanol:benzene (1:2) were analyzed in a GC-17A/MS-QP5050 (Shimadzu). Hernández and others (2012) carried out a qualitative and quantitative determination of such extractives, with a cautious percentage of confidence. This confidence in the results was solved calculating the index of retention kovats that allows us to corroborate the accuracy of the identification of a certain molecule. The studied samples correspond to the integral bagasse, desmedullated and pre-hydrolysated. Among 98-99% of the separate compounds they were identified by their retention time, the molecular fragments of their spectrum of mass, and for the index of retention kovats, all were compared with their data reported in the different available libraries.