64265-26-5Relevant articles and documents
PROCESS FOR THE TRANSFORMATION OF LIGNOCELLULOSIC BIOMASS INTO MONO- OR POLY-OXYGENATED MOLECULES
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Paragraph 0122-0126, (2016/05/09)
The invention concerns a process for the transformation of lignocellulosic biomass or cellulose into mono- or poly-oxygenated compounds, in which the lignocellulosic biomass or the cellulose is brought into simultaneous contact with a catalytic system comprising a combination of one or more homogeneous catalysts and one or more heterogeneous catalysts, in the same reaction chamber, in the presence of at least one solvent, said solvent being water alone or as a mixture with at least one other solvent, in a reducing atmosphere, and at a temperature in the range 80° C. to 250° C. and at a pressure in the range 0.5 MPa to 20 MPa.
Kinetics and thermal degradation of the fructose-methionine Amadori intermediates. GC-MS/SPECMA data bank identification of volatile aroma compounds
Vernin, Gaston,Metzger, Jacques,Boniface, Christian,Murello, Marie-Helene,Siouffi, Antoine,et al.
, p. 15 - 30 (2007/10/02)
Fructose-methionine Amadori intermediates, prepared from D-glucose and L-methionine, were purified by semi-preparative HPLC.Structural elucidation was achieved by 13C-NMR and mass spectrometry in the FAB+ and FAB- modes.Constant rates of formation of glucosylamine and the Amadori intermediate, and their thermal degradation into reductones and methionine as well as into diglucosylamine, were observed.Thermal degradation of the Amadori intermediate gives not only the well-known degradation products of the sugar moiety and methional (from the Strecker degradation of methionine), but also several heterocyclic compounds (pyridines, pyrazines, pyrroles, and furans).Some of them contain a methylthiopropyl group in their side chain.These new compounds were identified by the fragmentation rules and Kovats additive properties.Out of the 80 compounds isolated, ca. 70 were identified.
