High-performance liquid chromatography/chemical ionization mass spectrometric analysis of pyrolysates of amylose and cellulose

The facts and hypotheses relating to the phenomenological model of cellulose pyrolysis

“…[5,46,[65][66][67]) in the pyrolysate would be impossible. The main series in mass spectra correspond to anhydro(oligo)saccharides with both intact ends, such as cellobiosan, cellotriosan, etc.…”

“…The main series in mass spectra correspond to anhydro(oligo)saccharides with both intact ends, such as cellobiosan, cellotriosan, etc. However, the analysis of the bensoylated anhydrosaccharides allows detecting the presence of ring-cleavage products in the spectra as well [65].…”

Kinetic analysis of the thermal decomposition of cellulose: The main step of mass loss

“…Shafizadeh et al [39,40] have shown that the yield of levoglucosan from pure cellulose can reach 60%. Transglycosylation additionally leads to the dimer and the trimer, namely, to cellobiosan [41] and cellotriosan [42], respectively. In particular, cellobiosan is derived with the yield of up to 6-15% [41].…”

Laboratory simulations of the transformation of peas as a result of heating: the change of the molecular composition by DTMS

“…Amylose has been studied extensively using direct temperature-resolved mass spectrometry (DTMS) under chemical ionization conditions and the typical mass peaks and their structure are well known [5,6]. The pyrolysis and carbonization of cellulose, which has a strong structural resemblance to amylose, has been studied extensively by DTMS, Py-GC-MS, Fourier-transform infrared (FTIR) and NMR ( [7][8][9] and references therein). These studies provided detailed information on the processes that lead to the aromatized residual materials.…”