Products from the thermal degradation of some naturally occurring materials

The pyrolytic formation of formaldehyde from sugars and tobacco

“…[8][9][10][11][12][13][14][15][16][17]. They concentrated on decarboxylation, dehydration initially to dipeptides, homolysis, intramolecular loss of water to yield cyclic products and formation of nitrogen-containing polynuclear aromatic compounds and polynuclear aromatic hydro- carbons at longer residence times.…”

“…Appl. Pyrolysis 77 (2006) [12][13][14][15][16][17][18][19][20][21] formaldehyde to form a complex, further suppressing the yield of formaldehyde. 5.…”

Volatile Components of Ripe Tomatoes and Their Juices, Purées and Pastes

“…19) Indole is known to be formed on heating of tryptophan 20 ) and protein. 21 ) 2) Basic fraction. Figure 2(A) shows a gas chromatogram of the basic fraction of Wasedaruma fresh tomato fruits.…”

Theoretical study on the unimolecular decomposition of proline

“…Carbocyclic groups often result from the rupture of ether linkages in cellulose and lignin; common structural entities in biomass. Proline is a major amino acids in various types of biomass such as tobacco [7]. Accordingly, pyrolysis of proline has been extensively studied [8].…”