Cab. Demaria et al., ARABINOGALACTAN AS A POTENTIAL FURFURAL PRECURSOR IN ROASTED COFFEE, International journal of food science & technology, 29(5), 1994, pp. 559-562
A fraction C-1 which was very rich in polysaccharides and did not cont
ain sucrose was isolated from high molecular weight water-soluble mate
rial obtained from green coffee. After roasting, furfural was identifi
ed in fraction C-1 by means of headspace-GC/MS analysis. Roasting of t
he fraction C-1 clearly affected the arabinogalactan promoting a high
loss of arabinose residues. We suggest that furfural found in fraction
C-1 originates mainly from arabinogalactan, which, together with sucr
ose appears to be the major furfural precursor in roasted coffee.