In order to determine and compare content of dietary fibre in
different flake types, samples of commercially available corn, oat,
barley and rye flakes were analysed. Total dietary fibre content
in flakes varied in wide range from 4.7 to 20.8 g/100 g. Oat and
rye flakes were the richest sources of total dietary fibre content
(Table 1). Rye flakes also had the highest content of arabinoxylans,
fructans, cellulose, and resistant starch. b-Glucan fraction was a
major component of oat flakes (5.1 g/100 g) and barley flakes
(4.8 g/100 g). The content of b-glucan in oat and barley flakes reported
by Johansson et al. (2004) is similar to our results. Although
corn flakes are most popular and most frequently consumed breakfast
cereals, they had the lowest fibre content with resistant starch
and fructans as predominant fractions.