Patent ID: 7910143

Claim:
A process for extraction of soluble dietary fibre complex from oat and barley grains using an enzymatic hydrolysis treatment, wherein non-heat treated grain is milled and endosperm depleted fractions thereof being rich in β-glucans are recombined, without any further heat treatment; and dispersed in water; and subjected to enzymatic treatment with starch degrading enzymes in a sequence utilizing first α-amylase and then amyloglucosidase enzyme, said starch degrading enzymes being substantially cleaned of β-glucanase side activity, said endosperm depleted fractions, water and starch degrading enzymes forming a hydrolysate mixture, said enzymatic treatment is followed by an optional step of enzyme inactivation by wet heat treatment, whereby the hydrolysate mixture forming spontaneously at least one viscous, aqueous top layer upon a second aqueous layer, is subjected to a separation process to isolate said at least one viscous, aqueous top layer comprising soluble dietary fibre complex, containing more than 20% β-glucan on a dry matter basis.