did not influenced the content of
non-dissolved solids (ca. 131 g kgÀ1 of media) in comparison to
samples without pretreatment (Fig. 1c). Preliminary hydrolysis of
waste bread with Ceremix 6X MG caused reduction in non-dis-
solved particles by ca. 80 g kgÀ1 in comparison to control, micro-
waved and sonificated samples, while samples after separate
two-stage hydrolysis with a-amylase, glucoamylase and protease
(SHF) contained the lowest amount of non-dissolved solids among
others (ca. 30 g kgÀ1).