728 15 Cereals and Cereal Products
Fig. 15.44.1–5 Light microscopy.1a: Individual flour particles in water.1b: Flour particles, slightly extended by
moving the cover glass.1c: Flour particles, highly extended; 2 : Extended protein strands with one end adhering
to the glass. 3 : Network of protein strands after two-dimensional extension of a flour particle. 4 : Protein film
(arrows) between bent protein strands. 5 : Flour particles stretched on the water surface. Protein films between
bent protein strands (arrows).6–17, 56–57 Scanning electron microscopy. 6: Flour particle unstretched, holes from
enzymatically removed starch. 7 : Flour particle, extended (starch removed). 8 : Spread preparation ( 5 ) washed with
60% ethanol.