Tailoring the morphology and properties of starch aerogels and cryogels via starch source and process parameter

Porous starch materials with various morphology and properties were made via dissolution, retrogradation drying either supercritical CO2 (“aerogels”) or lyophilisation (“cryogels”). Their correlated the rheological response of retrograded gels crystallinity aerogels cryogels. All cryogels possess very low density (0.07 – 0.16 g/cm3), large macropores specific surface area (around 3–13 m2/g). is mainly replica sublimated ice crystals. The strongly depend on source: lowest 0.1 g/cm3) highest (170–250 m2/g) was recorded for pea (0.3–0.6 (7–90 waxy maize aerogels. are interpreted by amylose amylopectin evolution during retrogradation.