Tailoring the morphology and properties of starch aerogels and cryogels via starch source and process parameter - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Carbohydrate Polymers Année : 2020

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

Résumé

Porous starch materials with various morphology and properties were made via starch dissolution, retrogradation and drying either with supercritical CO2 (“aerogels”) or lyophilisation (“cryogels”). Their properties were correlated with the rheological response of retrograded starch gels and crystallinity of aerogels and cryogels. All starch cryogels possess very low density (0.07 – 0.16 g/cm3), very large macropores and low specific surface area (around 3–13 m2/g). Their morphology is mainly the replica of sublimated ice crystals. The properties of starch aerogels strongly depend on starch source: the lowest density (around 0.1 g/cm3) and highest specific surface area (170–250 m2/g) was recorded for pea starch aerogels and the highest density (0.3–0.6 g/cm3) and lowest specific surface area (7–90 m2/g) for waxy maize starch aerogels. The morphology and properties of starch aerogels are interpreted by amylose and amylopectin evolution during retrogradation.
Fichier principal
Vignette du fichier
Tailoring the morphology and properties of starch aerogels and cryogels via starch source and process parameter.pdf (1.49 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-03100409 , version 1 (22-03-2023)

Identifiants

  • HAL Id : hal-03100409 , version 1

Citer

Fangxin Zou, Tatiana Budtova. Tailoring the morphology and properties of starch aerogels and cryogels via starch source and process parameter. Carbohydrate Polymers, 2020, 255. ⟨hal-03100409⟩
32 Consultations
19 Téléchargements

Partager

Gmail Facebook X LinkedIn More