Preparation of self-reinforced starch films for use as hard capsule material.
Int J Biol Macromol
; 189: 715-721, 2021 Oct 31.
Article
em En
| MEDLINE
| ID: mdl-34464639
ABSTRACT
A strategy for preparation of self-reinforced starch films for use as hard capsule material is introduced. In this study, the hydroxypropylated-crosslinked potato starch (HCPS) was prepared and used to reinforce the hydroxypropylated-hydrolyzed potato starch (HHPS) films. The paste properties of starch samples and the morphology of starch films were investigated by a rapid visco analyzer (RVA) and scanning electron microscope (SEM), respectively. It was found that the matrix/particle interface was greatly improved after the hydroxypropylation of crosslinked starch. The strain and toughness of the starch composite films were increased by about 30% and 50% after addition of 10 wt% HCPS particles, respectively. In addition, the self-reinforced starch film also had good oxygen barrier property, with its oxygen permeating coefficient (OPC) at 5.09 × 10-12 cm3·cm/cm2·s·cmHg (50% RH). The fragmentation rate of starch capsules has also decreased, indicating it is an alternative material for the preparation of hard capsules.
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1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Amido
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Cápsulas
Idioma:
En
Revista:
Int J Biol Macromol
Ano de publicação:
2021
Tipo de documento:
Article
País de afiliação:
China