期刊
CARBOHYDRATE POLYMERS
卷 270, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2021.117819
关键词
Arabinoxylan; beta-Glucan; Multilayer film; Mechanical property; Wheat cell wall; Water mobility
资金
- National key R&D Program of China [2019YFD1002300]
- Natural Science Foundation of China [31600153]
The study evaluated the properties of alternate arabinoxylan (AX)/(1 -> 3) (1 -> 4)-beta-D-glucan (BG) multilayer films extracted from wheat at different growth stages. It was found that low substitution rate AX films have better water-binding capacity, while films with a high substitution rate have higher water molecule mobility. Overall, the study provides insights into the physicochemical properties and water-regulation effects of wheat cell wall.
Herein, we evaluated the properties of alternate arabinoxylan (AX)/(1 -> 3) (1 -> 4)-beta-D-glucan (BG) multilayer films. AX was extracted from wheat at three growth stages and single-component and alternate overlapping multilayer films were prepared. The physical properties, water diffusion rate, and water mobility of multilayer films during water absorption and desorption were studied. There were significant differences in the AX content and arabinose-to-xylose ratio at different growth stages. The LAX/BG multilayer films showed excellent thermal stability and mechanical properties with an increase in the relative humidity. The AX multilayer films with a low substitution rate showed a better water-binding capacity, whereas water molecules in films with a high substitution rate showed higher mobility. Therefore, a low substitution rate AX and AX/BG composite structure can improve the thermodynamic properties of multilayer films, but limit water mobility. We provide new insights on the physicochemical properties and water-regulation effects of wheat cell wall.
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