Thermodynamic analysis as a useful tool to study the physical properties of sweet‐potato starch films reinforced with alginate microparticles

Thermodynamic analysis is a useful instrument for understanding the state of adsorbed water molecules and their influence on the physical and chemical stability of packaging materials during their functioning. This study assesses the effect of alginate microparticles as reinforcement on the water‐ad...

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Bibliographic Details
Published in:Polymer composites 2021-07, Vol.42 (7), p.3380-3390
Main Authors: Acosta‐Domínguez, Laura, Salazar, Ricardo, Jiménez, Maribel, Azuara, Ebner
Format: Article
Language:English
Subjects:
Adsorption
alginate microparticles
Alginates
antiplasticization effect
Biopolymers
Criteria
Entropy
glycerol
integral entropy
Integrals
Microparticles
Photomicrographs
Physical properties
Potatoes
Stability analysis
sweet‐potato starch
Water activity
water adsorption
Water chemistry
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Summary:Thermodynamic analysis is a useful instrument for understanding the state of adsorbed water molecules and their influence on the physical and chemical stability of packaging materials during their functioning. This study assesses the effect of alginate microparticles as reinforcement on the water‐adsorption characteristics and physical properties of sweet‐potato starch biopolymer films. Glycerol was utilized as plasticizer. Then, physical stability was evaluated through minimum integral entropy criteria. The incorporation of alginate microparticles significantly decreased (p 
ISSN:0272-8397
1548-0569
DOI:10.1002/pc.26065