Emulsified blend film based on konjac glucomannan/carrageenan/ camellia oil: Physical, structural, and water barrier properties. (1st January 2021)

• Record Type: Journal Article
• Authors: Zhou, Xi; Zong, Xinxiang; Wang, Shanglong; Yin, Cong; Gao, Xueqin; Xiong, Guoyuan; Xu, Xinglian; Qi, Jun; Mei, Lin
• Is Part Of: Carbohydrate polymers. Volume 251(2021)
• Publication Date: 2021-01-01
• Subjects: Konjac glucomannan (PubChem SID: 135312923) -- Carrageenan (PubChem CID:11966249) -- Tween 80 (PubChem CID: 5284448) -- Glycerol (PubChem CID:753) -- Calcium nitrate (PubChem CID: 24963) -- Sodium chloride (PubChem CID: 5234) -- Magnesium nitrate (PubChem CID: 25212) -- Potassium nitrate (PubChem CID: 24434) -- Magnesium chloride (PubChem CID: 5360315) -- Lithium chloride (PubChem CID: 433294); konjac glucomannan -- kappa-carrageenan -- camellia oil -- characterization -- hydrophobicity -- water vapor adsorption; Polysaccharides -- Periodicals; Polysaccharides -- Periodicals; Polysaccharides -- Périodiques; Electronic journals; 547.78
• DOI: 10.1016/j.carbpol.2020.117100
• Languages: English
• ISSNs: 0144-8617

Abstract

Graphical abstract: Highlights: The addition of camellia oil (CO) improved the physical properties of KGM-KC films. The hydrophobicity of KGM-KC films was improved due to the CO addition. The KGM-KC film incorporated with camellia oil showed good water barrier properties. Intermolecular interaction between KGM and KC was not affected by CO addition. Abstract: The objective of this study was to develop a new hydrophobic film based on konjac glucomannan and kappa-carrageenan (KGM-KC) incorporating camellia oil (CO) (2, 4, and 6 %). CO was directly emulsified as a dispersed phase into KGM-KC matrix. The physical, structural, and water barrier properties of the film were studied. The results of Fourier transform infrared and scanning electron microscopy suggested that CO was successfully distributed in KGM-KC matrix by emulsification. Contact angle of the film indicated that addition of CO increased the hydrophobicity and water-resistance properties of film, which corresponding to the moisture content, total soluble mass, water vapor permeability, water vapor adsorption kinetics and water vapor adsorption isotherms. Addition of CO by emulsification improved thermal stability of film, optical properties, and mechanical properties. In conclusion, the incorporation of CO by emulsification is an effective and promising pathway to improve the properties of polysaccharide-based film.