Effect of different types and concentrations of emulsifier on the characteristics of kappa-carrageenan films
κ-Carrageenan films derived from Euchema cottoni containing different types and concentrations of emulsifier were developed. Film formation without the addition of emulsifier was used as a control. The physical, mechanical, optical and microstructural properties of these films were determined. Diffe...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2018
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| Online Access: | http://psasir.upm.edu.my/id/eprint/72398/1/Effect%20of%20different%20types%20and%20concentrations%20of%20emulsifier%20on%20the%20characteristics%20of%20kappa-carrageenan%20films.pdf http://psasir.upm.edu.my/id/eprint/72398/ https://www.sciencedirect.com/science/article/pii/S0141813018301405 |
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| Summary: | κ-Carrageenan films derived from Euchema cottoni containing different types and concentrations of emulsifier were developed. Film formation without the addition of emulsifier was used as a control. The physical, mechanical, optical and microstructural properties of these films were determined. Different types of emulsifiers (Tween 20, Tween 40 and Tween 80) exerted significant effects (P ≤ 0.05) on the thickness, moisture content and opacity of the films. Additionally, Tween 20 and Tween 40 with concentrations from 0.1 to 0.5% (v/v) significantly (P ≤ 0.05) improved the tensile strength of the films, ranging from 7.35 to 13.83 MPa. The water vapor permeability of the carrageenan films was significantly (P ≤ 0.05) affected by both factors. Increasing the emulsifier concentration also caused an increment in the number of lipid droplets contributing to a smooth surface. Therefore, this study suggests that different types and concentrations of emulsifiers play essential roles in determining the physical properties of carrageenan films. |
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