Characterization of konjac glucomannan-ethyl cellulose film formation via microscopy

International Journal of Biological Macromolecules
Man XiaoFatang Jiang

Abstract

Konjac glucomannan-ethyl cellulose (KGM-EC, 7:3, w/w) blended film shows good mechanical and moisture resistance properties. To better understand the basis for the KGM-EC film formation, optical microscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM), and atomic force microscopy (AFM) were used to observe the formation of the film from emulsion. Optical microscopy images showed that EC oil droplets were homogeneously dispersed in KGM water phase without obviously coalescence throughout the entire drying process. SEM images showed the surface and cross-sectional structures of samples maintained continuous and homogeneous appearance from the emulsion to dried film. AFM images indicated that KGM molecules entangled EC molecules in the emulsion. Interactions between KGM and EC improved the stability of KGM-EC emulsion, and contributed to uniformed structures of film formation. Based on these output information, a schematic model was built to elucidate KGM-EC film-forming process.

References

Sep 21, 2000·Advances in Colloid and Interface Science·P A StewardM C Wilkinson
Jul 3, 2003·European Journal of Pharmaceutics and Biopharmaceutics : Official Journal of Arbeitsgemeinschaft Für Pharmazeutische Verfahrenstechnik E.V·Eva MelzerRolf Daniels
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Feb 11, 2014·Carbohydrate Polymers·Naimeh KhazaeiMohammad Jouki

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Citations

Jul 10, 2016·International Journal of Biological Macromolecules·Xuewen NiFatang Jiang
Jul 5, 2016·International Journal of Biological Macromolecules·Jie CaoCanhui Lu
Nov 19, 2019·International Journal of Biological Macromolecules·Ben NiuHaiyan Gao
May 5, 2018·International Journal of Biological Macromolecules·Ujwaldip Vijay Deore, Hitendra Shaligram Mahajan

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