Sorption and diffusion of water vapour on edible films

Two types of films consisting of sodium salt of carboxymethyl cellulose (NaCMC) and hydroxypropyl cellulose (HPC) as film forming materials and glycerin as plasticizer were prepared, characterized and their water vapour sorption properties were determined. The water sorption isotherms of the films w...

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Veröffentlicht in:	Journal of thermal analysis and calorimetry 2008-12, Vol.94 (3), p.683-686
Hauptverfasser:	BERKUN, D, BALKOSE, D, TIHMINLIOGLU, F, ALTINKAYA, S. A
Format:	Artikel
Sprache:	eng
Schlagworte:	Analytical Chemistry Application fields Applied sciences Biological and medical sciences Chemistry Chemistry and Materials Science Exact sciences and technology Food industries Fundamental and applied biological sciences. Psychology General aspects Handling, storage, packaging, transport Inorganic Chemistry Measurement Science and Instrumentation Physical Chemistry Polymer industry, paints, wood Polymer Sciences Technology of polymers
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Zusammenfassung:	Two types of films consisting of sodium salt of carboxymethyl cellulose (NaCMC) and hydroxypropyl cellulose (HPC) as film forming materials and glycerin as plasticizer were prepared, characterized and their water vapour sorption properties were determined. The water sorption isotherms of the films were measured using a magnetic suspension balance. Results show that diffusion of water vapour in NaCMC based film is faster than that in HPC based films, due to the heterogeneous structure and larger pore dimensions of the NaCMC films.
ISSN:	1388-6150 1588-2926 1572-8943
DOI:	10.1007/s10973-008-9354-y