Título:
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Thermodynamic analysis of water vapour sorption of edible starch based films
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Autores:
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BERTUZZI, M. A. ;
ARMADA, M. ;
GOTTIFREDI, J. C.
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Tipo de documento:
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texto impreso
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ISBN/ISSN/DL:
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31426
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Nota general:
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ISBN:
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Langues:
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Inglés
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Clasificación:
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ABSORCIÓN DE AGUA
ALMIDÓN
FILM
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Resumen:
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Moisture sorption isotherms of high amylose corn starch (HACS) films at 5, 25, 35 and 45 oC within an approximate water activity (aw)range of 0.11–0.85 were obtained using a static gravimetric method. HACS films fitted a type III BET model at all temperatures studied. Water sorption process in high amylose based films was exothermic within the range of water activities investigated. There was a continuous decrease of the affinity between film sorbed structure with moisture as water content increased.
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Nota de contenido:
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En: Food Science and Technology International 9 (2) 115-121 (2003)
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