Gelatin-based films containing hydrophobic plasticizers and saponin from Yucca schidigera as the surfactant
Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
---|---|
Data(s) |
19/10/2012
19/10/2012
2010
|
Resumo |
The aim of this study was to evaluate the incorporation of hydrophobic plasticizers (acetyltributyl citrate - ATB, tributyl citrate - TB and acetyltriethyl citrate - ATC) in a matrix of gelatin, using the saponin extracted from Yucca schidigera (yucca) as emulsifier, in the production of biodegradable emulsified films using the casting technique. High levels of hydrophobic plasticizers were incorporated, reaching up to 75% of plasticizer in relation to the protein (w/w) for ATB and TB, and up to 60% for ATC. The minimum values of water vapor permeability were 0.08, 0.07 and 0.06 g mm m(-2) h(-1) kPa(-1) for ATB, TB and ATC respectively, with no significant differences (p > 0.05). The water solubility of the films ranged from 21% to 59.5%. Although the WVP decreased, both scanning electron microscopy and laser scanning confocal microscopy indicated that the incorporation of the hydrophobic plasticizers did not occur homogeneously in the film matrix. (C) 2010 Elsevier Ltd. All rights reserved. |
Identificador |
FOOD RESEARCH INTERNATIONAL, v.43, n.6, p.1710-1718, 2010 0963-9969 http://producao.usp.br/handle/BDPI/26815 10.1016/j.foodres.2010.05.013 |
Idioma(s) |
eng |
Publicador |
ELSEVIER SCIENCE BV |
Relação |
Food Research International |
Direitos |
restrictedAccess Copyright ELSEVIER SCIENCE BV |
Palavras-Chave | #Emulsified films #Gelatin #Citrate esters #Saponin #Yucca schidigera #WATER-VAPOR PERMEABILITY #HYDROXYPROPYL METHYLCELLULOSE FILMS #SODIUM CASEINATE FILMS #ACID-BEESWAX MIXTURES #EDIBLE FILMS #PHYSICAL-PROPERTIES #BARRIER PROPERTIES #SKIN GELATIN #FATTY-ACIDS #MECHANICAL-PROPERTIES #Food Science & Technology |
Tipo |
article original article publishedVersion |