Impact of sample aging on freeze-thaw stability of oil-in-water emulsions prepared with soy protein isolates
The freeze-thaw stability of oil-in-water emulsions prepared with unheated and heated aqueous dispersions of fresh and stored soy protein isolates was evaluated in the absence and presence of glucose or sorbitol (0.75-15.0% w/w). Sample aging had a negative impact of freeze-thaw stability. The cryop...
| Autores: | , , |
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| Formato: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2016 |
| País: | Argentina |
| Recursos: | Consejo Nacional de Investigaciones Científicas y Técnicas |
| Repositorio: | CONICET Digital (CONICET) |
| Idioma: | inglés |
| OAI Identifier: | oai:ri.conicet.gov.ar:11336/43700 |
| Acesso em linha: | http://hdl.handle.net/11336/43700 |
| Access Level: | acceso abierto |
| Palavra-chave: | Cryoprotectant Freeze-Thaw Stability O/W Emulsions Soy Protein Isolates Sample Aging https://purl.org/becyt/ford/2.11 https://purl.org/becyt/ford/2 |
| Resumo: | The freeze-thaw stability of oil-in-water emulsions prepared with unheated and heated aqueous dispersions of fresh and stored soy protein isolates was evaluated in the absence and presence of glucose or sorbitol (0.75-15.0% w/w). Sample aging had a negative impact of freeze-thaw stability. The cryoprotectant addition enhanced the freeze-thaw stability, but at low concentrations emulsions prepared with unheated soy protein isolates showed better response to freeze-thawing. Nevertheless, at the highest cryoprotectant concentration, a total stabilization was evidenced for all emulsions. The results of this article indicated that the cryoprotectants act on proteins at interfacial level. |
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