English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/26227
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Effects of enzymatic modification of soybean protein on the pasting and rheological profile of starch-protein systems

AutorRibotta, Pablo D.; Rosell, Cristina M.
Palabras claveEnzymatic modification
Soybean protein
Fecha de publicación18-jun-2010
CitaciónStarch - Starke 62 (7): 373-383 (2010)
ResumenReformulation of traditional food systems to introduce new ingredients may change their structure and perceived texture. Interactions between proteins and starch during processing can markedly influence starch gel network structure and rheological profile. The present work aimed to study the effects of soybean protein and the products of enzymatic modification on the pasting and rheological profile of corn and cassava starch. The behavior of those protein-enriched gels during storage was also assessed. Soybean protein isolate (SPI) was incubated with endopeptidase (AL) or food grade microbial transglutaminase (TG). Pasting and rheological behavior, water retention capacity, and structure of protein- and hydrolyzed protein-starch gels were analyzed. Protein incorporation increased the viscosity of starch suspension during and after heating. SPI-modified proteins increased peak viscosity. Only the structural modifications brought by TG on SPI increased the final viscosity during starch pasting and the storage modulus (G). This modulus (G) of the gelled systems decreased with the addition of AL-treated protein isolate. Light and fluorescence microscopy showed that SPI formed a continuous phase, like a network, in the gelled system. Different network structures and rheological properties can be obtained when SPI are modified by protease and TG enzymes, which may be very useful for designing new food products.
Descripción11 pages, 7 figures, 2 tables.-- Printed version published in July 2010.-- The definitive version is available at www3.interscience.wiley.com
Versión del editorhttp://dx.doi.org/10.1002/star.200900259
Aparece en las colecciones: (IATA) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
Starch-Effects of enzymatic modification of soybean protein.pdf188,85 kBAdobe PDFVista previa
Mostrar el registro completo

Artículos relacionados:

NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.