CIDCA   05380
CENTRO DE INVESTIGACION Y DESARROLLO EN CRIOTECNOLOGIA DE ALIMENTOS
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
―Binding of an extract of yerba mate (Ilex paraguensis) to high pressure partially gelatinized starch granules‖
Autor/es:
TEIXEIRA ALINE; DELADINO LORENA; NAVARRO ALBA; MOLINA-GARCÍA ANTONIO; MARTINO MIRIAM
Lugar:
Lisboa
Reunión:
Encuentro; 1st Iberian Meeting on Natural Bioactives Entrapment for the Food Industry; 2011
Resumen:
Ilex paraguensis aqueous extract (yerba mate) is an antioxidant-rich beverage widely consumed in South American
countries. Its antioxidant properties can be exported to other food products by binding or encapsulation in suitable
carrier matrices. Here we propose the modification of corn starch granules by application of high hydrostatic pressures
(HP) to improve its performance as carrier matrix of yerba mate extract. The aim of the present study was to
investigate the effect of high hydrostatic pressure in combination to extract concentration, incorporation before or after
HP treatment, and NaOH 0.1% presence during HP treatment, on the final yerba mate amount bound to modified
starch. Attention is given to starch both crystallinity and thermal gelatinization, in response to combined pressure and
yerba mate treatments. The results showed that higher amounts of yerba mate were incorporated in treated starches, in
comparison with native ones.