Péptidos y proteínas de la leche con propiedades funcionales
Resumen
La fracción proteica de la leche contiene un gran número de compuestos biológicamente activos. Además de lasproteínas de la leche, caseínas y proteínas del suero lácteo, existen también pequeñas cantidades de otras proteínasy péptidos. Estos péptidos, que son inactivos dentro de la secuencia de la proteína nativa, pueden ser liberados porhidrólisis enzimática, por ejemplo, durante la digestión gastrointestinal o durante el procesado del alimento. Estospéptidos bioactivos procedentes de proteínas lácteas presentan una actividad moduladora de numerosos procesosmetabólicos del organismo. Asimismo, las proteínas del suero lácteo representan una mezcla variada de proteínassecretadas, tales como á-lactoalbúmina, â-lactoglobulina, lactoferrina, lactoperoxidasa, inmunoglobulinas,glicomacropéptido y una gran cantidad de factores de crecimiento. Estas proteínas tienen una serie de efectosbiológicos, que van desde un efecto anticancerígenos hasta efectos en la función digestiva.Citas
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