English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/90687
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
Citado 88 veces en Web of Knowledge®  |  Ver citas en Google académico
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar otros formatos: Exportar EndNote (RIS)Exportar EndNote (RIS)Exportar EndNote (RIS)
Título

Phytases and acid phosphatases in feed ingredients

Autor Viveros, Agustín; Centeno, Carmen ; Brenes, Agustín ; Lozano, Ana; Canales, Rosa
Palabras clave Phytate
Phosphorus
Acid phosphatase
Phytase
Feedstuffs
Fecha de publicación 2000
EditorAmerican Chemical Society
Citación Journal of Agricultural and Food Chemistry 48: 4009 (2000)
ResumenA total of 183 samples representing 24 feedstuffs were analyzed for total phosphorus, phytate phosphorus content, phytase (Phy), and acid phosphatase (AcPh) activities with the objective to predict the capacity to hydrolyze phytic acid and to contribute to formulating environmentally adequate diets for monogastric animals. Of the cereals and cereal byproducts analyzed, only rye (5147 U kg-1; 21 955 U g-1), wheat (1637 U kg-1; 10 252 U g-1), rye bran (7339 U kg-1; 56 722 U g-1), and wheat bran (4624 U kg-1; 14 106 U g-1) were rich in Phy and AcPh activities. Legume seeds and oilseeds contained negligible Phy activity and a moderate amount of AcPh activity, except for kidney bean (33 433 U g-1) and full-fat linseed meal (13 263 U g-1). On the other hand, a significant linear regression between phytate phosphorus (y) and total phosphorus (x) was observed in cereal byproducts (R2 ) 0.95; y ) 0.8458x - 0.0367; P < 0.001) and oil seeds (R2 ) 0.95; y ) 0.945x - 0.20; P < 0.001). Phy and AcPh were positively correlated with respect to phytate phosphorus in cereals, cereal byproducts, and other byproducts and negatively correlated in legume seeds and oilseeds. Except for cereals, the highest correlation between enzyme activities and phytate phosphorus was found for phytase. It is not possible to predict Phy and AcPh activities from phytate phosphorus content by linear and quadratic regressions. Finally, only highly significant and positive correlation was found between Phy and AcPh activities for cereals, cereal byproducts, and oilseeds.
URI http://hdl.handle.net/10261/90687
DOI10.1021/jf991126m
Identificadoresdoi: 10.1021/jf991126m
issn: 0021-8561
Aparece en las colecciones: (INB) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
accesoRestringido.pdf15,38 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 



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