2024-03-29T14:58:08Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/906872021-12-28T12:25:13Zcom_10261_77180com_10261_2com_10261_70col_10261_77181col_10261_323
DIGITAL.CSIC
author
Viveros, Agustín
author
Centeno, Carmen
author
Brenes, Agustín
author
Canales, Rosa
author
Lozano, Ana
2014-02-11T11:34:23Z
2014-02-11T11:34:23Z
2000
Journal of Agricultural and Food Chemistry 48(9): 4009-4013 (2000)
http://hdl.handle.net/10261/90687
10.1021/jf991126m
A 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.
eng
closedAccess
Phytate
Phosphorus
Acid phosphatase
Phytase
Feedstuffs
Phytase and acid phosphatase activities in plant feedstuffs
artículo
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URL
https://digital.csic.es/bitstream/10261/90687/1/accesoRestringido.pdf
File
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accesoRestringido.pdf
URL
https://digital.csic.es/bitstream/10261/90687/5/accesoRestringido.pdf.txt
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text/plain
accesoRestringido.pdf.txt