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Leakage of phosphorus and phytic acid from imbibing seeds and grains

Published online by Cambridge University Press:  19 September 2008

M. Marcia West ,
Irene Ockenden  and
John N. A. Lott
M. Marcia West
Affiliation:
Department of Biology, McMaster University, Hamilton, Ontario L8S 4K1, Canada
Irene Ockenden
Affiliation:
Department of Biology, McMaster University, Hamilton, Ontario L8S 4K1, Canada
John N. A. Lott*
Affiliation:
Department of Biology, McMaster University, Hamilton, Ontario L8S 4K1, Canada
*
* Correspondence
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Abstract

Inorganic P, total P and phytic acid-P leakage from imbibing whole soybean, bean, and pea seeds, as well as whole maize and barley grains were measured. The amounts of P and phytic acid leaked during a 6-h soaking period varied for the five species. Soybeans leaked the most P and phytic acid of the species examined. Peas, beans and barley leaked little or no phytic acid. Based on reported levels of total P and phytic acid in the dry seeds/grains that were studied, total P leakage ranged from 0.5 to 1.2%, while phytic acid leakage ranged from 0.01 to 0.5%. No relationship was found between initial levels of total P or phytic acid in the dry seeds/grains and the amount of total P or phytic acid leaked by the imbibed seed/grain. Similarly, the amounts of phytic acid leaked by the seeds/grains of this study did not appear to be related to the water solubility of the phytic acid in the dry seeds/grains.

Keywords

Grainsimbibitioninorganic Pleakagephytic acidseedstotal P
Type
Research Papers
Information
Seed Science Research , Volume 4 , Issue 2 , June 1994 , pp. 97 - 102
Copyright
Copyright © Cambridge University Press 1994

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