Low Phytic Acid 1 Mutation in Maize Modifies Density, Starch Properties, Cations, and Fiber Contents in the Seed

Landoni, M. and Badone, F.C. and Haman, N. and et al, . (2013) Low Phytic Acid 1 Mutation in Maize Modifies Density, Starch Properties, Cations, and Fiber Contents in the Seed. Journal of Agricultural and Food Chemistry, 61 (19). pp. 4622-4630.

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Abstract

Monogastric animals are unable to digest phytic acid, so it represents an antinutritional factor and also an environmental problem. One strategy to solve this problem is the utilization of low phytic acid (lpa) mutants that accumulate low levels of phytic P and high levels of free phosphate in the seeds; among the lpa maize mutants lpa1 exhibited the highest reduction of phytic acid in the seed. This study indicated that the low phytic acid mutations exerted pleiotropic effects not directly connected to the phytic acid pathway, such as on seed density, content of ions, and the antioxidant compounds present in the kernels. Furthermore some nutritional properties of the flour were altered by the lpa1 mutations, in particular lignin and protein content, while the starch does not seem to be modified as to the total amount and in the amylose/amylopectin ratio, but alterations were noticed in the structure and size of granules.

Item Type: Article
Uncontrolled Keywords: maize; phytic acid; starch; ions; storage proteins; lignin content
Author Affiliation: Dipartimento di Bioscienze, Università degli Studi di Milano, Via Celoria 26, 20133 Milano, Italy
Subjects: Postharvest Management > Food Technology
Divisions: Maize
Depositing User: Mr Siva Shankar
Date Deposited: 25 Jul 2013 03:44
Last Modified: 25 Jul 2013 03:44
Official URL: http://dx.doi.org/10.1021/jf400259h
URI: http://eprints.icrisat.ac.in/id/eprint/11257

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