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http://repositoriodigital.ipn.mx/handle/123456789/10615
Título : | A Radioisotopic Study of the Entry of Calcium Ion into the Maize Kernel During Nixtamalization |
Autor : | Rodriguez, M. E. |
Palabras clave : | calcium diffusion |
Fecha de publicación : | 16-ene-2013 |
Editorial : | J. L. Fernández-Muñoz |
Descripción : | The entry of calcium ions from the nixtamalization solution into maize
kernels over time was followed in model experiments using radiolabeled
calcium ions, with autoradiographic evaluation of the kernels after different
cooking and steeping times. Calcium ions immediately entered the pericarp
and were rapidly fixed at the outer boundary of the endosperm,
especially at the external surface of the germ. Entry of calcium into the
endosperm occurred gradually after long steeping times, except in the case of broken kernels, for which massive invasion by calcium was observed.
After extended steeping times, a moderate amount of calcium-45 was
evident in the germ. Specific perforation of the outer layers of the grains
provided a defined route of facilitated entry of calcium into the endosperm.
No fundamental difference with respect to penetrability by calcium
ion was seen in a comparison between flint-type grains and grains containing
only floury endosperm. CICATA-IPN |
URI : | http://www.repositoriodigital.ipn.mx/handle/123456789/10615 |
Otros identificadores : | 8 0009-0352 http://hdl.handle.net/123456789/90 |
Aparece en las colecciones: | Doctorado |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
zazueta et al 2002.pdf | 164.3 kB | Adobe PDF | Visualizar/Abrir |
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