Corn tortillas are produced using the traditional nixtamalisation process (TP). Nevertheless, one of the greatest problems that the tortilla industry faces is the high level of losses of solids. The aim of this research was to evaluate the nutritional value of a whole-grain tortilla, produced using an ecological process (EP). In the EP corn was cooked at 90°C with 1.8% (w ⁄ w) calcium sulphate. The grains were steeped, washed and grounded to obtain the masa, which was baked to produce tortillas. Also, tortillas were prepared using the TP and following the same steps as those used in the EP, except that 1.0% (w ⁄ w) of calcium hydroxide was used. The tortillas from EP retained 14.05, 6.03, and 54.02% more fat, protein and fibre than tortillas produced by the TP. The PER value of rats fed whole-grain tortillas (1.81) was not different from that of rats fed the traditional tortillas (1.85).
La región de los Altos Norte se ubica en la parte noreste del estado de Jalisco dentro de la cuenca de Río Verde en la región Hidrológica Lerma - Santiago. En esta región, el principal producto del sector ganadero es el huevo para plato que representa el 49.8% de la producción total (2013). Gran parte de los residuos generados en la región por la actividad doméstica, pecuaria e industrial no son manejados adecuadamente ocasionando graves deterioros ambientales. En el presente trabajo se comparan los análisis de 20 puntos de muestreo de aguas superficiales distribuidos en los 8 municipios que conforman la región en dos ocasiones (2014 y 2016), detectándose cierto grado de contaminación en los cuerpos de agua estudiados en todos los municipios. Los que presentan mayor grado de contaminación son: Lagos de Moreno, San Juan de Los Lagos, Unión de San Antonio, Villa Hidalgo y en la última evaluación San Diego de Alejandría, los municipios con menor grado de contaminación son Encarnación de Díaz, Ojuelos y Teocaltiche.
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