BACKGROUND Calcium fortification of maize has been achieved for millennia in Central America by the process of nixtamalization. Bioavailability of calcium is, however, compromised by phytate, which is present in large quantities in maize kernels and is only modestly reduced by nixtamalization. OBJECTIVE The objective was to compare the absorption of calcium from tortilla meals prepared from l...

Nixtamalization is a process given to corn kernels prior the elaboration of dough and tortillas. It provides adequate texture maize products but implies high energy input releases considerable volume waste effluent (nejayote). In this work, effect temperature (60 90 °C) addition nejayote solids, on textural properties color tortillas, were studied. was observed that after nixtamalization at 60 ...

Corn, Zea mays L., is the cereal with the highest production rate around the world, with an estimated production that exceeded 1021 million tons in 2014 (1). Corn is also the staple food for over 900 million people located in sub-Saharan Africa, South Asia, and Latin America. Around 600 million people are corn dependent, including 120 million malnourished children (2). As an example, the averag...

En esta investigación se determinaron las propiedades físicas y químicas del grano de maíces criollos sus retrocruzas mejoradas, así como la calidad nixtamal, masa tortillas diez los más usados en México este proceso. Se analizaron 40 originales (o) 70 (r) (BC1F3). 75 % el rendimiento incrementó 30 %. Los Tuxpeño Norteño, Pepitilla Celaya fueron mayor producción grano. El peso hectolítrico 60 c...

BACKGROUND Prickly pear cactus stem (nopal) has been used in folk medicine and a raw material since ancient times. Stems have been proved to possess components with valuable biological activities: anti inflamatory, antioxidant, antiulcerogenic, hypoglycemic, and so forth. Nowadays, people consume foods not only to cover the nutritional requirements, they also demand for healty, natural and conv...

Along the Texas-Mexico border, the prevalence of neural tube defects (NTDs) among Mexican-American women doubled during 1990-1991. The human outbreak began during the same crop year as epizootics attributed to exposure to fumonisin, a mycotoxin that often contaminates corn. Because Mexican Americans in Texas consume large quantities of corn, primarily in the form of tortillas, they may be expos...

When tens of thousands of people staged demonstrations in Mexico last year to protest a 60 percent increase in the price of tortillas, many analysts pointed to biofuel as the culprit. Because of US government subsidies, American farmers were devoting more and more acreage to corn for ethanol than for food, which sparked a steep rise in corn prices. The diversion of corn from tortillas to biofue...

Maize is one of the most important cereal crops for human consumption, yet it is of concern due to its low iron bioavailability. The objective of this study was to determine the effects of processing on iron bioavailability in common maize products and elucidate better processing techniques for enhancing iron bioavailability. Maize products were processed to represent different processing techn...

En el artículo, se analizan las conexiones etnomatemáticas entre conceptos geométricos evidenciados en la elaboración de tortilla por un comerciante Chilpancingo, México. La investigación fundamentó teóricamente Etnomatemática y metodología fue cualitativa-etnográfica. Los datos recolectaron a través una entrevista semiestructurada, aplicada tortillas ciudad los resultados presentan (circunfere...