Elaboração de bebida a base de leite UAT e leite em pó enriquecida com zinco e selênio

Abstract

The milk and dairy products are considered important food for a healthy, because it has high content of nutrients and make part of the daily life of the population. Due to the fact that this food was part of the Brazilian's feeding habit, its fortification can be used to provide essential minerals. Zinc and selenium are nutrients that act on growth, cognitive development, antioxidant defense, immune defense among others. The acceptance of fortified products can be evaluated through the sensory analysis, technique of easy applicability and high reliability. The study aimed to evaluate the acceptance of powdered milk and heat-treated by ultra high temperature (UHT) enriched with different concentrations of zinc and selenium separately, and mixtures of these in the same sample by hedonic scale of nine points, as well as to check the quality of the diet of students of a technical course of dairy in the city of Juiz de Fora, Minas Gerais utilizing twenty-four hour recall and food frequency questionnaire. The most accepted milk added only of zinc was the lowest amount of UHT and the mineral selenium added the most UHT amount. Regarding the milk added the two nutrients while three UHT milk had higher average no significant difference. The feeding of 95% students requires modifications, because they consume little variety and choose for foods for easier access to much of the time are less healthy choices. Sensory analysis showed that the milks enriched with zinc and selenium obtained a good acceptance by the students and is an alternative to improve the quality of milk offered to students.