Caracterización de acelga fresca de Santiago del Estero (Argentina). Comparación del contenido de nutrientes en hoja y tallo. Evaluación de los carotenoides presentes

AUTOR(ES)

Costa, Sara Macías de, Montenegro, Mariana A., Arregui, Teresa, Pinto, M. Inés Sánchez de, Nazareno, Mónica A., Mishima, Beatriz López de

FONTE

Food Science and Technology

DATA DE PUBLICAÇÃO

2003-04

RESUMO

An integrated characterization study of Swiss chard grown in Santiago del Estero, Argentina, was carried out. As Swiss chard is a vegetable of important regional consumption, the determination of its basic constituents, minerals and pigments was done to appraise the nutritional value offered by this food in our area. Moisture, ash content, proteins, fats, available carbohydrates, total dietary fiber, chlorophylls and carotenoids were analysed, comparing the leaves and the stems. As to minerals, calcium, magnesium, sodium, manganese, zinc, iron, phosphorous, potassium, and boron were determined. Differences in the concentration of minerals, proteins, fats and fiber between the leaves and the stems were found, as well as the carotenoid content mainly in the leaves. These findings revealed important differences in energy content and provitamin A value, showing that the stem is a usable part of this vegetable to be recommended in diets with low calories.

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