CARACTERIZACIÓN DE ACELGA FRESCA DE SANTIAGO DEL ESTERO (ARGENTINA). COMPARACIÓN DEL CONTENIDO DE NUTRIENTES EN HOJA Y TALLO. EVALUACIÓN DE LOS CAROTENOIDES PRESENTES1

SARA MACÍAS DE COSTA; MARIANA MONTENEGRO; TERESA ARREGUI; M.INES SANCHEZ DE PINTO; MONICA A. NAZARENO; BEATRIZ LÓPEZ DE MISHIMA

CIêNCIA E TECNOLOGIA DE ALIMENTOS

SOC BRASILEIRA CIENCIA TECNOLOGIA ALIMENTOS

Año: 2003 vol. 23 p. 33 - 37

0101-2061

SUMMARY.CHARACTERJZATION OF FRESH Beta vulgarís FROM SANTIAGO DEL ESTERO (ARGENTINA).NUTRIENT AND CAROTEN1OD CONTENT OF STEM AND LEAVES. 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 valué offered by this food in our área. Moisture, ash contení, 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. Thesefindings revealed important differences in energy content and provitamin A valué, showing that the stem is a usable part of this vegetable to be recommended in diets with low calones.Keywords: percent composition; minerals; carotenoids; provitamin A; swiss chard.