SUMMARY
Chemical composition and minerals content of leguminous and cereals produced in the Argentinean Northwest
Different varieties of bean (Phaseolus vulgaris), corn (Zea mayz), lentil (Lens sp), soya (Glicine max) and wheat (Tricticum sp) were analyzed in order to obtaining data of chemical composition and content of minerals to contribute to the International Food Data System INFOODS in the elaboration of Regional Food Composition Tables and to evaluate the qua1ity of grains. The selected varieties were the ones produced in the northwestern region of Argentina. The beans were divided in five groups, according to their statistical similarity. The pallares variety is the one that presents bigger content of Cu (2,42 mg/100g), Fe (76,03mg/100g) and Zn (6,08 mg/l00g). The samples of corn were divided in three groups, according to their statistical similarity. The leales yellow corn has bigger content of Zn (3,16 mg/100g) that the other varieties of the region. The 8 rayas white corn is the one that presents bigger content of Fe (11,48 mg/1 00 g), whi1e the pisingall0 yellow corn is that of bigger content of Cu (1,21 mg/l00g).

Key words: Food data system, chemical composition, minerals, cereals, leguminous.

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