Caracterização física e química da casca, polpa e semente de atemoia ´gefner´

Abstract

The atemoya is a hybrid fruit derived from the cross between the sugar apple (fruta-do-conde), better known as ata (Annona squamosa L.) with the cherimoya (Annona cherimola Mill.). The purpose of this work was to characterize the chemical constituents of the fractions skin, pulp and seed of the hybrid fruit atemoya, variety Gefner. The fruits purchased and selected were weighted and measured. They were separated into skin, pulp, seed and eixo floral which were also weighted to determine their proportions. For the rest of the fruits, the fractions were separated into o 7 replicates of 13 fruits. Next, the fractions skin, pulp and seeds were freeze-dried and stored in freezer. The proportion of the fruit fractions, the centesimal composition, vitamin C, total sugars, mineral and some bioactive compounds were determined. The pulp stood for about 60% of the fruit weight, while the skin 28.13% and the seeds 8.34%. The fruit presented on the average 56 seeds, with longitudinal diameter of 10.79 cm and transversal diameter of 26.64 cm. The largest contents of crude protein, ether extract and dietary fiber were found in both the seeds and skin. The skin stood out in the ash contents. The pulp presented the highest contents of vitamin C and total sugars in relation to the other fractions. The order of the composition of macronutrients in the skin, pulp and seeds of the atemoya was K>P>Ca>Mg; for the skin and seed micronutrients was Fe>Zn>Cu>Mn>S and in the pulp was Fe>Zn>Mn>Cu>S. The skin presented the higher levels of trypsin inhibitors and hemagglutinating activity. The phenolic compounds were relatively low in the fruit.