Interest in fiber-rich foods, phytochemicals with antioxidant potential has been steadily increasing as people want to get health benefits other than basic nutrition. This study aimed to draw a profile of chemical composition, phytochemical profile of fruit pomaces grown in semi arid region of Brazil. Grapes, passion fruit, orange and pomegranate were analyzed for crude protein, lipid, moisture, mineral residue, non-fibrous carbohydrate, acid detergent fiber, neutral detergent fiber levels. Quantities of total tannins, flavonoids, anthocyanins were also quantified.

Investigate action of pancreatic lipase inhibition and characterization of extracts obtained from fruit pomace cultivars grown in Brazilian semiarid. Phytochemicals of Vitis labrusca, Passiflora edulis flavicarpa Deg., Citrus sinensis L Osbeck, and Punica granatum L. were extracted by maceration in a hydroethanolic solution. Inhibition activity of pancreatic lipase was performed by ELISA reader. To identify which compounds would probably be responsible for inhibitory activity, extracts were characterized by method of total phenolics using folin ciocalteau, phenolic acids and flavonoids were identified by HPLC, antioxidant potential was quantified by DPPH. With exception of pomegranate seed, all other pomace showed potential for inhibition of lipase. However, V. labrusca had higher percentage of inhibition (89.74%), this percentage similar to that obtained by commercial orlistat inhibitor, which would indicate its use as an efficient inhibitor. For all extracts were found several phytochemical compounds with phenolic characteristics, however, pomaces of P. granatum peel and V. labrusca showed best results in total phenolic and antioxidant activity. P. granatum peel had a high content of total phenolics (82.50 EAG g-1) and the best antioxidant activity (IC50 = 1.47 µg mL-1). All pomace extracts showed varied secondary metabolites, although antioxidant activity from grape and passion fruit pomaces showed potential for inhibition of lipids absorption.