Aprovechamiento de los residuos industriales de uvilla (Physalis peruviana) para la elaboración de barras energéticas en la Asociación Artesanal Tierra Productiva

Abstract

The purpose of this research is the utilization of cape gooseberry’s industrial residues to prepare energy bars. The cape gooseberry’s residues were characterized and showed a significant content of fiber, protein and fat, abundant amount of triterpenes and sterols, and an adequate microbiological quality. Eight energy bars were prepared as a result of the combination of three components: cape gooseberry’s residues (10-30%), oat-amaranth mixture (10-35%), and sugar-water mixture (25-45%); in each of these energy bars, physical properties (deformation according to hardness and work) with a Brookfield texturometer, were evaluated and no difference were found (p>0.05)in the different treatments. A sensorial analysis of the treatments showed that there were significant differences among the eight treatments (p>0.05), and treatment T2 (30% cape gooseberry’s residues, 10% oat-amaranth mixture, and 40% sugar-water mixture was determined as the best. It was also determined that the best treatment contains: carbohydrates 71%, protein 7%, fat 9%, and fiber 11%, the presence of traces of phosphorus, potassium, iron, zinc, vitamins A and C, and essential aminoacids (except tryptophan, lysine and cysteine). The product showed a good microbiological quality, and a net cost of $ 0.35 USD per 45 g. of product.