Aproveitamento da casca de banana para produção de farinha destinada à formulação de biscoitos

Abstract

The Brazil wastes annually 26.3 million tons of food waste generated for banana 30% is composed of the shell, the industrialization these are usually discarded serving only as animal feed. However, if properly handled, can be used as a raw material for producing new products. The banana peel flour has nutritional elements relevant, especially with regard to the minerals, and thus has the potential to be applied to value-added products. This study aimed to develop flour biscuit base of banana (Musa sapientium), the variety Pacovan, rich in potassium, calcium and magnesium. The flour was obtained by convective drying under the conditions of a temperature of 60 ° C, 60 minutes and air velocity of 1 m / s, then was held grinding operation. Analyses were performed using physicochemical, for the raw material fresh, flour and biscuits. Five formulations were defined for the cookies: control, 25%, 50%, 75% and 100% flour banana peel. In the sensory analysis, we used a panel of 57 tasters were asked to evaluate these, in general, the acceptability of each sample using a nine point hedonic scale. The analysis of the data, with the exception of the sensory analysis was performed by analysis of variance. To the flour was found moisture values (7.83 %) and ash (7.56 %) in accordance with current legislation, and excellent levels of minerals potassium (3.670 mg/100 g), calcium (610 mg/100g) and magnesium (290 mg/100g). The biscuits also showed moisture and water activity within the standards and values of ash high, as expected. With respect to sensory analysis, the control formulations, 25 and 50% achieved the best scores with respect to all attributes and overall acceptability. Thus, it can be stated that the flour banana peel is considered a good choice of raw material for the production of biscuits and bakery products.