Use of silver film from coffee in the production of crunchy flakes

Abstract

Brazil is the largest coffee producer in the world and the second largest consumer of this beverage, portraying the great economic importance of this culture for the country. Like any agro-industrial process, the processing of the coffee fruit generates a large amount of waste. One of these residues is obtained in the roasting stage, being called endocarp or silver film that, until the present moment, is used in the manufacture of animal feed and as a substrate for plant cultivation. The objective of this study was to use the silver film as a raw material for the production of a food: crispy flakes. The silver film was supplied by a coffee processing company of Chapecó/SC. Initially, a flour with the silvery film was produced, which was later used in the preparation of crispy flakes. Microbiological analyzes of the final product were carried out and the results, when compared with the legislation, were in accordance with the required legal standards. The same happened with the physicochemical analyses. A sensory analysis of the crispy flakes was also carried out in relation to the acceptance of the attributes: color, aroma, flavor, texture and overall impression, using a 9-point structured hedonic scale, ranging from extremely liked to extremely disliked, as well as purchase intention. The acceptability test revealed the acceptance potential of the tested product.