Elaboração e caracterização de farinhas da fração foliar da beterraba (Beta vulgaris L.)

Abstract

There is an increase in people concerned about combating the waste of food mainly from vegetables. In order to reuse this food, the present study chose to prepare flours of the beet leaf part. Four types of oven drying (with and without blanching, foam mat and pre-osmotic) were made and another by lyophilization. Physicochemical analyzes were performed on each type of flour. The average results for beet-leaf flour indicated for ash, 17.5%; for humidity 5.8%; titratable acidity, 4.1%; pH 8.1%; total dietary fiber 57.5%; water retention capacity, with 47.6% and emulsifying capacity to 61.9%. Samples submitted to directly oven dehydration presented higher fiber content. The sample produced by lyophilization presented higher water retention capacity, better emulsifying capacity and higher acidity.