Caracterização química e atividade antioxidante da barra de cereal caseira de maracujá

Abstract

Introduction: Today, the food industry together with consumers has been raising interest in healthy and balanced foods, triggering the creation of products such as cereal bars, which is an alternative food supplement, gaining acceptance of consumers according to their practicality Consumption and nutritional terms. The use of industrial waste of yellow passion fruit has been of great economic interest in the country, due to transforming what has been incorrectly discarded in food products containing bioactive compounds. These residues present high values of beneficial substances, such as fibers (pectin), vitamins, minerals and phenolic compounds with antioxidant activity, contributing to a healthy and balanced diet. Objective: In this context, the present study aimed to develop and analyze the nutritional composition and antioxidant activity of the homemade cereal bar using passion fruit in an integral way. Materials and methods: Processing of homemade passion fruit cereal bar. In the laboratory the ashes were analyzed by calcining in muffle, humidity was determined by the oven at 105 ± 1 ° C, the protein was determined by the Kjeldahl method, the lipids were analyzed by Shoxlet extractor, the dietary fibers were determined by the enzymatic method The determination of the mineral content was by nitroperchloric digestion and the determination of the antioxidant activity by the radical sequestration DPPH was by the Brand Williams method. Results: The bar of homemade passion fruit cereal presented moisture (20.93 g / 100g-1), ashes (1.29g / 100g-1), protein (6.89g / 100g-1), lipid 1), total dietary fiber (9.35g / 100g-1), being considered a source of fiber and energy (367.39 kcal / 100g-1). As regards mineral content, the cereal bar presented levels of phosphorus (50.84 mg / 100g-1), potassium (90.55 mg / 100g-1), sodium (8.81 mg / 100g-1), Calcium (12.03 mg / 100g-1), magnesium (13.73 mg / 100g-1), chromium (0.05 μg / 100g-1), copper (0.13 μg / 100g-1), manganese 0.45 mg / 100g-1), iron (0.04 mg / 100g-1) and zinc (0.52mg / 100g-1). Final considerations: Through the analysis, the homemade passion fruit cereal bar is considered a source of total dietary fiber due to its formulation of ingredients such as flaxseed, passion fruit peel flour. In additionto being a good source of fiber, the cereal bar has good antioxidant activity contributing to the prevention and control of several pathologies that are caused by the disordered action of free radicals.