Aplicação de amido oxidado de mandioca como ingrediente em panificação

Abstract

The bread is obtained by cooking the dough fermented flour. To improve the performance of flour some additives such as emulsifiers, oxidants and enzymes may be added. The aim of this study was to use cassava starch oxidized with hydrogen peroxide in the absence or presence of potassium permanganate or hydrogen peroxide as improving agent in baking. For the manufacture of bread were used 2% oxidized starch for each formulation and also introducing one formulation at 100 ppm ascorbic acid being the usual additive and as another standard formulation without any additive. Tests were conducted in bread specific volume, crumb colorimetry, sensory analysis and shelf life; in dough fermentation time by index Pelshenke, and quantification off carbonyl and carboxyl groups in oxidized starches. It was found that in the categories: color of the crumb, and sensory evaluation of breads and index Pelshenke all treatments were not statistically different (p> 0.05) of control. The formulation of hydrogen peroxide/potassium permanganate excelled in tests of specific volume and shelf life of bread did not differ statistically (p> 0.05) with ascorbic acid formulation. In the determination of carbonyl and carboxyl starch oxidized with hydrogen peroxide and iron sulfate had higher carbonyl groups.