Extração e caracterização de amido de fontes não convencionais

Abstract

The main sources of starch for industrial use are corn, potatoes and cassava. The use of unconventional and industrially underutilized sources becomes an important source of starch supply. In addition to its use as body promoters, starch has been used in the production of biodegradable films and coatings. In this sense, the study of new non-conventional sources of starch has been growing in recent years. The objective in this work was to extract starch from unconventional sources such as pitomba, pigeon peas and jackfruit seeds and study their technological properties. Pigeonpea had a yield of 11% and pitomba, close to 9%. Starch concentration ranged from 79% for pitomba to 88% for jackfruit and corn. There was no significant difference between the samples for Hausner and compressibility indices. The increasing power and solubility index were tested at temperatures of 60°C, 70°C, 80°C and 90°C. The pitomba stood out in terms of swelling power and showed a high value starting at a temperature of 70 ºC. There was no significant difference between the samples for the Hausner index. The sources not evaluated in this study show great potential for use in industry. Pitomba starch showed a high value for forward power at lower temperatures, and can be recommended for use as a thickener to supply the body with certain products. The sources tested demonstrated potential for exploitation.