Cooking quality of pre-cooked wheat-soybean pastas by extrusion

• Autor(a) principal: de Oliveira, Myriam Ferreira
• Data de Publicação: 2004
• Outros Autores: Wang, Sin-Huei, Costa, Priscila de Souza, Ascheri, José Luis Ramírez
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Pesquisa Agropecuária Brasileira (Online)
• Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/6799
• topic: extruded pasta; mixture of wheat and soybean; cooking losses; massa extrusada; mistura de trigo e soja; perdas por cozimento

The objective of this work was to evaluate effects of barrel temperature (BT) of extruder and moisture levels of wheat and soybean mixture on cooking quality of pre-cooked pastas by extrusion-cooking. The experiment was carried out, using Brabender single screw extruder with a constant feeding rate of 3.6 kg/h, a constant screw-speed of 90 rpm and a laminar shape die of 1 mm. Results showed that the soluble solid losses at an optimum cooking time increased with increasing soybean proportions (10% to 40%). The losses decreased with increasing BT up to a minimum, beyond which they increased. The moisture increase caused decreased losses at lower BT, however, an increase occurred at higher BT, which was affected by soybean proportions. Increasing BT caused a decrease in increased cooked weight and cooked volume up to a minimum, beyond which it increased. A reduction in increased cooked weight and cooked volume at optimum cooking time with the moisture increase and soybean proportion increase was verified.