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  • Title: Optimization of the extrusion conditions and formulation of spaghetti enriched with full-fat soy flour based on the cooking and color quality.
    Author: Nasehi B, Mortazavi SA, Razavi SM, Mahallati MN, Karim R.
    Journal: Int J Food Sci Nutr; 2009; 60 Suppl 4():205-14. PubMed ID: 19370476.
    Abstract:
    The influence of full-fat soy flour (FFSF) 0-27.0 g/100 g, water content 31.0-35.0 g/100 g and extrusion conditions on the cooking and color characteristics of spaghetti was investigated. The process was performed with a speed of 10-40 rpm and a water circulating temperature of 35-70 degrees C. The results showed that adding FFSF causes decreases (P< or =0.05) in cooking time, cooking weight, intensity and hue characteristics. However, the cooking loss and saturation of spaghetti increased (P< or =0.05). The temperature and speed of the extruder had no significant effect on the cooking and color attributes. Interaction between them and the components, however, had a slight synergistic effect on characteristics. Also, interaction between the components and the water temperature has a negative effect on the color and cooking loss. Data analysis showed that the cooking and color characteristics were optimized when 56.9 g/100 g wheat flour, 12.1 g/100 g FFSF and 31.0 g/100 g water content at a screw speed of 40 rpm and a temperature of 35 degrees C were applied.
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