Therdthai, Nantawan
(Centre for Advanced Food Research, University of Western Sydney, Hawkesbury Campus, Penrith South DC NSW 1797, Australia)
,
Zhou, Weibiao
(Centre for Advanced Food Research, University of Western Sydney, Hawkesbury Campus, Penrith South DC NSW 1797, Australia)
,
Adamczak, Thomas
(BRI Australia Limited & Quality Wheat CRC Limited, North Ryde, NSW 2113, Australia)
AbstractThe common industrial practice in bread making is to bake bread in an oven that is controlled at a constant temperature. Due to the oven structure, the bread effectively experiences four major temperature zones. On the other hand, temperature in each zone is the dominating factor on the baki...
AbstractThe common industrial practice in bread making is to bake bread in an oven that is controlled at a constant temperature. Due to the oven structure, the bread effectively experiences four major temperature zones. On the other hand, temperature in each zone is the dominating factor on the baking mechanisms including gelatinisation, enzymatic reaction and browning reaction, therefore the final bread quality. This research aims to establish an optimal temperature profile for white-sandwich bread to achieve the best product quality. Experiments were conducted by a multi-level partial factorial design, where dough was baked in a process with 4 equally divided zones. Mathematical models were established to describe the effects of tin temperature and baking time on bread quality attributes. Based on the models, by solving a constrained minimisation problem, the optimal tin temperature profile for the lowest weight loss was determined to be {115 °C, 130 °C, 156 °C, 176 °C} in the four zones with a baking time of 27.4 min. The crumb temperature was predicted to reach 99 °C, while the top crust colour, side crust colour and averaged crust colour were all within an acceptable range.
AbstractThe common industrial practice in bread making is to bake bread in an oven that is controlled at a constant temperature. Due to the oven structure, the bread effectively experiences four major temperature zones. On the other hand, temperature in each zone is the dominating factor on the baking mechanisms including gelatinisation, enzymatic reaction and browning reaction, therefore the final bread quality. This research aims to establish an optimal temperature profile for white-sandwich bread to achieve the best product quality. Experiments were conducted by a multi-level partial factorial design, where dough was baked in a process with 4 equally divided zones. Mathematical models were established to describe the effects of tin temperature and baking time on bread quality attributes. Based on the models, by solving a constrained minimisation problem, the optimal tin temperature profile for the lowest weight loss was determined to be {115 °C, 130 °C, 156 °C, 176 °C} in the four zones with a baking time of 27.4 min. The crumb temperature was predicted to reach 99 °C, while the top crust colour, side crust colour and averaged crust colour were all within an acceptable range.
Lebensmittel-Wissenschaft + Technologie Zanoni 28 3 314 1995 10.1016/S0023-6438(95)94458-3 Modelling of starch gelatinisation kinetics of bread crumb during baking
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