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  • 1 Ferdowsi University of Mashhad (FUM), Mashhad, Iran
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The aim of the current paper was to elucidate the influence of temperature and time on acrylamide formation and physico-chemical characteristics of bread. Additionally, the effect of asparaginase addition to bran was evaluated. With increasing baking time and temperature, the amount of acrylamide (µg kg−1) increased. The results indicated that the acrylamide concentration in treated samples with asparaginase was significantly less than those without asparaginase treatment. Based on Pearson’ test, it was found that there was a significant correlation between baking temperature and acrylamide concentration (R=0.99, P=0.025; and R=0.98, P=0.026 for the samples prepared by baking for 2.5 min and 3 min, respectively). The firmness of bread samples increased with increasing baking temperature (P>0.05), while asparaginase addition did not significant affect the textural characteristics of the final product. Breads baked at 320 °C for 3 min were more acceptable by the sensory panel in terms of their texture and chewiness, whereas the samples baked at 370 °C for 2.5 min had the lowest score in comparison to other evaluated samples.

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