期刊
FOOD CHEMISTRY
卷 187, 期 -, 页码 451-459出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2015.04.041
关键词
KAMUT (R) Khorasan flour; Durum wheat flour; Dough; Fermentation
Investigations were made in order to evaluate the influence of the flour type, chemical acidification and fermentation on characteristics of doughs obtained with durum wheat and KAMUT (R) Khorasan flour. Doughs were observed immediately after mixing, 90 and 360 min of leavening at 30 degrees C. Fundamental rheology, yeasts heat production by isothermal microcalorimetry and the interaction between water and biopolymers by means of time domain nuclear magnetic resonance were evaluated. In addition aromatic metabolite development was followed by means of the combined application of gas-chromatography and electronic nose. KAMUT (R) Khorasan flour was found to be more suitable than durum wheat for the fermentation processes tested, especially at acidic conditions, as shown by the increase of the volume and the metabolic heat production by yeast. In acidified dough the pattern of volatile metabolites allowed a clear distinction between the types of dough. Moreover the water/starch proton pool was characterized by higher T-2 values in the KAMUT (R) Khorasan samples. (C) 2015 Elsevier Ltd. All rights reserved.
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