Spatial distribution patterns of protein and starch in wheat grain affect baking quality of bread and biscuit
Spatial distribution patterns of protein and starch in wheat grain affect baking quality of bread and biscuit
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DOI：
10.1016/j.jcs.2017.07.017
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发表时间：
2018-01-01
影响因子：
3.8
通讯作者：
Jiang, Dong
中科院分区：
文献类型：
--
作者：
Zhou, Qin;Li, Xiangnan;Jiang, Dong
To evaluate the spatial distribution of chemicals and their contribution to processing quality, wheat grains were layered into nine fractions from the surface to the center layer. The content of total starch, amylose and amylopectin gradually increased from the surface layer to inner layer, while albumin, globulin and total protein decreased in this direction. Contents of gliadin, glutenin, high molecular weight glutenin subuints (HMW-GS) and glutenin macropolymers (GMP) increased from the surface layer, and peaked at the second or the third pearling layer, and then decreased till the center layer. The mean particle diameter of starch granules increased gradually from the surface to inner except at P9. Bread baking performance was the best for flour at the mid layers, while was the worst for flour from the surface layer, especially in terms of taste and texture. Biscuit making performance was the best at the center layers, while poorest at the surface layer. (C) 2017 Published by Elsevier Ltd.
