期刊
FOOD CHEMISTRY
卷 188, 期 -, 页码 328-336出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2015.04.045
关键词
Dough structural characteristics; Vacuum mixing; Textural profile properties; Microstructure; Free thiol group; Glutenin macropolymer
资金
- China Agriculture Research System [CARS-03]
- Special Fund for Agro-scientific Research in the Public Interest [201303070]
- National Centre for Research on Wheat Industry Technology (China)
The structural characteristics of noodle dough under different vacuum mixing times were investigated using three flour samples by texture profile analysis (TPA), SEM, FTIR micro-imaging, and by measuring the glutenin macropolymer and free -SH content. The sheeted dough mixed for 8 min presented better textural properties and a more compact and even microstructure. Insufficient mixing resulted in an uneven distribution and an inadequately developed gluten network, especially for weak-gluten flour (Jimai 22). Excessive mixing was detrimental to the developed dough network and decreased the uniformity of component spatial distribution. Furthermore, excessive mixing led to a decrease in GMP content as well as the increase in free -SH content. Flours with different protein characteristics behaved differently. The TPA, microstructure and free -SH content of dough of Zhengmai 366 was less affected by mixing time than that of Jimai 22, suggesting that strong-gluten flour has better noodle dough mixing tolerance. (C) 2015 Elsevier Ltd. All rights reserved.
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