Effect of water migration rate on the deformation characteristics of wheat starch/gluten extruded noodles

文献类型： 外文期刊

第一作者： Gong, Yanfei

作者： Gong, Yanfei;Meng, Ang;Zhang, Yingquan;Zhang, Bo;Guo, Boli;Wei, Yimin;Ying, Danyang

作者机构：

关键词： Wheat starch/gluten extruded noodles; Water loss rate; Deformation characteristics

期刊名称：LWT-FOOD SCIENCE AND TECHNOLOGY （ 影响因子：6.056； 五年影响因子：6.295 ）

ISSN： 0023-6438

年卷期： 2022 年 163 卷

页码：

收录情况： SCI

摘要： Excessive deformation destroys the structure of wheat flour-based noodles. Wheat starch/gluten extruded noodles with various starch contents were made by an extruder and dried under various relative humidities to control noodle deformation. The difference between water activity (aw) and relative humidity (RH) includes three models: decrease model [(aw-RH) 33%-6%], constant model [(aw-RH) 22%-> 23%], and increase model [(aw-RH) 22%-> 40%]. The water migration rate was high when the difference increased, or the starch content was relatively high. When the extruded noodles are in the glass state, the relatively high water loss rate, induced by the model of [(aw-RH) 22%-> 40%], causes a high change ratio of slice area, rough area ratio, and concavity percentage of extruded noodles. Therefore, the water loss rate and deformation degree of wheat starch/gluten extruded noodles can be controlled by the difference between the water activity of noodles and the relative humidity of the environment.

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