Effects of heat-moisture extrusion on the structure and functional properties of protein-fortified whole potato flour.

IF 6.5 1区农林科学 Q1 CHEMISTRY, APPLIED Food Chemistry: X Pub Date : 2024-11-28 eCollection Date: 2024-12-30 DOI:10.1016/j.fochx.2024.102048

Suying Hao, Ying Zheng, Mingyuan Li, Xiaobo Feng, Xiaoqing Yang

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Abstract

The aim of this study was to explore the effects of twin-screw extrusion combined with exogenous protein on interaction between starch and protein of the compound potato powder thereby contributing to better structural characterization and functional properties of whole potato flour lack of gluten. The results showed that the heat-moisture extrusion increased the relative crystallinity of starch. Meanwhile, the exogenous protein introduced (-SH_free) under the action of extrusion to form (-S-S-) in the compound system and furtherly promoted the construction of the network structure of the protein. Additionally, WAC, OAC, solubility, the thermal properties and the thermal stability of the compound potato powder were improved. The content of bound water was increased, thereby increasing water migration in the dough. The results confirmed effectiveness of using extrusion combining with exogenous protein to improve the physicochemical properties of potato flour.

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热湿挤压对蛋白质强化马铃薯全粉结构和功能特性的影响

本研究旨在探讨双螺杆挤压结合外源蛋白对复合马铃薯粉中淀粉与蛋白质相互作用的影响，从而改善无麸质全马铃薯粉的结构表征和功能特性。结果表明，热湿挤压提高了淀粉的相对结晶度。同时，外源蛋白在挤压作用下引入（- shfree）在复合体系中形成（- s - s -），进一步促进了蛋白网状结构的构建。此外，复合马铃薯粉的WAC、OAC、溶解度、热性能和热稳定性均得到改善。增加了结合水的含量，从而增加了面团中的水分迁移。结果证实了挤压与外源蛋白结合对马铃薯面粉理化性能的改善是有效的。

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来源期刊

Food Chemistry: X CHEMISTRY, APPLIED-

CiteScore

4.90

自引率

6.60%

发文量

315

审稿时长

55 days

期刊介绍： Food Chemistry: X, one of three Open Access companion journals to Food Chemistry, follows the same aims, scope, and peer-review process. It focuses on papers advancing food and biochemistry or analytical methods, prioritizing research novelty. Manuscript evaluation considers novelty, scientific rigor, field advancement, and reader interest. Excluded are studies on food molecular sciences or disease cure/prevention. Topics include food component chemistry, bioactives, processing effects, additives, contaminants, and analytical methods. The journal welcome Analytical Papers addressing food microbiology, sensory aspects, and more, emphasizing new methods with robust validation and applicability to diverse foods or regions.