Ultrasound-enhanced foaming and emulsifying properties of flaxseed protein isolate: mechanisms mediated by conformational flexibility and interfacial tension.

Narisu Qin, Wurigumule Xu, Zitong Zhao, Yechuan Huang

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Article in Food chemistry: X, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

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4 authors.

Narisu QinFunctional Exploration and Comprehensive Utilization Team for Specialty Foods, Jingchu University of Technology, Jingmen 448000, China.

Wurigumule XuCollege of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China.

Zitong ZhaoFunctional Exploration and Comprehensive Utilization Team for Specialty Foods, Jingchu University of Technology, Jingmen 448000, China.

Yechuan HuangFunctional Exploration and Comprehensive Utilization Team for Specialty Foods, Jingchu University of Technology, Jingmen 448000, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Despite the high nutritional value of flaxseed protein isolate (FPI), its food applications remain limited due to poor foaming and emulsifying properties. The current research examined the effects of ultrasonic treatment (0, 100, 200, 300, and 400 W, 15 min) on FPI functionality, with primary focus structural alterations, conformational flexibility, and interfacial behavior. Ultrasound significantly reduced particle size, increased absolute zeta potential, and exposed sulfhydryl and hydrophobic groups, and rearranged the secondary structure. These changes enhanced conformational flexibility, reduced interfacial tension, and improved the viscoelasticity of the adsorbed protein film. Foaming capacity increased from 50.56% to 99.45% at 200 W, with the emulsifying activity index increasing from 2.43 to 4.11 m

Indexed as

Conformational flexibilityEmulsifying propertiesFlaxseed proteinFoaming propertiesInterfacial behaviorUltrasound

Identifiers

PMID42908890

DOI10.1016/j.fochx.2026.104619

PMCPMC13683455

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.