Properties of foamed concrete utilizing Fe(II) as foam stabilizer for hydrolyzed pumpkin seed protein.

Ning Song, Zhongfeng Zhang, Chengcheng Ma, Guangqi Hu, Yushu Lai, Jiapeng Cui

Abstract read

In one paragraph

Article in Scientific reports, 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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4 · The record

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5 · Who and what money

Authors and funding

6 authors.

Ning SongCollege of Land Resources and Surveying Engineering, Shandong Agriculture and Engineering University, Jinan, 250100, China.

Zhongfeng ZhangCollege of Land Resources and Surveying Engineering, Shandong Agriculture and Engineering University, Jinan, 250100, China. 844983225@qq.com.

Chengcheng MaCollege of Land Resources and Surveying Engineering, Shandong Agriculture and Engineering University, Jinan, 250100, China.

Guangqi HuWeihai Zhongheng pipe pile Co., Ltd, Weihai, 264200, China.

Yushu LaiSchool of Mechanical Engineering, Chongqing Three Gorges University, Chongqing, 404020, China.

Jiapeng CuiSchool of Mechanical Engineering, Chongqing Three Gorges University, Chongqing, 404020, China.

Funding

Shandong Agriculture and Engineering University Start-Up Fund for Talented Scholars 2025GCCZR-02the Shandong Provincial Youth Innovation Team Development Plan of Colleges and Universities Grant No. 2024KJH018

6 · The paper itself

Abstract

This paper introduces a novel strategy for the fabrication of ultra-stable protein foams mediated by transition metal ions. Specifically, the transition metal ion Fe(II) was utilized as the foam stabilizer for hydrolyzed pumpkin seed protein (HPSP) in this study. To maximize foaming performance, response surface methodology (RSM) was utilized to optimize key process parameters in hot-alkali experimental setups. The experimental findings indicated that the optimal reaction conditions were identified as a pH of 11.5, a temperature of 55 ℃, and a reaction time of 1.5 h; under these conditions, the HPSP foaming agent exhibited the highest foaming volume of 488 mL. The interaction and the mechanism of foam stabilization between transition metal ions Fe(II) and HPSP were studied. The results of high performance liquid chromatography (HPLC) showed that the HPSP solution contained a large amount of isoleucine which was beneficial to the stability of foam. Low temperature transmission electron microscopy (Cryo TEM) and small angle X-ray scattering (SAXS) experiments have confirmed that the addition of Fe(II) promotes the exposure of hydrophobic groups in proteins and increases the size of aggregates. Meanwhile, the properties of foam and foamed concrete prepared using self-made foaming agent (Fe-HPSP) and plant protein foaming agents readily available on the market (PS) were studied. Experimental findings reveal that HPSP foams incorporating Fe(II) exhibit enhanced density, stability and viscosity. Furthermore, the resistance to shrinkage and homogeneity of the resultant foamed concrete are also improved. This research offers a novel strategy for the advancement of protein-based foaming agents.

Indexed as

CucurbitaIronPlant ProteinsSeedsHydrogen-Ion ConcentrationHydrolysisTemperatureX-Ray DiffractionIronPlant ProteinsFoam stabilizerHydrolyzing pumpkin seed proteinTransition metal ions

Identifiers

PMID41807684

DOI10.1038/s41598-026-43413-y

PMCPMC13096228

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LicenceCC BY-NC-ND

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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.