Effect of Homogenization Assisted with Enzymatic Treatment on the Structural and Functional Properties of Soybean Protein Nanoparticles

The commercial soy protein isolate (SPI) was used as raw material to prepare soy protein nanoparticles (SPNPs) through either single enzymatic treatment or homogenization assisted with enzymatic treatment. The structural characteristics of particle size, polydispersity index, morphology, Fourier tra...

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Main Authors: Jinge WANG, Yongjian CAI, Junmei LIU, Qiangzhong ZHAO
Format: Article
Language:zho
Published: The editorial department of Science and Technology of Food Industry 2023-07-01
Series:Shipin gongye ke-ji
Subjects:
Online Access:http://www.spgykj.com/cn/article/doi/10.13386/j.issn1002-0306.2022090179
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author Jinge WANG
Yongjian CAI
Junmei LIU
Qiangzhong ZHAO
author_facet Jinge WANG
Yongjian CAI
Junmei LIU
Qiangzhong ZHAO
author_sort Jinge WANG
collection DOAJ
description The commercial soy protein isolate (SPI) was used as raw material to prepare soy protein nanoparticles (SPNPs) through either single enzymatic treatment or homogenization assisted with enzymatic treatment. The structural characteristics of particle size, polydispersity index, morphology, Fourier transform infrared and endogenous fluorescence spectra of SPNPs, as well as the physicochemical properties of the pattern of intra-particle interactive forces, surface hydrophobicity, Zeta-potential, amphipathy, emulsifying, and foaming properties of SPNPs were comparably analyzed. It was found that the SPI with large particle size (230.00 nm), the SPNPs prepared by either enzymatic or homogenization assisted with enzymatic treatment at low degree (3%) of hydrolysis (DH) were spherical and showed smaller size distributions with z-average size from 64.20 to 144.80 nm. The analysis of secondary structure implied that SPNPs prepared by homogenization assisted with enzymatic treatment showed an increased ratio of α-helix/β-sheet to a narrow range of around 45%. Compared with SPNPs prepared by single enzymatic treatment, the SPNPs showed a stronger negative charge (−33 mV) under neutral conditions and higher H0, suggesting better emulsifying and foaming properties of the present SPNPs. Meanwhile, the results of the interactive force indicated that the hydrophobic interactions mainly dominated the structure formation of SPNPs, along with hydrogen bonds and disulfide bonds mainly stabilizing the external and internal structure of nanoparticles, respectively. The above results indicated that homogenization assisted with enzymatic treatment provided new solutions for the green preparation of multifunctional protein nanoparticles.
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spelling doaj.art-2cd2b274187c4f87aafd528d22f6a7cc2023-08-24T06:00:43ZzhoThe editorial department of Science and Technology of Food IndustryShipin gongye ke-ji1002-03062023-07-014413859310.13386/j.issn1002-0306.20220901792022090179-13Effect of Homogenization Assisted with Enzymatic Treatment on the Structural and Functional Properties of Soybean Protein NanoparticlesJinge WANG0Yongjian CAI1Junmei LIU2Qiangzhong ZHAO3School of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, ChinaSchool of Food Science and Engineering, South China University of Technology, Guangzhou 510640, ChinaSchool of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, ChinaSchool of Food Science and Engineering, South China University of Technology, Guangzhou 510640, ChinaThe commercial soy protein isolate (SPI) was used as raw material to prepare soy protein nanoparticles (SPNPs) through either single enzymatic treatment or homogenization assisted with enzymatic treatment. The structural characteristics of particle size, polydispersity index, morphology, Fourier transform infrared and endogenous fluorescence spectra of SPNPs, as well as the physicochemical properties of the pattern of intra-particle interactive forces, surface hydrophobicity, Zeta-potential, amphipathy, emulsifying, and foaming properties of SPNPs were comparably analyzed. It was found that the SPI with large particle size (230.00 nm), the SPNPs prepared by either enzymatic or homogenization assisted with enzymatic treatment at low degree (3%) of hydrolysis (DH) were spherical and showed smaller size distributions with z-average size from 64.20 to 144.80 nm. The analysis of secondary structure implied that SPNPs prepared by homogenization assisted with enzymatic treatment showed an increased ratio of α-helix/β-sheet to a narrow range of around 45%. Compared with SPNPs prepared by single enzymatic treatment, the SPNPs showed a stronger negative charge (−33 mV) under neutral conditions and higher H0, suggesting better emulsifying and foaming properties of the present SPNPs. Meanwhile, the results of the interactive force indicated that the hydrophobic interactions mainly dominated the structure formation of SPNPs, along with hydrogen bonds and disulfide bonds mainly stabilizing the external and internal structure of nanoparticles, respectively. The above results indicated that homogenization assisted with enzymatic treatment provided new solutions for the green preparation of multifunctional protein nanoparticles.http://www.spgykj.com/cn/article/doi/10.13386/j.issn1002-0306.2022090179soy protein nanoparticles (spnps)homogenization assisted with enzymatic treatmentstructuralfunctional properties
spellingShingle Jinge WANG
Yongjian CAI
Junmei LIU
Qiangzhong ZHAO
Effect of Homogenization Assisted with Enzymatic Treatment on the Structural and Functional Properties of Soybean Protein Nanoparticles
Shipin gongye ke-ji
soy protein nanoparticles (spnps)
homogenization assisted with enzymatic treatment
structural
functional properties
title Effect of Homogenization Assisted with Enzymatic Treatment on the Structural and Functional Properties of Soybean Protein Nanoparticles
title_full Effect of Homogenization Assisted with Enzymatic Treatment on the Structural and Functional Properties of Soybean Protein Nanoparticles
title_fullStr Effect of Homogenization Assisted with Enzymatic Treatment on the Structural and Functional Properties of Soybean Protein Nanoparticles
title_full_unstemmed Effect of Homogenization Assisted with Enzymatic Treatment on the Structural and Functional Properties of Soybean Protein Nanoparticles
title_short Effect of Homogenization Assisted with Enzymatic Treatment on the Structural and Functional Properties of Soybean Protein Nanoparticles
title_sort effect of homogenization assisted with enzymatic treatment on the structural and functional properties of soybean protein nanoparticles
topic soy protein nanoparticles (spnps)
homogenization assisted with enzymatic treatment
structural
functional properties
url http://www.spgykj.com/cn/article/doi/10.13386/j.issn1002-0306.2022090179
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