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Effect of electron beam irradiation on the structural characteristics and functional properties of rice proteins

A study of the structural and functional changes of rice proteins (RPs) induced by electron beam irradiation (EBI) at 5 kGy, 10 kGy, 20 kGy, and 30 kGy was performed. The microcosmic surface structures of the RPs were changed and fragmented due to irradiation damage occurring on the RP surfaces. The...

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Detalles Bibliográficos
Autores principales: Zhang, Xinxia, Wang, Li, Chen, Zhengxing, Li, Yongfu, Luo, Xiaohu, Li, Yanan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9063936/
https://www.ncbi.nlm.nih.gov/pubmed/35519547
http://dx.doi.org/10.1039/c8ra10559f
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author Zhang, Xinxia
Wang, Li
Chen, Zhengxing
Li, Yongfu
Luo, Xiaohu
Li, Yanan
author_facet Zhang, Xinxia
Wang, Li
Chen, Zhengxing
Li, Yongfu
Luo, Xiaohu
Li, Yanan
author_sort Zhang, Xinxia
collection PubMed
description A study of the structural and functional changes of rice proteins (RPs) induced by electron beam irradiation (EBI) at 5 kGy, 10 kGy, 20 kGy, and 30 kGy was performed. The microcosmic surface structures of the RPs were changed and fragmented due to irradiation damage occurring on the RP surfaces. The changes in the UV visible spectra, intrinsic fluorescence spectra, surface hydrophobicity and SH and SS group contents indicated that the RPs unfolded after EBI treatment. In addition, the degree of conformational change was increased with increasing EBI treatment doses. FTIR analysis showed that the secondary structure redistributed, showing decreases in α-helices and concomitant increases in β-sheets, β-turns and random coils. The functional properties, emulsifying abilities, water adsorption capacities and oil adsorption capacities of the irradiated RPs improved dose-dependently, with maximums occurring at 30 kGy. The foaming properties were also enhanced by EBI; however, this effect was not dose-dependent. In contrast, all of the samples irradiated by electron beams presented lower emulsion stability than the control (0 kGy). These results provide a theoretical basis for the application of EBI in improving protein properties in the future.
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spelling pubmed-90639362022-05-04 Effect of electron beam irradiation on the structural characteristics and functional properties of rice proteins Zhang, Xinxia Wang, Li Chen, Zhengxing Li, Yongfu Luo, Xiaohu Li, Yanan RSC Adv Chemistry A study of the structural and functional changes of rice proteins (RPs) induced by electron beam irradiation (EBI) at 5 kGy, 10 kGy, 20 kGy, and 30 kGy was performed. The microcosmic surface structures of the RPs were changed and fragmented due to irradiation damage occurring on the RP surfaces. The changes in the UV visible spectra, intrinsic fluorescence spectra, surface hydrophobicity and SH and SS group contents indicated that the RPs unfolded after EBI treatment. In addition, the degree of conformational change was increased with increasing EBI treatment doses. FTIR analysis showed that the secondary structure redistributed, showing decreases in α-helices and concomitant increases in β-sheets, β-turns and random coils. The functional properties, emulsifying abilities, water adsorption capacities and oil adsorption capacities of the irradiated RPs improved dose-dependently, with maximums occurring at 30 kGy. The foaming properties were also enhanced by EBI; however, this effect was not dose-dependent. In contrast, all of the samples irradiated by electron beams presented lower emulsion stability than the control (0 kGy). These results provide a theoretical basis for the application of EBI in improving protein properties in the future. The Royal Society of Chemistry 2019-05-01 /pmc/articles/PMC9063936/ /pubmed/35519547 http://dx.doi.org/10.1039/c8ra10559f Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Zhang, Xinxia
Wang, Li
Chen, Zhengxing
Li, Yongfu
Luo, Xiaohu
Li, Yanan
Effect of electron beam irradiation on the structural characteristics and functional properties of rice proteins
title Effect of electron beam irradiation on the structural characteristics and functional properties of rice proteins
title_full Effect of electron beam irradiation on the structural characteristics and functional properties of rice proteins
title_fullStr Effect of electron beam irradiation on the structural characteristics and functional properties of rice proteins
title_full_unstemmed Effect of electron beam irradiation on the structural characteristics and functional properties of rice proteins
title_short Effect of electron beam irradiation on the structural characteristics and functional properties of rice proteins
title_sort effect of electron beam irradiation on the structural characteristics and functional properties of rice proteins
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9063936/
https://www.ncbi.nlm.nih.gov/pubmed/35519547
http://dx.doi.org/10.1039/c8ra10559f
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