Characterization of Okra Seed Protein/Rutin Covalent Complex and Its Application in Nanoemulsions
A covalent complex of okra seed protein (OSP) and rutin was prepared using the alkali-induced method and characterized. Its application in nanoemulsions was also evaluated. Multi-spectral analysis confirmed the formation of the covalent complex, with OSP as the main body. With an increasing rutin do...
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MDPI AG
2025-05-01
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| Series: | Foods |
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| Online Access: | https://www.mdpi.com/2304-8158/14/10/1672 |
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| author | Chengyun He Lu Bai Yingxuan Zhou Benguo Liu Sheng Geng |
| author_facet | Chengyun He Lu Bai Yingxuan Zhou Benguo Liu Sheng Geng |
| author_sort | Chengyun He |
| collection | DOAJ |
| description | A covalent complex of okra seed protein (OSP) and rutin was prepared using the alkali-induced method and characterized. Its application in nanoemulsions was also evaluated. Multi-spectral analysis confirmed the formation of the covalent complex, with OSP as the main body. With an increasing rutin dosage during the preparation process, the amount of rutin in the complex progressively ascended, and the α-helix structure and surface hydrophobicity of the complex gradually declined. The complex exhibited remarkable ABTS radical scavenging capacity and reducing power, which were proportional to the total phenolic content. The OSP/rutin complex could be utilized for the fabrication of O/W nanoemulsions, which remained stable in terms of droplet size and appearance after 28 days of storage at both 4 °C and 25 °C. Furthermore, lipid oxidation in the nanoemulsion stabilized by the OSP/rutin covalent complex could be effectively inhibited, and the emulsion could enhance the UV irradiation resistance of lutein loaded in the oil phase. Our results can provide a reference for the development of protein–polyphenol covalent complexes. |
| format | Article |
| id | doaj-art-63e7b83be14f47ac9169c4b05fc99e53 |
| institution | DOAJ |
| issn | 2304-8158 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Foods |
| spelling | doaj-art-63e7b83be14f47ac9169c4b05fc99e532025-08-20T03:14:35ZengMDPI AGFoods2304-81582025-05-011410167210.3390/foods14101672Characterization of Okra Seed Protein/Rutin Covalent Complex and Its Application in NanoemulsionsChengyun He0Lu Bai1Yingxuan Zhou2Benguo Liu3Sheng Geng4School of Food Science, Henan Institute of Science and Technology, Xinxiang 453003, ChinaSchool of Food Science, Henan Institute of Science and Technology, Xinxiang 453003, ChinaSchool of Food Science, Henan Institute of Science and Technology, Xinxiang 453003, ChinaSchool of Food Science, Henan Institute of Science and Technology, Xinxiang 453003, ChinaSchool of Food Science, Henan Institute of Science and Technology, Xinxiang 453003, ChinaA covalent complex of okra seed protein (OSP) and rutin was prepared using the alkali-induced method and characterized. Its application in nanoemulsions was also evaluated. Multi-spectral analysis confirmed the formation of the covalent complex, with OSP as the main body. With an increasing rutin dosage during the preparation process, the amount of rutin in the complex progressively ascended, and the α-helix structure and surface hydrophobicity of the complex gradually declined. The complex exhibited remarkable ABTS radical scavenging capacity and reducing power, which were proportional to the total phenolic content. The OSP/rutin complex could be utilized for the fabrication of O/W nanoemulsions, which remained stable in terms of droplet size and appearance after 28 days of storage at both 4 °C and 25 °C. Furthermore, lipid oxidation in the nanoemulsion stabilized by the OSP/rutin covalent complex could be effectively inhibited, and the emulsion could enhance the UV irradiation resistance of lutein loaded in the oil phase. Our results can provide a reference for the development of protein–polyphenol covalent complexes.https://www.mdpi.com/2304-8158/14/10/1672okra seed proteinrutincovalent complexnanoemulsion |
| spellingShingle | Chengyun He Lu Bai Yingxuan Zhou Benguo Liu Sheng Geng Characterization of Okra Seed Protein/Rutin Covalent Complex and Its Application in Nanoemulsions Foods okra seed protein rutin covalent complex nanoemulsion |
| title | Characterization of Okra Seed Protein/Rutin Covalent Complex and Its Application in Nanoemulsions |
| title_full | Characterization of Okra Seed Protein/Rutin Covalent Complex and Its Application in Nanoemulsions |
| title_fullStr | Characterization of Okra Seed Protein/Rutin Covalent Complex and Its Application in Nanoemulsions |
| title_full_unstemmed | Characterization of Okra Seed Protein/Rutin Covalent Complex and Its Application in Nanoemulsions |
| title_short | Characterization of Okra Seed Protein/Rutin Covalent Complex and Its Application in Nanoemulsions |
| title_sort | characterization of okra seed protein rutin covalent complex and its application in nanoemulsions |
| topic | okra seed protein rutin covalent complex nanoemulsion |
| url | https://www.mdpi.com/2304-8158/14/10/1672 |
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