Stability of oil-in-water emulsions improved by ovalbumin-procyanidins mixture: A promising substrate with emulsifying and antioxidant activity
Colloids and Surfaces B: Biointerfaces, ISSN: 0927-7765, Vol: 215, Page: 112473
2022
- 18Citations
- 13Captures
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Metrics Details
- Citations18
- Citation Indexes18
- 18
- CrossRef5
- Captures13
- Readers13
- 13
Article Description
The aim of this study is to develop a dual-functional ingredient with antioxidant activity and emulsification. The emulsion stability of ovalbumin (OVA) was improved by procyanidins (PC). The interactions between OVA and PC were investigated using multi-spectroscopy and molecular docking. Furthermore, the effect of the addition of the OVA-PC mixture on emulsion stability was evaluated as well. The fluorescence results showed that the quenching mechanism of PC to OVA's endogenous fluorescence was static quenching, and the binding ratio of OVA and PC was 1:1. Circular dichroism (CD) and Fourier Transform Infrared Spectrometer (FT-IR) showed that the addition of PC promoted the unfolding of OVA, and transformed the secondary structure of OVA from α-helix to β-sheet. The main driving force of OVA and PC was hydrogen bonding, according to molecular docking analysis. Among all the samples, the stability of the emulsion of OVA-PC at a ratio of 1:30 exhibited extremely high stability and the smallest particle size. In comparison with individual OVA emulsions, the OVA-PC emulsions had excellent physical stabilities. Meanwhile, the oxidation degree of protein and oil for the OVA-PC emulsions was lower than that of the native OVA emulsion after 8-day storage. Our work provides important insights for understanding the interaction between OVA and expanding the application of OVA-PC.
Bibliographic Details
http://www.sciencedirect.com/science/article/pii/S0927776522001564; http://dx.doi.org/10.1016/j.colsurfb.2022.112473; http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85127235198&origin=inward; http://www.ncbi.nlm.nih.gov/pubmed/35367745; https://linkinghub.elsevier.com/retrieve/pii/S0927776522001564; https://dx.doi.org/10.1016/j.colsurfb.2022.112473
Elsevier BV
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