期刊
LWT-FOOD SCIENCE AND TECHNOLOGY
卷 138, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.lwt.2020.110644
关键词
Black bean protein; Nanocomplex; Protein-quercetin interaction; Perilla oil emulsion; In vitro gastrointestinal digestion
资金
- National Natural Science Foundation of China [31801579]
- Excellent Youth Natural Science Foundation of Heilongjiang Province of China [JC2018009]
- Natural Science Foundation of Heilongjiang Province of China [LH 2019C032]
An oil-in-water emulsion stabilized by a protein-based nanocomplex was developed for the co-delivery of quercetin and perilla oil. The BBP-Q3 nanocomplex-stabilized emulsion exhibited smaller particle size, lower viscosity, better emulsifying properties, and reduced release of Q and perilla oil during digestion, making it an effective O/W stabilizer for encapsulating polyphenols and oils in emulsions.
An oil-in-water (O/W) emulsion stabilized by a protein-based nanocomplex was developed for the co-delivery of quercetin (Q) and perilla oil. Several nanocomplexes, synthesized by exploiting noncovalent interactions between black bean protein (BBP) and Q, were evaluated using fluorescence and Fourier-transform infrared (FTIR) spectroscopies. Thermodynamic analysis (Delta H > 0, Delta S > 0) indicated that the interactions between BBP and Q were mainly hydrophobic in nature, and FTIR spectroscopy suggested that the BBP-Q complexes, particularly BBP-Q3 (BBP:Q = 10:1, v/v), contained several alpha-helix structures and many beta-sheet secondary structures. Compared with the emulsion stabilized by BBP alone, the BBP-Q3-nanocomplex-stabilized O/W emulsion featured a smaller particle size (278.7 nm), lower viscosity, better emulsifying properties, and significantly reduced Q and perilla oil release during gastrointestinal digestion. These findings indicate that BBP-Q nano-complexes can act as effective O/W stabilizers for the co-encapsulation of polyphenols and oils in emulsions.
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