期刊
FOOD CHEMISTRY
卷 366, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2021.130602
关键词
Interaction mechanism; Delivery system; Digestion; Bioaccessibility; Nutraceuticals
资金
- National Natural Science Foundation of China [31972976]
The study investigated the effect of CA on WPI, showing that the WPI/CA complex can act as a stabilizer to form emulsions and emulsion gels for better protection and enhanced bioaccessibility of beta-carotene. The findings provide insights into developing new multifunctional food ingredients and improving protein modification in food systems.
The effect of cinnamaldehyde (CA) on the structure and properties of whey protein isolate (WPI) was investigated. The resultant WPI/CA complex was used as stabilizer to form emulsions and emulsion gels, which were used for the delivery and protection of beta-carotene. The particle size and hydrophobicity of WPI solution increased and then decreased with the addition of CA. Circular dichroism showed that CA mainly changed the secondary structure of WPI, with increasing beta-fold content from 47.2% to 72.9%. The fluorescence spectra showed that both tryptophan and tyrosine in WPI were involved in the interaction with CA. WPI/CA complex as the stabilizer could form the stable emulsions and emulsion gels, which showed better protection effect on beta-carotene, and helped enhance its bioaccessibility. The knowledge provides insights into the development of new multifunctional food ingredients and the enhancement of protein modification in food system.
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