期刊
INNOVATIVE FOOD SCIENCE & EMERGING TECHNOLOGIES
卷 81, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ifset.2022.103136
关键词
Plant -dairy protein mixtures; Pea protein; Whey protein; Interfacial behavior; Food emulsions; Oil -water interface
资金
- Danish Milk Levy Fund (PROFLEX project)
- Arla Food Ingredients
- Center for Innovative Food (CiFOOD) at Aarhus University
The aim of this study was to investigate the dynamics occurring at the oil-water interface in systems containing mixtures of pea and whey protein isolates, and compare the differences between simultaneous and sequential adsorption. The results showed that different emulsion properties could be achieved by fine-tuning the interfacial composition.
Due to the growing interest in creating mixed plant-dairy protein emulsion-based foods, it is important to understand how to include plant-dairy protein mixes in existing and new formulations. The aim of this work was to study the dynamics occurring at the oil-water interface in systems containing mixtures of pea and whey protein isolates. By using drop tensiometry combined with bulk-phase exchange, we compared the interfacial dynamics and viscoelastic properties of plant-dairy protein interfaces formed through simultaneous or sequential adsorption. Differences in the adsorption isotherm and interfacial behaviors suggest different interfacial structures for simultaneous and sequential addition. These results were supported by changes in the interfacial composition observed in bulk emulsions. Bulk emulsions prepared with simultaneous adsorption of whey and pea protein isolate showed the lowest creaming stability. The results show how different emulsion properties can be achieved using the same protein mixtures by fine tuning their interfacial composition to reach maximum product functionality.
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