期刊
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
卷 222, 期 -, 页码 1633-1641出版社
ELSEVIER
DOI: 10.1016/j.ijbiomac.2022.10.098
关键词
Ovalbumin; Tannic acid; High internal phase Pickering emulsion; Plant oil; Unsaturated fatty acids; Stabilization
资金
- National Natural Science Foundation of China
- [31701624]
This study investigated the effects of four plant-based oils on the interfacial stability of protein-stabilized high internal phase Pickering emulsions (HIPEs). The results showed that the physicochemical properties of the oil phase were closely related to the interfacial activities. HIPEs stabilized by ovalbumin-tannic acid complex exhibited excellent emulsifying stability.
The poor interfacial stability of protein-stabilized high internal phase Pickering emulsions (HIPEs) is a major hurdle to realize their practical applications in food processing. The emulsifying stability is not only related to the protein itself, but also dependent upon the oil phases. In this study, four plant-based oils were studied to understand their respective effects on the interfacial stability of HIPEs prepared by ovalbumin (OVA) and ovalbumin-tannic acid complex (OVA-TA). Our findings revealed that the interfacial activities were closely related to the physicochemical properties of the oil phase, such as the number of carbon-carbon double bonds in the unsaturated fatty acids, melting point, and polarity. The emulsifying abilities were ranked as palm oil > soybean oil > olive oil > perilla oil. OVA-TA stabilized HIPEs exhibited excellent emulsifying stability compared with free OVA stabilized ones. This work provided a unique insight into understanding the interfacial stabilization mechanisms for protein-stabilized HIPEs with different kinds of oil phases.
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