期刊
FOOD RESEARCH INTERNATIONAL
卷 161, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.foodres.2022.111815
关键词
Microalgae; Spirulina platensis; Pickering emulsion; Interfacial adsorption; Nanoparticle; Bulk aggregation; Supported interface; Recoverability
资金
- National Natural Science Foundation of China
- Jiangsu Province Science and Technology Plan Project
- [31772008]
- [BE2019369]
In this study, food-grade Spirulina platensis protein Pickering nanoparticles were successfully prepared using a simple method. The nanoparticles exhibited excellent stability in emulsions, and their concentration and oil phase fraction played a crucial role in enhancing emulsion stability. The presence of supported interfaces and regular polygonal shape deformations significantly influenced the stability of emulsions.
In this paper, novel food-grade Spirulina platensis protein (SPP) Pickering nanoparticles were obtained using a facile top-down approach of heat-set protein gel formation followed by controlled shearing and high-pressure homogenization. Results showed that nanoparticles not only adsorbed on the surface of oil droplets but also formed aggregation networks in continuous phases by varying nanoparticle concentration (c, 0.5-2 wt%) and oil phase fraction (phi, 30-65 wt%), which had a positive effect on the stability. Supported interfaces and regular polygonal shape deformations were observed in the micromorphology of emulsions when phi exceeded 50 wt%, becoming the more decisive factor of emulsion stability. And there was a significant positive correlation between phi and the recovery rate. Pickering emulsion with 30 wt% phi, stabilized by nanoparticle adsorption and aggregation network without the shared interface, had a recovery rate of 6.57-39.77% for the destroyed aggregation network after suffering 100% strain. While phi increased to 50 wt% or more, emulsions behaved recoverable at a rate of 56.69-73.86% for supported interfaces regardless of broken nanoparticle aggregation networks. Findings from this study on SPP nanoparticles and emulsions were of great significance for the utilization of sustainable microalgae protein in the food industry and would open avenues for rational designing of novel plant-based products in the future.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据