Journal
JOURNAL OF FOOD ENGINEERING
Volume 247, Issue -, Pages 9-18Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jfoodeng.2018.11.021
Keywords
Zein; alpha-Tocopherol; Resveratrol; Co-encapsulation; Antioxidant activity; Stability
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Funding
- National Natural Science Foundation of China (NSFC) [31571781]
- national first-class discipline program of Food Science and Technology [JUFSTI201801]
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Simultaneous administration of multiple bioactive components might produce synergistic effect and offer multiple health benefits. This provides motivation to develop co-delivery system that can simultaneously encapsulate a plurality of bioactive components. In this study, alpha-tocopherol and resveratrol with different solubility were successfully encapsulated into zein nanoparticles. Encapsulation efficiency of alpha-tocopherol and resveratrol reached 96% and 67%, respectively. Size and zeta-potential of zein particles varied from 80 to 122 nm and +27 to +60 mV, respectively. Resveratrol was encapsulated at the portion between the hydrophobic core and the surface of zein particles. About 47% of alpha-tocopherol and 80% of resveratrol were found in the zein particles when stored at 45 degrees C for up to 84 days. alpha-Tocopherol- and resveratrol-loaded zein particles provided a better protective effect on alpha-tocopherol than did alpha-tocopherol-loaded zein particles and eliminated negative effect of alpha-tocopherol on the stability of resveratrol. These results might be useful for the design of a delivery system for the co-encapsulation of several nutrients with different solubilities.
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