期刊
CRYSTALS
卷 12, 期 5, 页码 -出版社
MDPI
DOI: 10.3390/cryst12050622
关键词
pomegranate peel; encapsulation; W-1; O; W-2 nanoemulsion; phenolic compounds; physical stability; carboxymethyl cellulose
资金
- Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia [PNURSP2022R249]
- Taif University, Taif, Saudi Arabia [TURSP-2020/117]
This study aimed to prepare double nanoemulsions loaded with phenolic-rich extract from pomegranate peel. The results showed that the emulsions exhibited good physical stability, with the addition of CMC improving their storage stability. These findings provide valuable information for the development of polyphenol-enriched functional foods.
Pomegranate peel enriched with high value of bioactive phenolics with valuable health benefits. However, after extraction of the phenolic compounds, diverse factors can affect their stability. Therefore, we, herein, aimed to prepare W-1/O/W-2 double nanoemulsions loaded with phenolic-rich extract from pomegranate peel in the W-1 phase. Double emulsions were fabricate during a two-step emulsification technique. Furthermore, the influence of sodium carboxymethyl cellulose (CMC) in the outer aqueous phase was also investigated. We found that W-1/O/W-2 emulsions containing phenolic-rich extract showed good physical stability, especially in the particle size, polydispersity index, zeta potential, and creaming index. Intriguingly, high encapsulation rates of pomegranate polyphenols >95% were achieved; however, emulsion with CMC had the best encapsulation stability during storage. Thus, our study provides helpful information about the double nanoemulsions delivery system for polyphenols generated from pomegranate peel, which may lead to the development of innovative polyphenol-enriched functional foods.
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