期刊
FOOD CHEMISTRY
卷 372, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2021.131221
关键词
Pimenta dioica essential oil; Nanoencapsulation; Antifungal; Antiaflatoxigenic; Safety profile; Food preservative
资金
- Council of Scientific and Industrial Research (CSIR), New Delhi, India [09/013 (0678) /2017-EMR-I]
This research successfully enhanced stability and bio-efficacy of Pimenta dioica essential oil by encapsulating it in chitosan nanoemulsion. The nanoemulsion showed high encapsulation efficiency, effective antifungal and antiaflatoxigenic activity, and preserved model food from contamination without altering sensory properties. Overall, CN-PDEO can be recommended for extending the shelf-life of stored maize and other food commodities.
The direct incorporation of essential oils (EOs) into real food system faces numerous challenges due to high volatility, intense aroma, and instability. This research aimed to enhance the stability and bio-efficacy of Pimenta dioica essential oil (PDEO) through encapsulation in chitosan (CN) nanoemulsion. The nanoemulsion (CN-PDEO) was fabricated through ionic-gelation technique. CN-PDEO exhibited high nanoencapsulation efficiency (85.84%) and loading capacity (8.26%) with the particle size ranging between 18.53 and 70.56 nm. Bio-efficacy assessment results showed that CN-PDEO presented more effective antifungal and antiaflatoxigenic activity against Aspergillus flavus (AF-LHP-VS8) at lower doses (1.6 and 1.0 mu L/mL) than the pure PDEO (2.5 and 1.5 mu L/mL, respectively, p < 0.05). Additionally, CN-PDEO preserved model food (maize) from aflatoxin B-1 and lipid peroxidation without altering their sensory properties during storage with high safety profile (p < 0.05). Overall results concluded that CN-PDEO can be recommended for shelf-life extension of stored maize and other food commodities.
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