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- Title
Preparation and Characterization of Cinnamomum Essential Oil–Chitosan Nanocomposites: Physical, Structural, and Antioxidant Activities.
- Authors
Su, Hongxia; Huang, Chongxing; Liu, Ying; Kong, Song; Wang, Jian; Huang, Haohe; Zhang, Bobo
- Abstract
In this study, different amounts of cinnamomum essential oil (CEO) were encapsulated in chitosan nanoparticles (NPs) (CS-NPs) through oil-in-water emulsification and ionic gelation. An ultraviolet-visible spectrophotometer, Fourier-transform infrared spectroscopy, synchronous thermal analysis, and X-ray diffraction were employed to analyze the CEO encapsulation. As observed by field-emission scanning electron microscopy, NP size analysis and zeta potential, the prepared CS-NPs, containing CEO (CS-CEO), were spherical with uniformly distributed sizes (diameters: 190–340 nm). The ranges of encapsulation efficiency (EE) and loading capacity (LC) were 4.6–32.9% and 0.9–10.4%, with variations in the starting weight ratio of CEO to CS from 0.11 to 0.53 (w/w). It was also found that the antioxidant activity of the CS-NPs loaded with CEO increased as the EE increased. The active ingredients of the CEO were prevented from being volatilized, significantly improving the chemical stability. The antioxidant activity of CS-CEO was higher than that of the free CEO. These results indicate the promising potential of CS-CEO as an antioxidant for food processing, and packaging applications.
- Subjects
NANOCOMPOSITE materials; CINNAMOMUM; UBIQUINONES; SCANNING electron microscopy; ESSENTIAL oils; INFRARED spectroscopy; ZETA potential
- Publication
Processes, 2020, Vol 8, Issue 7, p834
- ISSN
2227-9717
- Publication type
Article
- DOI
10.3390/pr8070834