Development and Characterization of Novel Active Chitosan Films Containing Fennel and Peppermint Essential Oils
Abstract
:1. Introduction
2. Materials and Methods
2.1. Materials
2.2. Preparation of Chitosan Films
2.3. Film Thickness and Density
2.4. Water Swelling Assay
2.5. Water Solubility Assay
2.6. Moisture Content Assay
2.7. Film Color Assay
2.8. Fourier Transform Infrared Spectroscopy (FTIR) Assay
2.9. Thermal Stability Assay
2.10. Environmental Scanning Electron Microscopy (ESEM)
2.11. Antioxidant Activity Assay
2.12. Statistical Analysis
3. Results and Discussions
3.1. Film Thickness and Density
3.2. Film Moisture Content, Water Swelling, and Solubility
3.3. Film Color Properties
3.4. FTIR Analysis
3.5. DSC Analysis
3.6. Microstructure Analysis
3.7. Antioxidant Analysis
4. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
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Films | Film Thickness (mm) | Density (g/cm−3) |
---|---|---|
Chitosan | 0.0696 ± 0.0016 | 0.0993 ± 0.0011 |
Chitosan-FEO | 0.0679 ± 0.0009 | 0.1041 ± 0.0008 |
Chitosan-PEO | 0.0686 ± 0.0011 | 0.102 ± 0.002 |
Chitosan-F/P | 0.0699 ± 0.0011 | 0.1027 ± 0.0003 |
Films | Moisture Content (%) | Water Swelling (%) | Water Solubility (%) |
---|---|---|---|
Chitosan | 17.2 ± 0.2 a | 660.8 ± 0.2 a | 27.80 ± 0.14 a |
Chitosan-FEO | 16.34 ± 0.03 b | 365..83 ± 0.17 c | 21 ± 3 b |
Chitosan-PEO | 17.2 ± 0.5 a | 431 ± 6 b | 22 ± 3 b |
Chitosan-F/P | 15.46 ± 0.11 c | 312 ± 2 d | 21.0 ± 0.2 b |
Films | L | a | b | ΔE | WI |
---|---|---|---|---|---|
Chitosan | 71.78 ± 0.01 c | −0.190 ± 0.001 c | 3.45 ± 0.01 c | 71.86 ± 0.01 d | 71.57 ± 0.01 d |
Chitosan-FEO | 76.26 ± 0.13 b | −0.16 ± 0.01 b | 4.62 ± 0.02 b | 76.40 ± 0.13 c | 75.81 ± 0.13 b |
Chitosan-PEO | 76.43 ± 0.01 a | −1.08 ± 0.01 d | 9.44 ± 0.01 a | 77.02 ± 0.01 a | 74.59 ± 0.01 c |
Chitosan-F/P | 76.46 ± 0.03 a | 0.37 ± 0.01 a | 4.61 ± 0.01 b | 76.60 ± 0.03 b | 76.01 ± 0.03 a |
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Liu, T.; Wang, J.; Chi, F.; Tan, Z.; Liu, L. Development and Characterization of Novel Active Chitosan Films Containing Fennel and Peppermint Essential Oils. Coatings 2020, 10, 936. https://doi.org/10.3390/coatings10100936
Liu T, Wang J, Chi F, Tan Z, Liu L. Development and Characterization of Novel Active Chitosan Films Containing Fennel and Peppermint Essential Oils. Coatings. 2020; 10(10):936. https://doi.org/10.3390/coatings10100936
Chicago/Turabian StyleLiu, Ting, Jingfan Wang, Fumin Chi, Zhankun Tan, and Liu Liu. 2020. "Development and Characterization of Novel Active Chitosan Films Containing Fennel and Peppermint Essential Oils" Coatings 10, no. 10: 936. https://doi.org/10.3390/coatings10100936