Nanocomposite Zinc Oxide-Chitosan Coatings on Polyethylene Films for Extending Storage Life of Okra (Abelmoschus esculentus)
Efficiency of nanocomposite zinc oxide-chitosan antimicrobial polyethylene packaging films for the preservation of quality of vegetables was studied using okra Abelmoschus esculentus. Low density polyethylene films (LDPE) coated with chitosan-ZnO nanocomposites were used for packaging of okra sample...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2018-06-01
|
| Series: | Nanomaterials |
| Subjects: | |
| Online Access: | http://www.mdpi.com/2079-4991/8/7/479 |
| _version_ | 1828406790468927488 |
|---|---|
| author | Laila Al-Naamani Joydeep Dutta Sergey Dobretsov |
| author_facet | Laila Al-Naamani Joydeep Dutta Sergey Dobretsov |
| author_sort | Laila Al-Naamani |
| collection | DOAJ |
| description | Efficiency of nanocomposite zinc oxide-chitosan antimicrobial polyethylene packaging films for the preservation of quality of vegetables was studied using okra Abelmoschus esculentus. Low density polyethylene films (LDPE) coated with chitosan-ZnO nanocomposites were used for packaging of okra samples stored at room temperature (25 °C). Compared to the control sample (no coating), the total bacterial concentrations in the case of chitosan and nanocomposite coatings were reduced by 53% and 63%, respectively. The nanocomposite coating showed a 2-fold reduction in total fungal concentrations in comparison to the chitosan treated samples. Results demonstrate the effectiveness of the nanocomposite coatings for the reduction of fungal and bacterial growth in the okra samples after 12 storage days. The nanocomposite coatings did not affect the quality attributes of the okra, such as pH, total soluble solids, moisture content, and weight loss. This work demonstrates that the chitosan-ZnO nanocomposite coatings not only maintains the quality of the packed okra but also retards microbial and fungal growth. Thus, chitosan-ZnO nanocomposite coating can be used as a potential coating material for active food packaging applications. |
| first_indexed | 2024-12-10T11:16:49Z |
| format | Article |
| id | doaj.art-7d3e68a95ce94214b41a7b9a0ae62df0 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-12-10T11:16:49Z |
| publishDate | 2018-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-7d3e68a95ce94214b41a7b9a0ae62df02022-12-22T01:51:09ZengMDPI AGNanomaterials2079-49912018-06-018747910.3390/nano8070479nano8070479Nanocomposite Zinc Oxide-Chitosan Coatings on Polyethylene Films for Extending Storage Life of Okra (Abelmoschus esculentus)Laila Al-Naamani0Joydeep Dutta1Sergey Dobretsov2Department of Marine Science and Fisheries, Sultan Qaboos University, PO Box 34, Al-Khoud, 123 Muscat, OmanFunctional Materials, Applied Physics Department, SCI School, KTH Royal Institute of Technology, Kista, SE-164 40 Stockholm, SwedenDepartment of Marine Science and Fisheries, Sultan Qaboos University, PO Box 34, Al-Khoud, 123 Muscat, OmanEfficiency of nanocomposite zinc oxide-chitosan antimicrobial polyethylene packaging films for the preservation of quality of vegetables was studied using okra Abelmoschus esculentus. Low density polyethylene films (LDPE) coated with chitosan-ZnO nanocomposites were used for packaging of okra samples stored at room temperature (25 °C). Compared to the control sample (no coating), the total bacterial concentrations in the case of chitosan and nanocomposite coatings were reduced by 53% and 63%, respectively. The nanocomposite coating showed a 2-fold reduction in total fungal concentrations in comparison to the chitosan treated samples. Results demonstrate the effectiveness of the nanocomposite coatings for the reduction of fungal and bacterial growth in the okra samples after 12 storage days. The nanocomposite coatings did not affect the quality attributes of the okra, such as pH, total soluble solids, moisture content, and weight loss. This work demonstrates that the chitosan-ZnO nanocomposite coatings not only maintains the quality of the packed okra but also retards microbial and fungal growth. Thus, chitosan-ZnO nanocomposite coating can be used as a potential coating material for active food packaging applications.http://www.mdpi.com/2079-4991/8/7/479ZnO nanoparticlenanocomposite coatingchitosanantimicrobialactive food packaging |
| spellingShingle | Laila Al-Naamani Joydeep Dutta Sergey Dobretsov Nanocomposite Zinc Oxide-Chitosan Coatings on Polyethylene Films for Extending Storage Life of Okra (Abelmoschus esculentus) Nanomaterials ZnO nanoparticle nanocomposite coating chitosan antimicrobial active food packaging |
| title | Nanocomposite Zinc Oxide-Chitosan Coatings on Polyethylene Films for Extending Storage Life of Okra (Abelmoschus esculentus) |
| title_full | Nanocomposite Zinc Oxide-Chitosan Coatings on Polyethylene Films for Extending Storage Life of Okra (Abelmoschus esculentus) |
| title_fullStr | Nanocomposite Zinc Oxide-Chitosan Coatings on Polyethylene Films for Extending Storage Life of Okra (Abelmoschus esculentus) |
| title_full_unstemmed | Nanocomposite Zinc Oxide-Chitosan Coatings on Polyethylene Films for Extending Storage Life of Okra (Abelmoschus esculentus) |
| title_short | Nanocomposite Zinc Oxide-Chitosan Coatings on Polyethylene Films for Extending Storage Life of Okra (Abelmoschus esculentus) |
| title_sort | nanocomposite zinc oxide chitosan coatings on polyethylene films for extending storage life of okra abelmoschus esculentus |
| topic | ZnO nanoparticle nanocomposite coating chitosan antimicrobial active food packaging |
| url | http://www.mdpi.com/2079-4991/8/7/479 |
| work_keys_str_mv | AT lailaalnaamani nanocompositezincoxidechitosancoatingsonpolyethylenefilmsforextendingstoragelifeofokraabelmoschusesculentus AT joydeepdutta nanocompositezincoxidechitosancoatingsonpolyethylenefilmsforextendingstoragelifeofokraabelmoschusesculentus AT sergeydobretsov nanocompositezincoxidechitosancoatingsonpolyethylenefilmsforextendingstoragelifeofokraabelmoschusesculentus |