Beta
338715

Copper Gelled Chitosan: a Promising Material for Packaging Applications

Article

Last updated: 01 Jan 2025

Subjects

-

Tags

Material science

Abstract

Both copper (Cu) and chitosan (CSN) are known for their antimicrobial traits. Hence, copper gelled chitosan (Cu-G-CSN) films were prepared in order to be utilized in packaging applications. Initially, the CSN solution was frozen and then the gelling Cu solution was placed over it. The slow diffusion of Cu into the solid frozen CSN would slow the rate of the Cu induced CSN gelation. Slow gelation was formerly shown to create more mechanically stable gels that exhibit more homogeneity. The homogeneity of the newly formed Cu-G-CSN elevated its barrier traits against water diffusion and inhibited the films swelling. Actually, no swelling and no significant weight alterations (p value>0.05) were observed in the Cu-G-CSN samples, which were gelled with 0.5-2% CuSO4, after their immersion in distilled water for 48h at 37°C. The Cu-G-CSN films also offered considerable mechanical stability where a 12.84±0.55MPa tensile strength and 31.86±3.05% elongation percent were recorded for the films gelled with 0.5% CuSO4. The newly formed Cu-G-CSN films were also characterized via UV-visible spectroscopic analysis and scan electron microscopy. Moreover, the antimicrobial traits of the Cu-G-CSN films were proven. All the tested Cu-G-CSN films exhibited antimicrobial activities against both Staphylococcus aureus and Candida albicans. These antimicrobial activities increased gradually upon increasing the concentration of the CuSO4 in the gelling solution from 0.2 to 2%. The 2% CuSO4 gelled films induced inhibition zones of 40 and 40.5 mm in case of S. aureus and C. albicans, respectively.

DOI

10.21608/ejchem.2024.257256.9015

Keywords

Chitosan, copper sulfate, packaging, Antimicrobial

Authors

First Name

Marwa

Last Name

Wahba

MiddleName

-

Affiliation

Department of chemistry of natural and microbial products, national research centre, egypt

Email

drmarwawahba@yahoo.com

City

Cairo

Orcid

0000-0001-5239-1400

First Name

Ghada

Last Name

Awad

MiddleName

-

Affiliation

Pharmaceutical and Drug Industries Research division

Email

ghadaawad18@yahoo.com

City

-

Orcid

-

Volume

67

Article Issue

13

Related Issue

46555

Issue Date

2024-12-01

Receive Date

2023-12-22

Publish Date

2024-12-01

Page Start

59

Page End

66

Print ISSN

0449-2285

Online ISSN

2357-0245

Link

https://ejchem.journals.ekb.eg/article_338715.html

Detail API

https://ejchem.journals.ekb.eg/service?article_code=338715

Order

338,715

Type

Original Article

Type Code

297

Publication Type

Journal

Publication Title

Egyptian Journal of Chemistry

Publication Link

https://ejchem.journals.ekb.eg/

MainTitle

Copper Gelled Chitosan: a Promising Material for Packaging Applications

Details

Type

Article

Created At

30 Dec 2024