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Biodegradable κ-carrageenan/nanoclay nanocomposite films containing Rosmarinus officinalis L. extract for improved strength and antibacterial performance.
Int J Biol Macromol. 2018 Aug; 115:227-235.IJ

Abstract

In this study, biodegradable κ-carrageenan films containing 3% nanoclay and different amounts of rosemary extract (1, 2 and 3% v/v) were fabricated and their physical, thermal, and mechanical properties, as well as antimicrobial activity were examined. The film thickness did not change significantly by the addition of rosemary extract. UV light transmission value in the control film was 20.46%, while the value for the film with 3% v/v rosmary extract reduced to 0.13%. Elongation at break (EB%) and tensile strength (TS) of the carrageenan film without the extract were 19.07% and 15.96MPa, respectively, while after adding 3% v/v of rosemary extract, the EB and TS were increased to 27.17% and 30.77MPa, respectively. Incorporation of rosemary extract greatly reduced water vapor permeability (WVP) (5.27×10-10g/m·s·Pa in control film vs 2.14×10-10g/m·s·Pa in the film containing 3% v/v rosemary extract). More importantly, the carrageenan film with 3% extract displayed >99% inhibition against B. cereus, E. coli, P. aeruginosa, and S. aureus compared with the control film. The present study showed that rosemary extract is an excellent additive to enhance the mechanical strength and antibacterial activity of carrageenan films and can be used for active packing in food packing industry.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Nouri A
Department of Chemical Engineering, University of Mohaghegh Ardabili, Ardabil, Iran.
Tavakkoli Yaraki M
Department of Chemical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran 15875-4413, Iran; Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive, Singapore 117585, Singapore(1).
Ghorbanpour M
Department of Chemical Engineering, University of Mohaghegh Ardabili, Ardabil, Iran. Electronic address: Ghorbanpour@uma.ac.ir.
Wang S
Department of Chemical Engineering, Curtin University, GPO Box U1987, Perth, WA 6845, Australia. Electronic address: shaobin.wang@curtin.edu.au.

MeSH

Aluminum SilicatesAnti-Bacterial AgentsCarrageenanClayColorMechanical PhenomenaNanocompositesOptical PhenomenaPermeabilityPlant ExtractsRosmarinusSteam

Pub Type(s)

Journal Article

Language

eng

PubMed ID

29660461

Citation

Nouri, Afsaneh, et al. "Biodegradable Κ-carrageenan/nanoclay Nanocomposite Films Containing Rosmarinus Officinalis L. Extract for Improved Strength and Antibacterial Performance." International Journal of Biological Macromolecules, vol. 115, 2018, pp. 227-235.
Nouri A, Tavakkoli Yaraki M, Ghorbanpour M, et al. Biodegradable κ-carrageenan/nanoclay nanocomposite films containing Rosmarinus officinalis L. extract for improved strength and antibacterial performance. Int J Biol Macromol. 2018;115:227-235.
Nouri, A., Tavakkoli Yaraki, M., Ghorbanpour, M., & Wang, S. (2018). Biodegradable κ-carrageenan/nanoclay nanocomposite films containing Rosmarinus officinalis L. extract for improved strength and antibacterial performance. International Journal of Biological Macromolecules, 115, 227-235. https://doi.org/10.1016/j.ijbiomac.2018.04.051
Nouri A, et al. Biodegradable Κ-carrageenan/nanoclay Nanocomposite Films Containing Rosmarinus Officinalis L. Extract for Improved Strength and Antibacterial Performance. Int J Biol Macromol. 2018;115:227-235. PubMed PMID: 29660461.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Biodegradable κ-carrageenan/nanoclay nanocomposite films containing Rosmarinus officinalis L. extract for improved strength and antibacterial performance. AU - Nouri,Afsaneh, AU - Tavakkoli Yaraki,Mohammad, AU - Ghorbanpour,Mohammad, AU - Wang,Shaobin, Y1 - 2018/04/13/ PY - 2018/02/26/received PY - 2018/04/02/revised PY - 2018/04/10/accepted PY - 2018/4/17/pubmed PY - 2018/10/10/medline PY - 2018/4/17/entrez KW - Active packaging KW - Antibacterial film KW - Kappa-carrageenan KW - Nanoclay KW - Rosemary extract SP - 227 EP - 235 JF - International journal of biological macromolecules JO - Int J Biol Macromol VL - 115 N2 - In this study, biodegradable κ-carrageenan films containing 3% nanoclay and different amounts of rosemary extract (1, 2 and 3% v/v) were fabricated and their physical, thermal, and mechanical properties, as well as antimicrobial activity were examined. The film thickness did not change significantly by the addition of rosemary extract. UV light transmission value in the control film was 20.46%, while the value for the film with 3% v/v rosmary extract reduced to 0.13%. Elongation at break (EB%) and tensile strength (TS) of the carrageenan film without the extract were 19.07% and 15.96MPa, respectively, while after adding 3% v/v of rosemary extract, the EB and TS were increased to 27.17% and 30.77MPa, respectively. Incorporation of rosemary extract greatly reduced water vapor permeability (WVP) (5.27×10-10g/m·s·Pa in control film vs 2.14×10-10g/m·s·Pa in the film containing 3% v/v rosemary extract). More importantly, the carrageenan film with 3% extract displayed >99% inhibition against B. cereus, E. coli, P. aeruginosa, and S. aureus compared with the control film. The present study showed that rosemary extract is an excellent additive to enhance the mechanical strength and antibacterial activity of carrageenan films and can be used for active packing in food packing industry. SN - 1879-0003 UR - https://www.unboundmedicine.com/medline/citation/29660461/Biodegradable_��_carrageenan/nanoclay_nanocomposite_films_containing_Rosmarinus_officinalis_L__extract_for_improved_strength_and_antibacterial_performance_ DB - PRIME DP - Unbound Medicine ER -