Nanostructured chitosan/monolaurin film: Preparation, characterization and antimicrobial activity against Listeria monocytogenes on ultrafiltered white cheese

Date

2018-06-01

Author

Lotfi, Mohamad
Tajik, Hossein
Moradi, Mehran
Forough, Mehrdad
Divsalar, Elahe
Kuswandi, Bambang

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

145
views

0
downloads

Antimicrobial cellulose-chitosan (CC) films containing monolaurin (ML) (0.5 and 1%) were developed using the sol-gel method and characterized in terms of microscopic, structural, swelling, water solubility, and antimicrobial properties against Listeria monocytogenes in vitro and on ultrafiltered cheese during storage at 4 for 14 days. The results of antimicrobial activity revealed that the addition of ML significantly (p < 0.05) increased the diameter of the inhibition zone. Moreover, CC film did not show inhibitory activity on L. monocytogenes. Scanning electron microscope images showed zinc nanoparticle with the 20-100 nm size in the film. Moreover, Fourier-transform infrared spectroscopy analysis results confirmed successful introducing and binding of the ML in the double layer film. The addition of ML in CC film decreased the swelling index in a significant manner, whereas the solubility of the film increased. A significant increase in solubility with ML addition was also found for both CC incorporated ML films. The addition of 0.5 and 1% ML into CC films made a 2.4-2.3 log reduction in L. monocytogenes population on cheese after 14 days. The results revealed a suitable antibacterial activity of monolaurin incorporated CC film, which is applicable for use as cheese packaging to control L. monocytogenes.

Subject Keywords

Active packaging, Antibacterial, Cheese, Monolaurin, Sol-gel

URI

https://hdl.handle.net/11511/90416

Journal

LWT-FOOD SCIENCE AND TECHNOLOGY

DOI

https://doi.org/10.1016/j.lwt.2018.03.020

Collections

Department of Chemistry, Article

Suggestions

OpenMETU
Core

Ethylene and acetaldehyde production by selective oxidation of ethanol using mesoporous V-MCM-41 catalysts Gucbilmez, Yesim; Doğu, Timur; Balci, Suna (2006-05-10) Vanadium-incorporated MCM-41 type catalytic materials, which were synthesized by a direct hydrothermal synthesis procedure, showed very high activity and high selectivity in the production of ethylene from ethanol in an oxidative process. Ethylene selectivity showed a significant increase with an increase in temperature over 300 degrees C, while relatively high acetaldehyde selectivities were observed at lower temperatures. An ethylene yield value of 0.66 obtained at 400 degrees C with an O-2/ethanol feed r...
Novel poly(2,5-dithienylpyrrole) (PSNS) derivatives functionalized with azobenzene, coumarin and fluorescein chromophore units: spectroelectrochemical properties and electrochromic device applications Yigit, Deniz; Hacioglu, Serife O.; GÜLLÜ, Mustafa; Toppare, Levent Kamil (2015-01-01) Three novel 2,5-dithienylpyrrole (SNS) derivatives containing strong chromophore units such as azobenzene, coumarin and fluorescein were synthesized to investigate the effects of chromophore substituents on the electrochemical and spectroelectrochemical properties of resulting polymers. Electrochemical and optoelectronic characteristics of the homopolymers, poly(1-(2-(4-(phenyldiazenyl)phenoxy)ethyl)-2,5di(thiophen-2-yl)-1H-pyrrole) (PTPTAz), poly(4-(2-(2,5-di(thiophen-2-yl)-1H-pyrrol-1-yl)ethoxy)-2H-chrome...
Nanoceria supported palladium(0) nanoparticles: Superb catalyst in dehydrogenation of formic acid at room temperature Akbayrak, Serdar; TONBUL, YALÇIN; Özkar, Saim (Elsevier BV, 2017-06-05) Highly efficient dehydrogenation of formic acid (FA) at room temperature was achieved using palladium(0) nanoparticles supported on nanoceria (Pd-0/CeO2) as catalysts. Pd-0/CeO2 was prepared by impregnation of palladium(II) ions on the surface of ceria followed by their reduction with sodium borohydride in aqueous solution at room temperature. Pd((0)/CeO2 was isolated from the reaction solution by centrifugation and characterized by a combination of advanced analytical techniques. The catalytic activity of ...
Poly(hydroxybutyrate-co-hydroxyvalerate) nanocapsules as enzyme carriers for cancer therapy: an in vitro study Baran, ET; Ozer, N; Hasırcı, Vasıf Nejat (2002-05-01) In the present paper, poly(3-hydroxybutyrate-co-3-hydroxyvalerate) nanocapsules were prepared by a double emulsion-solvent evaporation procedure (w/o/w) for the encapsulation of model enzymes (L-asparaginase, catalase, glucose oxidase) and bovine serum albumin. To increase the encapsulation efficiency and activity of the encapsulated enzyme, numerous modifications were made in the compositions of the phases of double emulsion. For the preparation of low molecular weight PHBV, the polymer was treated with so...
Covalent immobilization of invertase on chemically activated poly (styrene-2-hydroxyethyl methacrylate) microbeads ALTINOK, HAYDAR; AKSOY, SERPİL; TÜMTÜRK, HAYRETTİN; Hasırcı, Nesrin (2008-06-01) A carrier for invertase enzyme was synthesized from styrene (S) and 2- hydroxyethyl methacrylate (HEMA) in the form of microbeads. These poly (styrene-2-hydroxyethyl methacrylate), P(S-HEMA) microbeads were activated by epichlorohydrin (ECH) treatment for covalent immobilization. The free and immobilized invertase were assayed in the hydrolysis of sucrose to glucose, and the obtained results were compared. The optimum pH was 4.5 for free and 5.5 for immobilized invertase. The optimum temperature of invertas...

Citation Formats

M. Lotfi, H. Tajik, M. Moradi, M. Forough, E. Divsalar, and B. Kuswandi, “Nanostructured chitosan/monolaurin film: Preparation, characterization and antimicrobial activity against Listeria monocytogenes on ultrafiltered white cheese,” LWT-FOOD SCIENCE AND TECHNOLOGY, pp. 576–583, 2018, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/90416.