Chitosan-gelatin composites and bi-layer films with potential antimicrobial activity

Pereda, Mariana; Ponce, Alejandra Graciela; Marcovich, Norma Esther; Ruseckaite, Roxana Alejandra; Martucci, Josefa Fabiana

doi:10.1016/j.foodhyd.2011.01.001

Cited by 482 publications

(264 citation statements)

References 40 publications

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“…However, the solubility was lower than that reported in fish-gelatin film (94.9%) by Ahmad et al (2015) and cattle-gelatin film (100%) by Pereda, Ponce, Marcovich, Ruseckaite, and Martucci (2011).…”

Section: Characterization Of the Optimized Biodegradable And Control contrasting

confidence: 69%

Development and optimization of biodegradable fish gelatin composite film added with buriti oil

Silva

Hernández

Araujo

et al. 2018

CyTA - Journal of Food

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The goal of the present study was to determine, through full 2 3 factorial design, the optimum process conditions to develop a biodegradable film, made from gelatin with buriti oil (BO) as additive, characterizing their physical, mechanical, and antioxidant aspects. The conditions for the optimization were 2.3% of fish gelatin, 30% of BO, and 13.18% of plasticizer. The films produced under this condition presented high antioxidant activity (24.77 µmol de TE/g), mechanical resistance (8.04 MPa), and satisfactory water vapor permeability (WVP; 0.38 × 10 −10 g.m. m −2 . s −1 . Pa −1 ). The film presented low solubility in water, low humidity, and low water activity, contributing to its integrity, without identifiable flaws. The increase in the concentration of BO provided higher antioxidant properties to the films and the reduction in gelatin and glycerol concentrations provided lower WVP, increasing the traction resistance.Desarrollo y optimización de una película compuesta hecha de gelatina de pescado biodegradable con aceite de burití añadido RESUMEN A través de un diseño factorial completo de 2 3 , el presente estudio se propuso determinar las condiciones óptimas para desarrollar una película biodegradable, hecha de gelatina con aceite de burití añadido, y caracterizar sus aspectos físicos, mecánicos y antioxidantes. Se pudo constatar que las condiciones óptimas para este proceso incluyen el uso de 2.3% de gelatina de pescado, 30% de aceite de burití y 13.18% de plastificante. Las películas producidas bajo estas condiciones presentan elevada actividad antioxidante (24.77 µmol de TE/g), resistencia mecánica (8.04 MPa) y WVP satisfactoria (0.38 × 10 −10 g.m. m −2 . s −1 . Pa −1 ). Además, la película mostró tener baja solubilidad en el agua, baja humedad y baja actividad en agua, lo cual contribuye a mantener su integridad, sin que se presenten defectos identificables. Al elevarse la concentración de aceite de burití, las películas acusaron propiedades antioxidantes más elevadas. Una reducción de las concentraciones de gelatina y glicerol produjo una permeabilidad más baja al vapor de agua, aumentando la resistencia a la tracción. ARTICLE HISTORY

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Section: Characterization Of the Optimized Biodegradable And Control contrasting

confidence: 69%

Development and optimization of biodegradable fish gelatin composite film added with buriti oil

Silva

Hernández

Araujo

et al. 2018

CyTA - Journal of Food

View full text Add to dashboard Cite

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“…Similar results were seen for Values are mean (n = 5) ± SD. Different letters in each column represent significant difference at 5 % level of probability among Semolina films WVP Water-vapor permeability, OP Oxygen permeability gelatin and chitosan films (Kanmani and Rhim 2014;Pereda et al 2011).…”

Section: Uv-visible (Uv-vis) and Ftir Spectramentioning

confidence: 99%

Preparation and characterization of bionanocomposite films reinforced with nano kaolin

et al. 2015

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Effects of nano-kaolin incorporation into semolina films on the physical, mechanical, thermal, barrier and antimicrobial properties of the resulting bio-nanocomposite films were investigated. The properties included crystal structure (by X-ray diffraction), mechanical resistance, color, Fourier transform infrared spectra, decomposition temperature, water-vapor permeability (WVP), oxygen permeability (OP), and antimicrobial activity against Staphylococcus aureus and Escherichia coli. Kaolin was incorporated into biofilms at various amounts (1, 2, 3, 4, and 5 %, w/w total solid). All films were plasticized with 50 % (w/w total solid) combination of sorbitol/glycerol at 3:1 ratio. The incorporation of nanokaolin into semolina films decreased OP and WVP. The moisture content and water solubility of the films were found to decrease by nanokaolin reinforcement, and mechanical properties of films were improved by increasing nanokaolin concentration. Tensile strength and Young's modulus increased from 3.41 to 5.44 MPa and from 63.12 to 136.18, respectively, and elongation-at-break decreased. The films did not exhibit UV absorption. In conclusion, nanokaolin incorporation enhanced the barrier and mechanical properties of semolina films, indicating the potential application of these bio-nanocomposites in food-product packaging.

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“…A microbiological acceptability limit is 7 log CFU/g for fresh water and marine species that is fit for human consumption [12]. The coated and wrapped samples prior to VP had the minimum initial amount of bacteria, might be attributed to the immediate antimicrobial effect of chitosan [13,15,21,23]. Chitosan might show synergistics effect with VP on inhibition of total viable counts and psychrophilic bacteria counts in Lethrinus nebulosus.…”

Section: Bacteriological Analysismentioning

confidence: 99%

“…The antimicrobial effect of chitosan has been ascribed to the presence of the positively charged on the NH 3 ? group of glucosamine monomer in chitosan molecules which interact with negatively charged macromolecules on the microbial cell surface, leading to the leakage of intracellular constituents of the microorganisms, moreover, the mechanism of action of chitosan appears to be related to disruption of the lipopolysaccharide layer of the outer membrane of gram-negative bacteria [23], also to its function as a barrier against oxygen transfer [13]. This result was in agreement with Günlü and Koyun [10] who reported that sea bass treated with chitosan stored under VP had the lowest mesophilic aerobic bacteria, compared with the control and VP during refrigerated storage.…”

Section: Bacteriological Analysismentioning

confidence: 99%

Effect of Chitosan Treatments and Vacuum Packaging on the Shelf Life of Spangled Emperor Lethrinus nebulosus Fillets Stored in Refrigerator

Rezaabad

Khodanazary

Hosseini

2017

J Package Technol Res

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The effect of vacuum packaging (VP) on the quality changes of Spangled emperor (Lethrinus nebulosus) treated with or without chitosan during refrigerated storage of 12 days was investigated. Treatments included the following: control (untreated, control samples stored in air), VP (untreated, stored under vacuum packaging), FV (treated with chitosan film, stored under vacuum packaging) and CV (treated with chitosan coating stored under vacuum packaging). Chitosan coated and wrapped samples prior to VP can remarkably delay the growth of total viable count and psychrotrophilic count. Production of total viable bases nitrogen and trimethylamine for FV and CV Spangled emperor samples was significantly lower than for untreated samples at day 12 of storage. The coincidental lowered rate of increase thiobarbitoric acid and free fatty acid were obtained in Spangled emperor coated chitosan stored under vacuum packaging. Vacuum-packaged samples coated with chitosan showed significantly (P \ 0.05) lower changes in a color value than uncoated samples. Therefore, Spangled emperor treated with chitosan stored under vacuum packaging had the lowest losses in quality during refrigerated storage. In addition, there was no significant difference between coating and film in reducing bacteriological, physicochemical and color parameters.

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Chitosan-gelatin composites and bi-layer films with potential antimicrobial activity

Cited by 482 publications

References 40 publications

Development and optimization of biodegradable fish gelatin composite film added with buriti oil

Development and optimization of biodegradable fish gelatin composite film added with buriti oil

Preparation and characterization of bionanocomposite films reinforced with nano kaolin

Effect of Chitosan Treatments and Vacuum Packaging on the Shelf Life of Spangled Emperor Lethrinus nebulosus Fillets Stored in Refrigerator

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