Physicochemical characterization of chitosan-based coating-forming emulsions: Effect of homogenization method and carvacrol content

Flores, Zoila; Martín, Diego San; Villalobos‐Carvajal, Ricardo; Tabilo‐Munizaga, Gipsy; Osorio, Fernando; Leiva-Vega, Javier

doi:10.1016/j.foodhyd.2016.07.007

Cited by 45 publications

(23 citation statements)

References 42 publications

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“…Coating the skin with chitosan solution delays weight loss and ripening of fruit vegetables, and hence, can extend their shelf‐lives (Elsabee and Abdou ; Carrión‐Granda and others ; Flores and others ). Chitosan coating of cherry tomato reportedly is effective in controlling weight loss, respiration, and ripening and reduces titratable acidity (El Ghaouth and others ; Guerra and others ).…”

Section: Introductionmentioning

confidence: 99%

Edible Coating Using a Chitosan‐Based Colloid Incorporating Grapefruit Seed Extract for Cherry Tomato Safety and Preservation

Won

Lee

Park

et al. 2017

Journal of Food Science

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Grapefruit seed extract (GSE)-containing chitosan-based coating was developed and applied to cherry tomatoes to protect them from Salmonella invasion and improve their storability. The coating colloids were produced by mixing a chitosan colloid (1% [w/w] chitosan) with GSE at various concentrations (0.5%, 0.7%, 1.0%, and 1.2% [w/w]) using high-shear mixing (10000 rpm, 2 min). Coatings with chitosan colloids containing GSE at 0.0%, 0.5%, 0.7%, and 1.0% (w/w) inactivated Salmonella on cherry tomatoes by 1.0 ± 0.3, 1.2 ± 0.3, 1.6 ± 0.1, and 2.0 ± 0.3 log CFU/cherry tomato, respectively. Coatings both with and without GSE (1.0%) effectively inhibited the growth of Salmonella and total mesophilic aerobes, reduced CO 2 generation, and retarded titratable acidity decrease during storage at 10 and 25°C. The advantage of incorporating GSE in the formulation was demonstrated by delayed microorganism growth and reduced weight loss at 25°C. The chitosan-GSE coating did not affect lycopene concentration, color, and sensory properties (P > 0.05). Chitosan-GSE coating shows potential for improving the microbiological safety and storability of cherry tomatoes, with stronger efficacy at 25°C than that of chitosan coating without GSE.Keywords: antimicrobial packaging, chitosan, edible coating, grapefruit seed, tomato Practical Application: A novel chitosan coating containing grape fruit seed extract (GSE) improved the microbiological safety against Salmonella and storability of cherry tomatoes without altering their flavor, demonstrating its strong potential as an effective postharvest technology. Chitosan coating containing GSE might be preferable over chitosan coating without GSE for application to tomatoes that are stored at room temperature in that it more effectively inhibits microbial growth and weight loss than the coating without GSE at 25°C.

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Section: Introductionmentioning

confidence: 99%

Edible Coating Using a Chitosan‐Based Colloid Incorporating Grapefruit Seed Extract for Cherry Tomato Safety and Preservation

Won

Lee

Park

et al. 2017

Journal of Food Science

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“…Acid compounds: (i) Acetic acid [17,38,80,40,76,85,86] (ii) Ascorbic acid [17] (iii) Citric acid [17] (iv) Lactic acid [85] (v) Glacial acetic acid [82] Other materials:…”

Section: Preparation Of Chitosan-based Coating With Essentialmentioning

confidence: 99%

“…The investigation of Flores et al [86] reported the method to prepare the coating solution by dissolving chitosan powder in a hydroalcoholic acid solution under stirring for 6 h at room temperature. After removing impurities by vacuum filtration, glycerol was added into the chitosan solution and stirred for another 30 min.…”

Section: Preparation Of Chitosan-based Coating With Acid Compoundsmentioning

confidence: 99%

“…Chitosan-based coating film with different nanoparticles has been developed in recent years. The differences between normal-sized substances and nanosized substances indicate the effectiveness of small size, surface, and macroscopic quanta size [84][85][86][87]. The developed works have been conducted by using nanoparticles as antimicrobials.…”

Section: Preparation Of Chitosan-based Coating With Nanomaterialsmentioning

confidence: 99%

“…TEM results indicated that the highly porous structure was observed in the chitosan/nanosilica film. Flores et al [86] reported that chitosan coating emulsions obtained by the high-pressure homogenization method could reduce its apparent viscosity and the droplet size. This chitosan film could display better stability characteristics and surface properties that make them suitable as a coating for the storage of fruit and vegetable products.…”

Section: Surface and Structural Characterization Of Chitosan-basedmentioning

confidence: 99%

See 2 more Smart Citations

Chitosan-Based Coating with Antimicrobial Agents: Preparation, Property, Mechanism, and Application Effectiveness on Fruits and Vegetables

Xing

et al. 2016

International Journal of Polymer Science

117

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Chitosan coating is beneficial to maintaining the storage quality and prolonging the shelf life of postharvest fruits and vegetables, which is always used as the carrier film for the antimicrobial agents. This review focuses on the preparation, property, mechanism, and application effectiveness on the fruits and vegetables of chitosan-based coating with antimicrobial agents. Chitosan, derived by deacetylation of chitin, is a modified and natural biopolymer as the coating material. In this article, the safety and biocompatible and antimicrobial properties of chitosan were introduced because these attributes are very important for its application. The methods to prepare the chitosan-based coating with antimicrobial agents, such as essential oils, acid, and nanoparticles, were developed by other researchers. Meanwhile, the application of chitosan-based coating is mainly due to its antimicrobial activity and other functional properties, which were investigated, introduced, and analyzed in this review. Furthermore, the surface and mechanical properties were also investigated by researchers and concluded in this article. Finally, the effects of chitosan-based coating on the storage quality, microbial safety, and shelf life of fruits and vegetables were introduced. Their results indicated that chitosan-based coating with different antimicrobial agents would probably have wide prospect in the preservation of fruits and vegetables in the future.

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Microfluidic‐assisted preparation of nano and microscale chitosan based 3D composite materials: Comparison with conventional methods

Kımna

Deger

Tamburacı

et al. 2022

J of Applied Polymer Sci

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Although nanofillers contribute to improved physical characteristics and biological functionalities of polymer-based biomaterials, their dispersion in polymer matrices is still a challenging issue in terms of obtaining consistency for the inherent properties. To tackle this problem, homogenization techniques are applied to disperse the nanofillers in such polymers, however, these methods can cause undesired changes especially in the rheological properties and the physical structure of the biopolymer matrices. Recently, as a novel homogenization technique, microfluidization has been used to homogenize polymer nanocomposites to minimize these limitations. In this study, two different nanocomposite structures as chitosan/montmorillonite (CS/MMT) and chitosan/polyhedral oligomeric silsesquioxane nanocages (CS/POSS) were homogenized with microfluidization and investigated in terms of physical alterations. Furthermore, the effect of microfluidizer technique on material characteristics was compared with conventional homogenization techniques, i.e., ultrasonic bath and sonication in terms of solution, nano -(e.g., hydrodynamic size, drug encapsulation) and macroscopic material characteristics (e.g., porosity, mechanical properties, swelling and thermal degradation). It was found that the microfluidizer homogenization improves the physical characteristics in both nano and macroscale materials: Nanospheres obtained from CS/MMT composites showed enhanced stability, uniform size distribution (<100 nm, PDI: <0.2), and good encapsulation efficiency (>50%) whereas 3D porous CS/POSS scaffolds showed improved structural uniformity (i.e., homogeneous and interconnected microstructure) and enhanced thermal and mechanical properties. The obtained results indicate that the microfluidizer homogenization ensures a successful nanofiller dispersion in polymer matrices, thereby improving the biomaterial characteristics impressively compared to the sonication methods. K E Y W O R D S biomaterials, mechanical properties, microscopy, polysaccharides, porous materials Ceren Kimna and Sedef Tamburaci have equal contribution in this study.

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Physicochemical characterization of chitosan-based coating-forming emulsions: Effect of homogenization method and carvacrol content

Cited by 45 publications

References 42 publications

Edible Coating Using a Chitosan‐Based Colloid Incorporating Grapefruit Seed Extract for Cherry Tomato Safety and Preservation

Edible Coating Using a Chitosan‐Based Colloid Incorporating Grapefruit Seed Extract for Cherry Tomato Safety and Preservation

Chitosan-Based Coating with Antimicrobial Agents: Preparation, Property, Mechanism, and Application Effectiveness on Fruits and Vegetables

Microfluidic‐assisted preparation of nano and microscale chitosan based 3D composite materials: Comparison with conventional methods

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