Mechanical, physicochemical and color properties of chitosan based-films as a function of Aloe vera gel incorporation

Khoshgozaran-Abras, Sadegh; Azizi, Mohammad Hossein; Hamidy, Zohreh; Bagheripoor-Fallah, Niloofar

doi:10.1016/j.carbpol.2011.10.020

Cited by 146 publications

(86 citation statements)

References 31 publications

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“…Color properties of packaging are very important to general appearance and consumer acceptance . Changes of rectangular coordinates (L*, a*, and b*) are given in Table , where it can be seen that coordinate L* significant decrease (p < 0.05) with increasing levels of graphene oxide as expected for the contribution of graphene oxide dark color.…”

Section: Resultsmentioning

confidence: 87%

“…Color properties of packaging are very important to general appearance and consumer acceptance. [45] Changes of rectangular coordinates (L Ã , a Ã , and b Ã ) are given in Table 3, where it can be seen that coordinate L Ã significant decrease (p < 0.05) with increasing levels of graphene oxide as expected for the contribution of graphene oxide dark color. The parameters a Ã and b Ã show that with the first addition of graphene oxide (0.1%) they increase significantly, but with increasing concentration values tend to decrease.…”

Section: Color Propertiesmentioning

confidence: 74%

See 1 more Smart Citation

Chitosan Cross‐Linked Graphene Oxide Nanocomposite Films with Antimicrobial Activity for Application in Food Industry

Grande

Mangadlao

Fan

et al. 2017

Macromolecular Symposia

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The present study investigates the synthesis of graphene oxide‐chitosan (CS‐GO) nanocomposite films and their potential application in food packaging. Nanocomposite films were synthesized by cross‐linking graphene oxide with chitosan at high temperatures (120°C). The gel content assay showed an increasing in the % Gel of the nanocomposite film with the introduction of GO, from 64% to almost 89%, which could be related to the cross‐linking reaction between GO epoxy groups and chitosan amine and hydroxyl groups. Mechanical strength, thermal stability, infrared analysis and antimicrobial properties were also investigated. The tensile strength at break increased from 22.7 ± 1.2 to 6471.6 ± 1775.5 MPa when 0.1 wt% of GO was added. Thermal studies showed an increasing in the endothermal peak values with the increasing in GO content, which is also related to the increasing in the cross‐linking degree of the films and water interaction. Finally, the nanocomposites films were evaluated for antimicrobial properties, using E. coli K‐12 MG 1655 (Gram‐negative) and B. subtillis 102 (Gram‐positive). CS‐GO 0.6 wt% films presented the best microbial inactivation against E. coli and B. subtillis, with 22.83% and 54.93% inactivation, respectively. On the other hand, chitosan film (CS) control did not show any antimicrobial property. Therefore, cross‐linking of GO with chitosan improved significantly mechanical and antimicrobial properties of the films. These enhancements in the properties of the films made them suitable for application in food packaging.

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Section: Resultsmentioning

confidence: 87%

Section: Color Propertiesmentioning

confidence: 74%

Chitosan Cross‐Linked Graphene Oxide Nanocomposite Films with Antimicrobial Activity for Application in Food Industry

Grande

Mangadlao

Fan

et al. 2017

Macromolecular Symposia

View full text Add to dashboard Cite

show abstract

“…; Khoshgozaran‐Abras et al . ). Several factors could affect the water vapor permeability of chitosan films.…”

Section: Resultsmentioning

confidence: 97%

“…It was also reported that the WS of the chitosan films incorporated with tea polyphenols or Aloe vera gel increased with an increase in the added compound portion (Khoshgozaran‐Abras et al . ; Wang et al . ).…”

Section: Resultsmentioning

confidence: 99%

Physicochemical Properties of Chitosan Films Incorporated with Honeysuckle Flower Extract for Active Food Packaging

Wang

Jin

et al. 2015

J Food Process Engineering

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Active food packaging films based on chitosan and honeysuckle flower extract (HFE) were developed. The effects of the HFE incorporation at different levels on physical and mechanical properties (density, moisture content, opacity, color, water solubility, water vapor permeability, tensile strength and elongation at break) of chitosan film were investigated. The antioxidant activity of the chitosan/ HFE films was characterized in terms of 2,2-diphenyl-1-picrylhydrazyl free radical-scavenging activity. The antimicrobial activity of the chitosan/HFE films against Escherichia coli was determined by the agar diffusion method. The results indicated that the incorporation of HFE enhanced the antioxidant and antimicrobial activity of chitosan film and also improved the moisture barrier properties of chitosan film. Compared with the chitosan control film, the chitosan/HFE films had darker appearance, higher water solubility and lower tensile strength and elongation at break. The obtained chitosan/HFE films showed great potential to be used for active food packaging. PRACTICAL APPLICATIONSChitosan-based films and coatings have attracted considerable attention because of their biodegradability, antimicrobial activity, nontoxicity and versatile physicochemical properties. Honeysuckle flower extract (HFE) is extracted from honeysuckle, the flowers of Lonicera japonica Thunb. Because honeysuckle contains active components that have a wide spectrum of biological and pharmacological activities, such as antibacterial, antiviral and antioxidant activity, incorporating HFE into chitosan film should enhance antimicrobial and antioxidant activity of the film. On the other hand, the addition of HFE may affect other properties of chitosan film related to packaging applications. Through investigating effects of incorporating HFE on physicochemical properties of chitosan film, a more effective chitosan/HFE film/coating with optimized properties for food stuff packaging could be obtained.

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“…The primary amino groups of the chitosan are responsible for several important properties, such as mucoadhesion, in situ gelation, transfection, permeation enhancement, and efflux pump inhibitory properties [137]. Khoshgozaran-Abras et al [138] investigated the effect of aloe vera gel incorporation at different proportions on chitosan based films. The physicochemical, mechanical, and color properties of chitosan/aloe vera hydrogel films were evaluated.…”

Section: Aloe Vera Based Gels and Filmsmentioning

confidence: 99%

Aloe Vera for Tissue Engineering Applications

Rahman

Carter

Bhattarai

2017

JFB

154

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Aloe vera, also referred as Aloe barbadensis Miller, is a succulent plant widely used for biomedical, pharmaceutical and cosmetic applications. Aloe vera has been used for thousands of years. However, recent significant advances have been made in the development of aloe vera for tissue engineering applications. Aloe vera has received considerable attention in tissue engineering due to its biodegradability, biocompatibility, and low toxicity properties. Aloe vera has been reported to have many biologically active components. The bioactive components of aloe vera have effective antibacterial, anti-inflammatory, antioxidant, and immune-modulatory effects that promote both tissue regeneration and growth. The aloe vera plant, its bioactive components, extraction and processing, and tissue engineering prospects are reviewed in this article. The use of aloe vera as tissue engineering scaffolds, gels, and films is discussed, with a special focus on electrospun nanofibers.

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Mechanical, physicochemical and color properties of chitosan based-films as a function of Aloe vera gel incorporation

Cited by 146 publications

References 31 publications

Chitosan Cross‐Linked Graphene Oxide Nanocomposite Films with Antimicrobial Activity for Application in Food Industry

Chitosan Cross‐Linked Graphene Oxide Nanocomposite Films with Antimicrobial Activity for Application in Food Industry

Physicochemical Properties of Chitosan Films Incorporated with Honeysuckle Flower Extract for Active Food Packaging

Aloe Vera for Tissue Engineering Applications

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