Development and characterization of bilayer films of FucoPol and chitosan

Ferreira, Ana Rita; Torres, Cristiana A.V.; Freitas, Filomena; Sevrin, Chantal; Grandfils, Christian; Reis, Maria A.M.; Alves, Vítor D.; Coelhoso, Isabel M.

doi:10.1016/j.carbpol.2016.03.089

Cited by 102 publications

(77 citation statements)

References 42 publications

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“…Ferreira et al . reported that the tensile strength and elongation of chitosan films results are difficult to compare with the results found in the literature because of the large number of variables (different compositions, degree of acetylation, molecular weight, film preparation methods and conditioning conditions).…”

Section: Resultsmentioning

confidence: 97%

Biodegradable films based on chitosan, xanthan gum, and fish protein hydrolysate

Lima

Bianchini

Zavareze

et al. 2017

J of Applied Polymer Sci

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The aim of this study was to develop films based on chitosan, xanthan gum, and protein hydrolysate of Whitemouth croaker (Micropogonias furnieri), evaluating their antioxidant activity and also their mechanical, physical, structural, morphological, thermal, and barrier properties. The mixture of xanthan gum and protein hydrolysate promoted some changes in chitosan films. The addition of xanthan gum increased tensile strength and changed the color parameters of films. The addition of Whitemouth croaker protein hydrolysate increased the antioxidant activity of the films. However, higher concentrations of hydrolysate tend to increase moisture and decrease their tensile strength. All films had homogeneous structure, with no phase separation and fissures. Significant differences in water solubility and water vapor permeability were not observed by the addition of xanthan gum and protein hydrolysate. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 44899.

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Section: Resultsmentioning

confidence: 97%

Biodegradable films based on chitosan, xanthan gum, and fish protein hydrolysate

Lima

Bianchini

Zavareze

et al. 2017

J of Applied Polymer Sci

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“…In addition, more researchers are increasingly interested in the development of antibacterial biodegradable materials Lima et al, GE-based films are hygroscopic, flexible, and exhibit relatively poor mechanical properties (Alves et al, 2018). Therefore, blends of CS and GE were often used to prepare biocomposite packaging materials to achieve desirable moisture resistance and mechanical properties (Ferreira et al, 2016;Liu et al, 2012). Particularly, Gómezestaca, Gómezguillén, Fernándezmartín, and Montero (2011) have showed the addition of gelatin into a CS solution could improve the water resistance and reduce the air permeability of the films, which significantly enhanced the mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of Chitosan‐Based Ternary Blend Edible Films with Efficient Antimicrobial Activities for Food Packaging Applications

Guo

Chen

Yang

et al. 2019

Journal of Food Science

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To improve the mechanical and antibacterial properties of chitosan (CS) films, a ternary blend edible film was prepared by incorporating CS, gelatin (GE), and natural cinnamon essential oil (CEo). Scanning electron microscopy (SEM), Atomic force microscopy (AFM), Fourier transform infrared spectroscopy, and X‐ray diffraction were performed to evaluate the films. The mechanical properties, light transmission, thermal stability, hydrophilicity, and antibacterial activity of the films were also determined. The results confirmed all of the films exhibited excellent UV protection with low transparency at 600 nm. Compared with the CS films, the ternary composite film (CSGEo film, containing CS, GE, and CEo) had a higher elongation at break but a lower tensile strength. SEM images revealed that all films had smooth surfaces, although some obvious differences between CS and CSGEo films were observed by AFM. Additionally, the incorporation of GE and CEo to the films enhanced their thermal stability and contact angle, but decreased their crystallinity and wettability. The antimicrobial activity results showed that CSGEo films had excellent antimicrobial activity against Escherichia coli and Staphylococcus aureus, for which the antibacterial rate exceeded 98%. The minimum inhibitory concentrations of the CSGEo solution against E. coli and S. aureus were both 52.06 µg/mL, and the minimal bactericidal concentrations were 104.12 and 52.06 µg/mL, respectively. These results suggest that CSGEo films possess good mechanical and antibacterial properties, and therefore, their application in the food packaging industry is promising. Practical Application The main raw materials of the edible films developed in this study are aquatic by‐products, so the films are edible and biodegradable. The addition of gelatin and CEo improved the UV barrier and thermal properties but decreased the crystallinity and hydrophilicity of the films, making them suitable for use as packaging materials. CEo‐incorporated films exhibited excellent mechanical properties and antibacterial activity and can, therefore, be used in the food packaging industry.

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“…As for TS values, no differences were observed between the PVA-CHI and SA films, while TS of the bilayer film was 30% lower. According to Ferreira et al [13] and Sanyang et al, [26] the mechanical properties of bilayer films were between the values of each monolayer film and were close to the smaller values. For example, TS of sugar palm starch (SPS) monolayer film, poly(lactic acid) (PLA) monolayer film, and SPS-PLA bilayer film at ratio of 1 was 7.6, 18.5, and 11.9 MPa, respectively.…”

Section: Mechanical Propertiesmentioning

confidence: 69%

“…Ferreira et al [13] who classified bilayer films of FucoPol and CHI showed favorable optical, mechanical, and barrier properties than FucoPol monolayer films. Thu et al [14] reported that bilayer films based on alginate can be used as slow-release wound healing vehicles, in which the drug-free inner layer acts as a rate-controlling membrane.…”

Section: Introductionmentioning

confidence: 99%

Effect of bilayer coating composed of polyvinyl alcohol, chitosan, and sodium alginate on salted duck eggs

Jiang

Zhuang

Zhong

et al. 2018

International Journal of Food Properties

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The composite bilayer film based on polyvinyl alcohol, sodium alginate, and chitosan were developed in this study, and the effects of the related coating on internal-quality changes of salted duck eggs (SDEs) during storage were determined. The results showed that the overall properties of the bilayer film were better than those of monolayer films, including storage stability. Coatings could significantly (p < 0.05) reduce quality deterioration of SDEs such as water loss, oil exudation, and gritty. The bilayer coating was more effective in inhibiting the increase of egg yolk pH and total bacterial counts than monolayer coatings. After storage for 60 days, water content of bilayer coated SEDs was 19.7% higher than that of the control SDEs, oil exudation was 38% higher, and gritty texture was 27.9% higher. Moreover, bilayer coating could prolong the shelf life of SDEs to more than 60 days at 25°C and 50% relative humidity according to the results of total bacterial count experiment, while the shelf life of control SDEs was less than 45 days. This study indicated the potential application of bilayer composite coating for preservation of SDEs. ARTICLE HISTORY

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Development and characterization of bilayer films of FucoPol and chitosan

Cited by 102 publications

References 42 publications

Biodegradable films based on chitosan, xanthan gum, and fish protein hydrolysate

Biodegradable films based on chitosan, xanthan gum, and fish protein hydrolysate

Preparation and Characterization of Chitosan‐Based Ternary Blend Edible Films with Efficient Antimicrobial Activities for Food Packaging Applications

Effect of bilayer coating composed of polyvinyl alcohol, chitosan, and sodium alginate on salted duck eggs

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