Preparation of Chitosan with Different Characteristics and Its Application for Biofilms Production

Moura, Jaqueline Motta de; Farias, Bruna Silva de; Rodrigues, Denys A. S.; Moura, Catarina Motta de; Dotto, Guilherme L.; Pinto, Luiz Antônio de Almeida

doi:10.1007/s10924-015-0730-y

Cited by 71 publications

(33 citation statements)

References 45 publications

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“…Chitosan powder samples presented viscosimetric molecular weight of 150.5 ± 1.1 kDa and deacetylation degree of 85.4 ± 1.1%. These values were similar to the values reported in the literature …”

Section: Resultssupporting

confidence: 92%

“…FTIR spectra for the pure films and bio‐blend films are presented in Figure . The FTIR spectrum of 100% chitosan film [Figure (a)] showed the characteristic bands of chitosan . The bands in the range of 3409 cm −1 are relative to the NH and OH stretchings.…”

Section: Resultsmentioning

confidence: 99%

“…Chitosan powder was obtained from shrimp wastes ( Penaeus brasiliensis ) of fishery industries located in Rio Grande, RS, Brazil. In brief, shrimp wastes were submitted to washing, demineralization, deproteinization, deodorization, deacetylation reaction, purification and drying steps, according to previous works . Chitosan powder was characterized according to the deacetylation degree and viscosimetric molecular weight …”

Section: Methodsmentioning

confidence: 99%

“…Five types of CSBB were prepared: a 100% chitosan film, a 100% Spirulina film, a bio‐blend film of 75% chitosan/25% Spirulina , a bio‐blend film of 50% chitosan/50% Spirulina , and a bio‐blend film of 25% chitosan/75% Spirulina . For the preparation of pure films and bio‐blend films, the powder samples of chitosan and of Spirulina were used as described below: 100% chitosan film: the filmogenic solution was obtained by dissolving chitosan powder (2% wt/wt) in 50 mL of acetic acid solution (CH 3 COOH) (1% vol/vol) at 600 rpm (Fisatom, 752, Brazil) and room temperature for 120 min; 100% Spirulina film: the filmogenic solution was obtained by dissolving Spirulina (2% wt/wt) in 50 mL of acetic acid (1% vol/vol). The mixture was stirred at 25,000 rpm in a mechanical stirrer (Bosch, GS 927 Professional, Brazil) for 10 min; Chitosan/ Spirulina bio‐blend films: the filmogenic solution was obtained dissolving chitosan powder in 50 mL of acetic acid solution (CH 3 COOH) (1% vol/vol) under magnetic stirring of 600 rpm (Fisatom, 752, Brazil), at room temperature for 120 min .…”

Section: Methodsmentioning

confidence: 99%

“…All filmogenic solutions were placed in circular glass plates with diameter of 14.7 ± 0.2 cm. The pure films and bio‐blend films were obtained by solvent evaporation in an oven with air circulation, at 40 °C for 24 h. The films were removed from the plates and placed in desiccators with a relative humidity of 55% and 25 ± 1 °C for 48 h, prior to the analyses and biosorption assays …”

Section: Methodsmentioning

confidence: 99%

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Development of chitosan/Spirulina bio‐blend films and its biosorption potential for dyes

Silva

Farias

Gründmann

et al. 2016

J of Applied Polymer Sci

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Chitosan/Spirulina bio‐blends (CSBB) in films form were developed to be an alternative/renewable biosorbent, able to remove anionic and cationic dyes from aqueous solutions. CSBB potential as biosorbent was investigated for cationic dye Methylene Blue (MB), and anionic dyes Tartrazine Yellow (TY) and Reactive Black 5 (RB5). Chitosan and Spirulina samples were obtained and characterized, and CSBB films were prepared with different chitosan/Spirulina ratios. The CSBB films characteristics, as, mechanical properties, thermal profile, crystallinity, functional groups, morphology, and biosorption potential were strongly dependent of chitosan/Spirulina ratio. CSBB films preserved its mechanical structures at pH from 4.0 to 8.0. The biosorption capacities were 120, 110, and 100 mg g−1 for RB5, TY, and MB, respectively. The increase of chitosan amount favored the TY and RB5 biosorption; however, the increase of Spirulina amount favored the MB biosorption. Thus, the CSBB in film form is a renewable biosorbent suitable to remove anionic and cationic dyes from aqueous solutions. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 44580.

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Section: Resultssupporting

confidence: 92%

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 3 more Smart Citations

Development of chitosan/Spirulina bio‐blend films and its biosorption potential for dyes

Silva

Farias

Gründmann

et al. 2016

J of Applied Polymer Sci

View full text Add to dashboard Cite

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Byproducts from Shellfish Harvesting and Processing

Klomklao

Poonsin

Benjakul

et al. 2019

Byproducts From Agriculture and Fisheries

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An Ultra‐Strong, Water Stable and Antimicrobial Chitosan Film with Interdigitated Bouligand Structure

Wang

Huang

et al. 2022

Advanced Sustainable Systems

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Natural polymeric materials are an attractive potential replacement for non‐biodegradable plastics. However, one of the main challenges for high‐end applications of these materials, is to maintain their high mechanical properties in a watery environment. Here, inspired by the reinforcement principle of multiscale architecture in natural crab exoskeletons, an ultra‐strong and hydrostable film is developed through a top‐down method directly from the crab shell. The resulting chitosan film exhibits an outstanding isotropic tensile strength of ≈220 MPa and a superior wet strength of ≈70 MPa, which is significantly higher than that of conventional polysaccharide‐based materials and many commercially used plastics. Its excellent mechanical properties are due to the realization of strong interactions between chitosan fibrils even in wet conditions through interdigitation and densification processes without other additives. Additionally, it also possesses outstanding transparency, flexibility, antimicrobial ability, and biodegradability, making it a promising high‐performance and eco‐friendly material for many potential applications.

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Preparation of Chitosan with Different Characteristics and Its Application for Biofilms Production

Cited by 71 publications

References 45 publications

Development of chitosan/Spirulina bio‐blend films and its biosorption potential for dyes

Development of chitosan/Spirulina bio‐blend films and its biosorption potential for dyes

Byproducts from Shellfish Harvesting and Processing

An Ultra‐Strong, Water Stable and Antimicrobial Chitosan Film with Interdigitated Bouligand Structure

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