Modification of Chitosan for the Generation of Functional Derivatives

Brasselet, Clément; Pierre, Guillaume; Dubessay, Pascal; Dols‐Lafargue, Marguerite; Coulon, Joana; Maupeu, Julie; Vallet-Courbin, Amélie; Baynast, Hélène de; Doco, Thierry; Michaud, Philippe; Delattre, Cédric

doi:10.3390/app9071321

Cited by 125 publications

(102 citation statements)

References 240 publications

(337 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The authors suggested that TiO 2 may promote a modification of the CS-TiO 2 film matrix, forming a dense structure, which act as obstacles to water vapor diffusion through the film [28,50]. Similar trends were observed in the OVP properties through the incorporation of nano-TiO 2 to CS films according to Peng et al [59] and Lian et al [60], who stated that the presence of TiO 2 significantly improves the film functionality by reducing the exchange of oxygen through the CS-TiO 2 composite film [66]. Besides, no significant differences in water solubility were observed between CS and CS-TiO 2 films [57].…”

Section: Chitosan-tio 2 (Cs-tio 2 ) Compositesupporting

confidence: 52%

Chitosan-TiO2: A Versatile Hybrid Composite

et al. 2020

View full text Add to dashboard Cite

In recent years, a strong interest has emerged in hybrid composites and their potential uses, especially in chitosan-titanium dioxide (CS-TiO 2 ) composites, which have interesting technological properties and applications. This review describes the reported advantages and limitations of the functionalization of chitosan by adding TiO 2 nanoparticles. Their effects on structural, textural, thermal, optical, mechanical, and vapor barrier properties and their biodegradability are also discussed. Evidence shows that the incorporation of TiO 2 onto the CS matrix improves all the above properties in a dose-dependent manner. Nonetheless, the CS-TiO 2 composite exhibits great potential applications including antimicrobial activity against bacteria and fungi; UV-barrier properties when it is used for packaging and textile purposes; environmental applications for removal of heavy metal ions and degradation of diverse water pollutants; biomedical applications as a wound-healing material, drug delivery system, or by the development of biosensors. Furthermore, no cytotoxic effects of CS-TiO 2 have been reported on different cell lines, which supports their use for food and biomedical applications. Moreover, CS-TiO 2 has also been used as an anti-corrosive material. However, the development of suitable protocols for CS-TiO 2 composite preparation is mandatory for industrial-scale implementation.Materials 2020, 13, 811 2 of 27 they are synthesized by different methods (intercalation of the polymer, sol-gel, hydrothermal, electro-deposition, chemical and physical vapor deposition, suspension and liquid phase deposition). These methods are effective to enhance the technological and mechanical properties of each individual component and also reveal new functionalities [1,3]. Currently, there is a special interest in combining natural polymers such as chitosan (CS) with inorganic materials like titanium dioxide (TiO 2 ) to obtain hybrid composites (CS-TiO 2 ) with beneficial properties [3][4][5][6].Chitosan (CS) is a natural biopolymer (linear polysaccharide comprising 1-4 linked 2-amino-deoxy-β-D-glucan) generally obtained by deacetylation of chitin, the main structural component of crustacean exoskeletons. CS exhibits a poly-cationic character and is non-toxic and biodegradable [7]. CS is considered a biological functional compound with multiple interesting properties. It can form films for food and pharmaceutical applications, including edible coatings, packaging material, or as drug-eluting carrier [5,7]. Its adsorbent capacity can have environmental applications during photocatalytic processes of waste-water treatment [8], and it also has inherent antibacterial and antifungal properties [9]. It is biocompatible with several organic and inorganic compounds by the presence of free amino and hydroxyl functional groups in its structure, which can react with other functional groups by electrostatic forces, hydrogen bonds, or by compound-soak up into the polymeric matrix, thus improving its mechanical and biological properties [10]...

show abstract

Section: Chitosan-tio 2 (Cs-tio 2 ) Compositesupporting

confidence: 52%

Chitosan-TiO2: A Versatile Hybrid Composite

et al. 2020

View full text Add to dashboard Cite

show abstract

“…As described above, polysaccharides are abundantly present in lot of biomasses such as plant and microorganisms. If it is considered marine biotopes, seaweeds and crustaceans are the most important sources of polysaccharides [183,184]. Consequently, the last 2 decades lots of marine polysaccharides such as chitosan, alginate, agar-agar, and carrageenan have been largely described for their techno-functional applications.…”

Section: Marine Polysaccharidesmentioning

confidence: 99%

“…Several recent studies have shown that it is possible to use chitosan for food packaging, due to its physico-chemical properties [184]. In a very interesting review, Fernandez-Saiz [190] gave an overview of the food packaging applications using chitosan.…”

Section: Chitosanmentioning

confidence: 99%

“…Consequently, several strategies were proposed, in terms of blending CS with: (i) polymers such as cellulose, polyethylene terephthalate (PET), gelatin, polyvinyl alcohol (PVA) and (ii) citric acid, glycerol, genipin as plasticizers and cross-linkers in order to enhance water-resistance while maintaining high biodegradability [191][192][193][194]. Moreover, it was particularly described the excellent coating and film-forming abilities coupled with a very good intrinsic antimicrobial property against fungi and bacteria as largely described in the literature [183,184,195,196]. In recent years, all these features were exploited by lots of research groups using CS in packaging field and more especially in the development of innovative and very promising active food packaging such as antimicrobial packaging [197,198].…”

Section: Chitosanmentioning

confidence: 99%

See 1 more Smart Citation

Prospect of Polysaccharide-Based Materials as Advanced Food Packaging

Nešić

Cabrera‐Barjas

Dimitrijević-Branković

et al. 2019

Molecules

Self Cite

227

View full text Add to dashboard Cite

The use of polysaccharide-based materials presents an eco-friendly technological solution, by reducing dependence on fossil resources while reducing a product's carbon footprint, when compared to conventional plastic packaging materials. This review discusses the potential of polysaccharides as a raw material to produce multifunctional materials for food packaging applications. The covered areas include the recent innovations and properties of the polysaccharide-based materials. Emphasis is given to hemicelluloses, marine polysaccharides, and bacterial exopolysaccharides and their potential application in the latest trends of food packaging materials, including edible coatings, intelligent films, and thermo-insulated aerogel packaging.

show abstract

“…Therefore, it can be used in the industry for making a suitable alternative for plastics. The chitin and its derivative polysaccharides are widely used for medical applications due to their biocompatibility and antimicrobial potency (Brasselet et al, 2019). It is fixed with a protein matrix of a crustacean shell.…”

Section: Introductionmentioning

confidence: 99%

Development and optimization of the demineralization process for the extraction of chitin from Omani Portunidae segnis

Shaqsi¹,

Hoqani²,

Hossain³

et al. 2020

Preprint

View full text Add to dashboard Cite

Background: Chitin is an organic polymer and it is rich marine natural polysaccharide after the cellulose. The main natural sources of chitin are exoskeletons of insects, mollusks, the cell walls of certain fungi and crustaceans such as crabs, shrimps and lobsters. The waste of these marine exoskeletons are pollutant for the environment continuously, but this raw material could be used for the production of commercial chitin. The chitin is an important raw material used for water treatment, agricultural, biomedicinal, biotechnological purposes, food and paper industry and cosmetics. Based on the variety of importance, the present targets of this study is to i. optimize the demineralization process for the removal of calcium and phosphorus from the waste of Portunidae segnis (P. segnis) by using acid at ambient temperature ii. characterize the isolated demineralized sample as well as the percentage of remaining calcium and phosphorus by using Inductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES). Results: The coarse powder samples of P. segnis were demineralized with seven different concentrations of hydrochloric acid at ambient temperature for 1 hour. All the demineralization samples at different concentrations were analysed by using sensitive ICP-OES. The results based on ICP-OES showed that among the seven different concentrations wused in the demineralization process for the isolation of chitin, the best was 2M of HCl concentration for the production of chitin. Conclusion: The develop optimized demineralization process could be used commercially for the isolation of chitin for the preparation of agriculture, biomedicine, biotechnological purposes.

show abstract

Modification of Chitosan for the Generation of Functional Derivatives

Cited by 125 publications

References 240 publications

Chitosan-TiO2: A Versatile Hybrid Composite

Chitosan-TiO2: A Versatile Hybrid Composite

Prospect of Polysaccharide-Based Materials as Advanced Food Packaging

Development and optimization of the demineralization process for the extraction of chitin from Omani Portunidae segnis

Contact Info

Product

Resources

About