Impact of acid type for chitosan dissolution on the characteristics and biodegradability of cornstarch/chitosan based films

Pavoni, Julia Menegotto Frick; Luchese, Cláudia Leites; Tessaro, Isabel Cristina

doi:10.1016/j.ijbiomac.2019.07.089

Cited by 88 publications

(35 citation statements)

References 47 publications

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“…In the spectra of all films, the presence of the characteristics peak of each biopolymer used was observed, as well as a displacement of these bands, which is indicative of the interaction between the components in the film matrix [48]. As a result, these interactions will affect the thickness of the film, mechanical properties, barriers, opacity and morphology [48]. Besides, for GCL film, the higher intensity in the peaks in the region of amine and amides groups, at 1643 and 1547 cm −1 , was noticed.…”

Section: Ftirmentioning

confidence: 94%

“…The NH 3 + group of the chitosan molecule and the free -OH groups were able to easily form intramolecular and intermolecular hydrogen to constitute the overall structure of the film [47]. In the spectra of all films, the presence of the characteristics peak of each biopolymer used was observed, as well as a displacement of these bands, which is indicative of the interaction between the components in the film matrix [48]. As a result, these interactions will affect the thickness of the film, mechanical properties, barriers, opacity and morphology [48].…”

Section: Ftirmentioning

confidence: 94%

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Characterization of Chitosan Films Incorporated with Different Substances of Konjac Glucomannan, Cassava Starch, Maltodextrin and Gelatin, and Application in Mongolian Cheese Packaging

Zheng

Zhou

et al. 2021

Coatings

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Four kinds of edible composite films based on chitosan combined with additional substances (konjac glucomannan, cassava starch, maltodextrin and gelatin) and the addition of lysozyme were prepared and used as packaging materials for Mongolian cheese. The prepared composite films were evaluated using scanning electron microscopy and Fourier transform infrared spectroscopy. The physicochemical properties of all chitosan composite films, including thickness, viscosity, opacity, color, moisture content, water vapor permeability, tensile strength and elongation at break, were measured. The results show that Konjac glucomannan–chitosan composite film presented the strongest mechanical property and highest transparency. The cassava starch–chitosan composite film presented the highest water barrier property. The study on the storage characteristics of Mongolian cheese was evaluated at 4 °C. The results show that the cheese packaging by cassava starch–chitosan composite film presented better treatment performance in maintaining the quality, reducing weight loss and delayering microbial growth.

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Section: Ftirmentioning

confidence: 94%

Section: Ftirmentioning

confidence: 94%

Characterization of Chitosan Films Incorporated with Different Substances of Konjac Glucomannan, Cassava Starch, Maltodextrin and Gelatin, and Application in Mongolian Cheese Packaging

Zheng

Zhou

et al. 2021

Coatings

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“…The thermogravimetric analysis (TGA) of samples was performed using a thermobalance (TA Instruments model SDT Q600), using similar conditions to the work published by Pavoni, Luchese & Tessaro [41]. The samples (~ 5 mg) were heated from 25 to 800 °C at a heating rate of 10 °C min −1 under a nitrogen atmosphere with a rate of 100 mL min −1 .…”

Section: Thermogravimetric Analysismentioning

confidence: 99%

Reuse of Different Agroindustrial Wastes: Pinhão and Pecan Nutshells Incorporated into Biocomposites Using Thermocompression

et al. 2020

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The development of cassava starch-based biocomposites incorporated with pecan nutshells and pinhão shells by thermocompression process was evaluated. The biocomposites were characterized in terms of thickness, bulk density, hydrophilicity, water absorption capacity (WAC), morphology, thermal and mechanical properties. The samples with residues incorporation showed lower WAC when compared to the control ones, for all evaluated times. Biocomposites containing the pinhão shells showed hydrophobic character, measured by the contact angle (greater than 90°). More irregularities were evidenced by the morphological analysis for the biocomposites added with pecan nutshells. The thermal stability of the biocomposites was influenced by the high lignin content in the residues. Regarding the mechanical properties, in both tensile and flexural tests, biocomposites containing pecan nutshells presented the lowest values of stress at break and modulus of elasticity. When compared to the control sample, the composites added with the pinhão shells had mechanical similar properties, differently from the result for samples incorporated with pecan nutshells that presented less resistant.

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“…Chemical modification can not only improve the physical and chemical properties of chitosan, it can also retain the unique properties of chitosan and expand the application range of chitosan derivatives. Modified chitosan derivatives have better biocompatibility, bioactivity, anticancer, and antiviral pharmacological effects, including the ability to induce erythrocyte aggregation, promote platelet activation, and activate complement systems other than that of chitosan [8][9][10][11][12][13]. At present, chitosan derivatives have been widely used in both medical materials and biomedicine.…”

Section: Introductionmentioning

confidence: 99%

Chitosan Derivatives and Their Application in Biomedicine

Wang

Meng

et al. 2020

IJMS

649

326

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Chitosan is a product of the deacetylation of chitin, which is widely found in nature. Chitosan is insoluble in water and most organic solvents, which seriously limits both its application scope and applicable fields. However, chitosan contains active functional groups that are liable to chemical reactions; thus, chitosan derivatives can be obtained through the chemical modification of chitosan. The modification of chitosan has been an important aspect of chitosan research, showing a better solubility, pH-sensitive targeting, an increased number of delivery systems, etc. This review summarizes the modification of chitosan by acylation, carboxylation, alkylation, and quaternization in order to improve the water solubility, pH sensitivity, and the targeting of chitosan derivatives. The applications of chitosan derivatives in the antibacterial, sustained slowly release, targeting, and delivery system fields are also described. Chitosan derivatives will have a large impact and show potential in biomedicine for the development of drugs in future.

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Impact of acid type for chitosan dissolution on the characteristics and biodegradability of cornstarch/chitosan based films

Cited by 88 publications

References 47 publications

Characterization of Chitosan Films Incorporated with Different Substances of Konjac Glucomannan, Cassava Starch, Maltodextrin and Gelatin, and Application in Mongolian Cheese Packaging

Characterization of Chitosan Films Incorporated with Different Substances of Konjac Glucomannan, Cassava Starch, Maltodextrin and Gelatin, and Application in Mongolian Cheese Packaging

Reuse of Different Agroindustrial Wastes: Pinhão and Pecan Nutshells Incorporated into Biocomposites Using Thermocompression

Chitosan Derivatives and Their Application in Biomedicine

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