Effects of chitosan molecular weight and degree of deacetylation on the properties of gelatine-based films

Liu, Zunying; Ge, Xianping; Lu, Yuan; Dong, Shiyuan; Zhao, Yuanhui; Zeng, Mingyong

doi:10.1016/j.foodhyd.2011.06.008

Cited by 169 publications

(80 citation statements)

References 36 publications

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“…3. These were similar to the reports of Zhang et al (2011) and Liu et al (2012), who detected two diffraction peaks at around 7-8 o and 17-18.5 o for walleye pollock skin gelatin, and 7.42 o and 19.58 o for grass carp fish scale gelatin, respectively. As Table 1 shows, modified FSG presents characteristic diffraction peaks at around 7-9 o and 17-20 o , but the intensity is lower than that of control.…”

Section: X-ray Diffraction Measurementssupporting

confidence: 91%

Comparison of rheological behaviors and nanostructure of bighead carp scales gelatin modified by different modification methods

Huang

Wang

et al. 2017

J Food Sci Technol

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In this study, microbial transglutaminase (MTGase) and pectin were compared to modify bighead carp (Hypophthalmichthys nobilis) scale gelatin. The functional properties of modified fish scales gelatin (FSG) were largely improved, including melting temperature and rheological behavior. While, modification methods decreased the triple-helix content and destroyed the single left-hand helix chain of modified FSG as investigated by X-ray diffraction. MTGase could induce the denser and finer gels network, but had none significant effect on nanostructural properties of fish gelatin. Pectin inserted itself into the fish gelatin gels network and caused aggregations, forming crystalline peaks and various nanostructures. In particular, compared with pectin modified FSG, MTGase produced FSG with lower storage modulus and apparent viscosity, but higher gel points and melting points.

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Section: X-ray Diffraction Measurementssupporting

confidence: 91%

Comparison of rheological behaviors and nanostructure of bighead carp scales gelatin modified by different modification methods

Huang

Wang

et al. 2017

J Food Sci Technol

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“…This band was due to the vibration of C=O which exist in cellulose molecule which overlapped with carbonyl stretch in amides (for chitosan and paper coated with chitosan). However, band at 1555-1558 cm -1 which was only observed in chitosan and paper coated with chitosan samples were due to the vibrating NH groups in amino groups and stretching vibration of C-N (Lina et al 2010;Liu et al 2012). The shifting of the carbonyl band to a lower frequency from 1636 to 1648 cm −1 suggested that these groups were involved in hydrogen bonding with the cellulose functional groups.…”

Section: Scanning Electron Microscopy (Sem)mentioning

confidence: 91%

“…Chitosan, a polymer of 1,4 linked β-D-glucosamine and N-acetyl glucosamine units, is prepared by deacetylation of chitin. Chitosan as a linear polymer of 2-amino-2-deoxy-β-D-glucan, is a deacetylated form of chitin, a naturally occurring cationic biopolymer (Cissé et al 2012;Liu et al 2012). The polymer is formed after the completion of deacetylation process.…”

Section: Introductionmentioning

confidence: 99%

Mechanical and Antibacterial Properties of Paper Coated with Chitosan

Zakaria¹,

Chia²,

Ahmad

et al. 2015

JSM

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“…In contrast, hydrophobic surfaces cause strong adsorption and then denaturation of proteins, with subsequent poor cell adhesion [Bačáková et al, 2007]. Furthermore, it is known that the degree of acetylation and the molecular weight of CHT affect physicochemical properties of the CHT-based biomaterials [Liu et al, 2012]. Indeed, in our study, the deacetylation degree of CHT (75%) influences the percentage of amino groups and consequently the hydrophilicity of CHT membranes.…”

Section: Discussionmentioning

confidence: 58%

Neuronal Differentiation Modulated by Polymeric Membrane Properties

Morelli

Piscioneri²,

Drioli³

et al. 2017

Cells Tissues Organs

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In this study, different collagen-blend membranes were successfully constructed by blending collagen with chitosan (CHT) or poly(lactic-co-glycolic acid) (PLGA) to enhance their properties and thus create new biofunctional materials with great potential use for neuronal tissue engineering and regeneration. Collagen blending strongly affected membrane properties in the following ways: (i) it improved the surface hydrophilicity of both pure CHT and PLGA membranes, (ii) it reduced the stiffness of CHT membranes, but (iii) it did not modify the good mechanical properties of PLGA membranes. Then, we investigated the effect of the different collagen concentrations on the neuronal behavior of the membranes developed. Morphological observations, immunocytochemistry, and morphometric measures demonstrated that the membranes developed, especially CHT/Col30, PLGA, and PLGA/Col1, provided suitable microenvironments for neuronal growth owing to their enhanced properties. The most consistent neuronal differentiation was obtained in neurons cultured on PLGA-based membranes, where a well-developed neuronal network was achieved due to their improved mechanical properties. Our findings suggest that tensile strength and elongation at break are key material parameters that have potential influence on both axonal elongation and neuronal structure and organization, which are of fundamental importance for the maintenance of efficient neuronal growth. Hence, our study has provided new insights regarding the effects of membrane mechanical properties on neuronal behavior, and thus it may help to design and improve novel instructive biomaterials for neuronal tissue engineering.

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Effects of chitosan molecular weight and degree of deacetylation on the properties of gelatine-based films

Cited by 169 publications

References 36 publications

Comparison of rheological behaviors and nanostructure of bighead carp scales gelatin modified by different modification methods

Comparison of rheological behaviors and nanostructure of bighead carp scales gelatin modified by different modification methods

Mechanical and Antibacterial Properties of Paper Coated with Chitosan

Neuronal Differentiation Modulated by Polymeric Membrane Properties

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