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Improving the properties of chitosan as support for the covalent multipoint immobilization of chymotrypsin
(American Chemical Society, 2008-07)
Changing gel structure and immobilization conditions led to a significant improvement in the covalent multipoint attachment of chymotrypsin on chitosan. The use of sodium alginate, gelatin, or κ-carrageenan, activation ...
Development of Biodegradable Films Based on Chitosan/Glycerol Blends Suitable for Biomedical Applications
(Omics International, 2016-12)
In the present work, chitosan/glycerol blends were used to prepare biodegradable films with potential applicationin dermal treatment. While the presence of glycerol gives the hydrating effect, the chitosan characteristics ...
Hexavalent chromium removal in contaminated water using reticulated chitosan micro/nanoparticles from seafood processing wastes
(Elsevier, 2015-07)
Chitosan particles (CH) were obtained from seafood processing wastes (shrimp shells) and physicochemically characterized; deacetylation degree of CH was measured by Infrared Spectroscopy (FTIR) and potentiometric titration; ...
Signal transduction events mediating chitosan stimulation of anthraquinone synthesis in Rubia tinctorum
(Elsevier Ireland, 2004-12)
The signalling mechanism by which chitosan increases anthraquinones in Rubia tinctorum L. is largely unknown. We recently showed that the effects of the elicitor require activation of the PLC/PKC cascade. In view of the ...
Corn Starch‐Chitosan Proportion Affects Biodegradable Film Performance for Food Packaging Purposes
(Wiley VCH Verlag, 2021-02)
This work proposes an advance towards the scaling of biodegradable filmsbased on corn starch and chitosan, considering the relevant film propertiesthat condition their use for food packaging and their economic feasibility. ...
Involvement of G‐proteins in chitosan‐induced Anthraquinone synthesis in Rubia tinctorum
(Wiley Blackwell Publishing, Inc, 2006-12)
Elicitation with chitosan (200 mg/l) significantly stimulates (100%) anthraquinone (Aq) synthesis in Rubia tinctorum L. cultures, but the mechanism of elicitation is largely unknown.We recently showed that the effects of ...
Reactive dyes remotion by porous TiO2-chitosan materials
(Elsevier Science, 2008-04)
In this work, the aim was to evaluate the remotion (adsorption plus degradation) of two reactive dyes, Methylene Blue (MB) and Benzopurpurin (BP), from aqueous solutions by the utilization of TiO2-chitosan microporous ...
Vanillin as a natural cross-linking agent in chitosan-based films: Optimizing formulation by response surface methodology
(Elsevier, 2019-06)
One way of improving mechanical and water barrier properties of chitosan films is through cross-linking reactions. Cross-linking agents usually used for this purpose include glutaraldehyde, glyoxal, and formaldehyde, which ...
A study of the structural changes in a chitosan matrix produced by the adsorption of copper and chromium ions
(Elsevier, 2019-10-15)
A study of the structural changes at micro- and nano-scale in a chitosan matrix after the adsorption of different metal ions is presented. Toward this aim, samples of chitosan films soaked in different concentrations of ...
Preliminary study on the use of chitosan as an eco-friendly alternative to control fusarium growth and mycotoxin production on maize and wheat
(MDPI AG, 2019-03)
The objectives of the present study were to determine the combined effects of chitosan and water activity (a W ) on growth and mycotoxin production in situ on the two most important Fusarium species (F. proliferatum and ...