Correlation between the sorption of dissolved oxygen onto chitosan and its antimicrobial activity against Esherichia coli

Gylienė, Ona; Servienė, Elena; Vepštaitė, Iglė; Binkienė, Rima; Baranauskas, Mykolas; Lukša, Juliana

doi:10.1016/j.carbpol.2015.05.068

Cited by 12 publications

(10 citation statements)

References 33 publications

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“…Chitosan is a linear polysaccharide composed of b-(1,4)-linked amino-2deoxy-D-glucosamine monomers, the deacetylated derivative of the chitin, containing amine, hydroxyl and acetamide groups (Gylienė et al, 2015). The structure of chitosan is shown in Fig.…”

Section: Chitosanmentioning

confidence: 99%

“…10. Its structure is usually characterized by the deacetylation degree (DD) and molecular weight (MW) which determine the number of functional groups in chain (Gylienė et al, 2015). Chitosan and its derivatives have been commonly used as adsorbents to remove heavy metal ions from industrial wastewater, due to the chelating ability of chitosan with metal ions resulting from the amine and hydroxyl groups Gylienė et al, 2015).…”

Section: Chitosanmentioning

confidence: 99%

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The depression of pyrite in selective flotation by different reagent systems – A Literature review

Peng

Lauten³

2016

Minerals Engineering

199

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Section: Chitosanmentioning

confidence: 99%

Section: Chitosanmentioning

confidence: 99%

The depression of pyrite in selective flotation by different reagent systems – A Literature review

Peng

Lauten³

2016

Minerals Engineering

199

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“…The activity is also modulated by the culture medium composition and it is different in laboratory media and in foods [95,98,134]: lipids, proteins, and divalent metal cations can bind to CS and prevent its interaction with target microbes [103]. Furthermore, Gylienė et al (2015) [135] suggest that dissolved oxygen can strongly increase the antiseptic activity of CS. The medium turbidity should also be considered, as CS binding to medium particles may render it inactive against microbes [93,95,98,136].…”

Section: Antimicrobial Functionsmentioning

confidence: 99%

Modification of Chitosan for the Generation of Functional Derivatives

et al. 2019

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Today, chitosan (CS) is probably considered as a biofunctional polysaccharide with the most notable growth and potential for applications in various fields. The progress in chitin chemistry and the need to replace additives and non-natural polymers with functional natural-based polymers have opened many new opportunities for CS and its derivatives. Thanks to the specific reactive groups of CS and easy chemical modifications, a wide range of physico-chemical and biological properties can be obtained from this ubiquitous polysaccharide that is composed of β-(1,4)-2-acetamido-2-deoxy-d-glucose repeating units. This review is presented to share insights into multiple native/modified CSs and chitooligosaccharides (COS) associated with their functional properties. An overview will be given on bioadhesive applications, antimicrobial activities, adsorption, and chelation in the wine industry, as well as developments in medical fields or biodegradability.

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“…For the coexisting anions, ClO 2 − also exhibited a prominent effect on the removal performance of magnetic composite, which might compete with the cationic charges of PEI/chitosan cationic copolymers and then decrease the active sites of the magnetic composite. It is interesting to note that chitosan and PEI has been known for their antibacterial activity against a wide range of microorganisms 26 27 . Thus, the amount of sodium hypochlorite could be decreased due to the antibacterial effectiveness of magnetic composites.…”

Section: Resultsmentioning

confidence: 99%

Environmentally friendly chitosan/PEI-grafted magnetic gelatin for the highly effective removal of heavy metals from drinking water

Zhou

Huang

et al. 2017

Sci Rep

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The development of environmentally friendly sorbents with a high adsorption capacity is an essential problem in the removal of heavy metals from drinking water. In this study, magnetic gelatin was prepared using transglutaminase as a cross-linker, which could only catalyze an acyl-transfer reaction between lysine and glutamine residues of the gelatin and not affect other amino groups. Therefore, it was beneficial for the further modification based on the amino groups, and did not affect the spatial structure of gelatin, which can effectively prevent the embedding of active sites in the polymer matrix. After modification with the chitosan/polyethylenimine copolymers, the numbers of amino groups was greatly increased, and the magnetic composites exhibited a high adsorption capacity, excellent water compatibility and simple magnetic separation. The adsorption capacities of lead and cadmium were 341 mg g−1 and 321 mg g−1, respectively, which could be used for the removal of metal ions in drinking water.

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Correlation between the sorption of dissolved oxygen onto chitosan and its antimicrobial activity against Esherichia coli

Cited by 12 publications

References 33 publications

The depression of pyrite in selective flotation by different reagent systems – A Literature review

The depression of pyrite in selective flotation by different reagent systems – A Literature review

Modification of Chitosan for the Generation of Functional Derivatives

Environmentally friendly chitosan/PEI-grafted magnetic gelatin for the highly effective removal of heavy metals from drinking water

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