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Carboxymethyl chitosan-quercetin conjugate: A sustainable one-step synthesis and use for food preservation
Year:
2023
Source of publication :
Carbohydrate Polymers
Authors :
Poverenov, Elena
;
.
Rodov, Victor
;
.
Volume :
316
Co-Authors:

Aviad Sela
Noa Shkuri
Nimrod Tish
Yakov Vinokur
Victor Rodov
Elena Poverenov 

Facilitators :
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0
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Total pages:
1
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Abstract:

Bioactive polysaccharide, carboxymethyl chitosan-quercetin (CMCS-q) was prepared by a one-step reaction utilizing Schiff base chemistry. Notably, the presented conjugation method involves neither radical reactions nor auxiliary coupling agents. Physicochemical properties and bioactivity of the modified polymer were studied and compared to those of the pristine carboxymethyl chitosan, CMCS. The modified CMCS-q demonstrated antioxidant activity by TEAC assay and antifungal activity by inhibiting spore germination of plant pathogen Botrytis cynerea. Then, CMCS-q was applied as an active coating on fresh-cut apples. The treatment resulted in enhanced firmness, inhibited browning and improved microbiological quality of the food product.

The presented conjugation method allows retaining antimicrobial and antioxidant activity of quercetin moiety in the modified biopolymer. This method can be further used as a platform for binding ketone/aldehyde-containing polyphenols and other natural compounds to form various bioactive polymers.

Note:
Related Files :
Bioactive polysaccharides
Carboxymethyl chitosan
Fresh-cut apples
quercetin
Schiff base
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More details
DOI :
10.1016/j.carbpol.2023.121084
Article number:
121084
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
64609
Last updated date:
21/06/2023 13:01
Creation date:
21/06/2023 13:01
You may also be interested in
Scientific Publication
Carboxymethyl chitosan-quercetin conjugate: A sustainable one-step synthesis and use for food preservation
316

Aviad Sela
Noa Shkuri
Nimrod Tish
Yakov Vinokur
Victor Rodov
Elena Poverenov 

Carboxymethyl chitosan-quercetin conjugate: A sustainable one-step synthesis and use for food preservation

Bioactive polysaccharide, carboxymethyl chitosan-quercetin (CMCS-q) was prepared by a one-step reaction utilizing Schiff base chemistry. Notably, the presented conjugation method involves neither radical reactions nor auxiliary coupling agents. Physicochemical properties and bioactivity of the modified polymer were studied and compared to those of the pristine carboxymethyl chitosan, CMCS. The modified CMCS-q demonstrated antioxidant activity by TEAC assay and antifungal activity by inhibiting spore germination of plant pathogen Botrytis cynerea. Then, CMCS-q was applied as an active coating on fresh-cut apples. The treatment resulted in enhanced firmness, inhibited browning and improved microbiological quality of the food product.

The presented conjugation method allows retaining antimicrobial and antioxidant activity of quercetin moiety in the modified biopolymer. This method can be further used as a platform for binding ketone/aldehyde-containing polyphenols and other natural compounds to form various bioactive polymers.

Scientific Publication
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