New gel from a water-soluble Carboxymethyl chitosan-Cinnamaldehyde Schiff base derivative as an effective preservative against soft rot in ginger.
Food Chem
; 461: 140970, 2024 Dec 15.
Article
in En
| MEDLINE
| ID: mdl-39213732
ABSTRACT
Ginger, valued for its culinary and medicinal properties, suffers substantial production loss-up to 90 %-due to fungal soft rot. To combat this, we have developed an environmentally sustainable antifungal polysaccharide gel derived from a water-soluble Schiff base of O-carboxymethyl chitosan (CMC) and cinnamaldehyde (CIN). Terpene incorporation was confirmed via various characterization techniques, including Fourier transform infrared (FT-IR), pH-dependent release, solubility, thermogravimetric analysis, and UV-vis spectra. Results showed successful grafting of CIN onto the polysaccharide, at a CINCMC ratio of 120 mg/g. In vitro evaluation demonstrated significant antifungal activity against F. oxysporum, with a MIC value of 159.25 µg/mL. Application of the CMC=CIN gel to ginger rhizomes inhibited spore germination in all evaluated wounds, enhancing gloss and appearance. These findings validate the efficacy of this novel, environmentally friendly gel in preventing ginger loss caused by fungal infections.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Schiff Bases
/
Acrolein
/
Zingiber officinale
/
Chitosan
/
Gels
Language:
En
Journal:
Food Chem
Year:
2024
Document type:
Article
Affiliation country:
España
Country of publication:
Reino Unido