Abstract

This manuscript describes antifungal, structural, thermal and morphological properties of anovel, eco-friendly bioplastic film, based on poly(butylenesuccinate) and cavoxin, a chalconephytopathogenic metabolite, isolated from cultures by the fungus Phoma cava and included insidethe biodegradable polymeric matrix. The antagonistic activity of the film explored against twofungal food contaminants Penicilliumroqueforti and Aspergillusniger, highlighted that cavoxin wasfungicide at MIC concentrations. The chemico-physical analysis were performed on films beforeand after antifungal activity. Thermal analysis evidenced both the higher thermal stability of poly(butylenesuccinate) and cavoxin blend and the sharp nucleating action of cavoxin on thepolymer. Infrared spectroscopy highlighted the presence of physical interaction between thepolar groups of the blend components, whereas gel permeation chromatography highlighted thatthe hydrolytic effect of cavoxin on poly(butylenesuccinate) was responsible for the diffusion andreleasing of the biomolecule from the matrix and UV-Vis spectroscopy provided quantitativeinformation of release kinetics. Finally, morphological analysis confirmed both the polymericsurface hydrolysis exerted by cavoxin, and the adhesion of fungal spores on films after contactoccurred during the antifungal assay.

Autore Pugliese

• Valerio Francesca , Lavermicocca Paola , Di Biase Mariaelena

Tutti gli autori

• G. Santagata ; F. Valerio ; A. Cimmino ; G. Dal Poggetto ;M. Masi ; M. Di Biase ; M. Malinconico ; P. Lavermicocca ;A. Evidente

Titolo volume/Rivista

European Polymer Journal

Anno di pubblicazione

2017

ISSN

0014-3057

ISBN

Non Disponibile

Numero di citazioni Wos

Nessuna citazione

Ultimo Aggiornamento Citazioni

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Numero di citazioni Scopus

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Ultimo Aggiornamento Citazioni

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Settori ERC

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Codici ASJC

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