Journal of Food Processing & Technology

Antifungal efficacy of chitosan nanoparticles against phytopathogenic fungi and its effect on zearalenone production by Fusarium graminearum

21^st International Conference on Food Technology & Processing

October 04-06, 2018 | London, UK

Ahmed Y Gibriel, Hanem A Abdel-Aliem, Nagwa M H Rasmy, Ahmed F Sahab, Aziza A El-Nekeety and Mosaad A Abdel-Wahhab

Ain Shams University, Egypt

Posters & Accepted Abstracts: J Food Process Technol

Abstract:

Chitosan (COS) is a natural safe biopolymer that received great attention in agriculture, food, biomedical, pharmaceutical and environmental industries because of their biocompatible, biodegradable, non-toxic and non-allergenic natures. The aims of the current study were to synthesize and characterize chitosan nanoparticles (COS-NPs), to evaluate the antifungal activity of the prepared COS-NPs against phytopathogenic fungi and the inhibition of Zearalenone (ZEN) production by Fusarium graminearum. The results revealed that the deacetylation degree of COS was 86.9±0.44%, the average of molar mass was 171.41±0.29 g/mol, molecular weight was 244±7 kDa and the concentration of free amino groups was 0.05±0.019 mol/L and the prepared COS-NPs showed the nanorod form with rough nature and particle size was around 180 nm. COS-NPs showed an excellent antifungal activity against Alternaria tenuis, Aspergillus niger, A. flavus, Beauveria bassiana, Fusarium graminearum, Fusarium oxysporum, Penicillium sp. and Sclerotium rolfsii in dose dependent manner. At a concentration of 800 ppm, it succeeded to prevent ZEN by Fusarium graminearum. It could be concluded that COS-NPs is a promise candidate as safe antifungal capable for the prevention of ZEN production.

Biography :

E-mail: gibriel2003@yahoo.com