Identification of a Collletotrichum species from mango fruit and its in vitro control by GRAS compounds

The fungus Colletotrichum sp. is the causal agent of anthracnose in mango fruit and leads to substantial postharvest losses (>30 %). Efficient control agents continue be investigated reduce incidence this pathogen, preferably a biological-organic nature. objective work was evaluate vitro application commercial-grade generally recognized as safe (GRAS) compounds chitosan, hydrogen peroxide, acetic acid, peracetic species isolated from fruit. commercial chitosan (1.5 % 2.0 %) confirmed its antifungal effect, with an average inhibition 34 %, no significant difference shown respect reactive grade chitosan. Hydrogen acid completely inhibited development C. asianum at concentrations > 1.0 %. Each GRAS caused morphological damage spores, including loss turgidity, intracellular disorder, effusion liquid cytoplasm, total integrity. Scanning electron microscopy mycelia, collapsed dehydrated structures due exposure agents. Overall, showed effect on growth different stages their development.