Strawberries are susceptible to decay and destruction while being harvested and stored. This study had the following objectives: (1) the documentation of fungi and mycotoxin production associated with infected strawberry fruits; (2) the evaluation of the primary phytochemicals of and by gas chromatography-mass spectrometry (GC-MS) and Fourier transform infrared (FT-IR) analysis to identify the active chemical composition of the seaweed extracts; and (3) the assessment of the antifungal activity of five extracts from brown seaweeds both in vitro and in vivo against fungal infections on fresh fruit under post-harvest conditions. The most common fungi were 14.36%, 38.29%, and 16.88%. acetone extract had the highest in vitro antifungal activity. The methanol extracts of both and were effective against the pathogenicity and aggressiveness (in vivo) on post-harvest strawberry fruits. could produce botrydial and dihydrobotrydial toxins with concentrations of 8.14 µg/mL and 4.26 µg/mL, respectively. could produce ochratoxin A with a concentration of 10.05 µg/mL. The present study demonstrates that the extracts of macroalgae and contain secondary metabolites and antioxidants, indicating their potential utilization in antifungal applications.
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| http://dx.doi.org/10.3390/plants13223115 | DOI Listing |
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