Patulin in tomatoes and the inhibitory capacity of their phenolic extracts against Penicillium expansum

[Display omitted] •PAT was found in tomato samples from conventional and organic management.•Higher PAT concentration was found in sample of Cherry tomato from conventional grown.•Phenolic extracts of conventionally grown tomatoes were more efficient to fungal inhibit growth.•Crop management affects...

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Published in:Food research international 2022-12, Vol.162 (Pt B), p.112085, Article 112085
Main Authors: Rodrigues, Marcy Heli Paiva, Marques, Carolina Garcia, de Almeida Senna, Caroline, Cerqueira, Maristela Barnes Rodrigues, Kupski, Larine, Furlong, Eliana Badiale
Format: Article
Language:English
Subjects:
Acidity
Antifungal activity
Conventional grown
Fruit
Organic grown
Patulin
Penicillium
Phenols - pharmacology
Solanum lycopersicum
Varieties
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Summary:[Display omitted] •PAT was found in tomato samples from conventional and organic management.•Higher PAT concentration was found in sample of Cherry tomato from conventional grown.•Phenolic extracts of conventionally grown tomatoes were more efficient to fungal inhibit growth.•Crop management affects the defense mechanisms of tomatoes against fungal contamination. This study aimed to determine Patulin (PAT) in samples of organically and conventionally grown tomato varieties, to correlate it with their phenolic profile and at evaluating effects of phenolic extracts of tomato samples against the Penicillium expansum CCT 7549 strain. Four varieties of tomatoes (Cherry, Khaki, Italian and Long Life) subject to conventional and organic management were collected in markets in the south of Brazil. PAT was determined in samples by validated method Matrix Solid Phase Dispersion (MSPD) with detection in HPLC-PDA. Titratable acidity, phenolic profile and antifungal activity (minimum inhibitory concentration - MIC and minimum fungicidal concentration - MFC) against P. expansum were determined. In most tomatoes PAT was found at levels that were below the Maximum Recommended Level (MRL = 50 µg/kg). Samples of conventionally grown Cherry tomato showed high acidity and PAT contamination, whose correlation was confirmed by the Principal Component Analysis (PCA). Phenolic extracts of tomatoes subject to conventional management were more efficient to inhibit P. expansum, a fact that may be explained by the content of caffeic acid. However, since PAT production was not inhibited in fruit, it is recommended that PAT should be monitored and a new management strategy should be investigated.
ISSN:0963-9969
1873-7145
DOI:10.1016/j.foodres.2022.112085