Patulin distribution in the tissue of Penicillium expansum-contaminated Fuji and Golden apples

Sonia Marín (1) , Hector Morales (2) , Hassan Ahmed Hassan Hasan (3) , Antonio J. Ramos (2) , Vicent Sanchis (2)

1 Food Technology
2 Food Technology
3 Botany

This work aimed to assess the extent of patulin contamination in Penicillium expansum infected apples stored at room temperature for short periods of time and its relationship with apple variety (Golden or Fuji), degree of ripeness, and size of lesions. Inoculated apples were incubated at 20°C. Cylindrical samples were taken around the lesions and cut into 0.5 cm thick sections from which patulin was analysed in both the sound and the decayed tissue. Higher accumulation of patulin occurred in Golden apples with less ripened apples showing higher concentrations. Total accumulated patulin was similar or higher in 4-cm lesioned apples than in 2-cm ones, although a decrease in patulin concentration was observed in the older sections of the lesions. Patulin accumulation occurred in a short period of time at room temperature thus stand-by periods before processing should be minimised. About 2-6% of total patulin was found to migrate to the surrounding sound tissue thus trimming apple tissue around the rotten part may be a good preventive practice for apple derivatives production.

Mots clés: Life Sciences

Sonia Marín, Hector Morales, Hassan Ahmed Hassan Hasan, Antonio J. Ramos, Vicent Sanchis. Patulin distribution in the tissue of Penicillium expansum-contaminated Fuji and Golden apples. Food Additives and Contaminants, 2006, 23 (12), pp.1316-1322. ⟨10.1080/02652030600887610⟩. ⟨hal-00577482⟩