**4. Conclusions**

Patulin contamination in fruits and derived products is a worldwide problem due to its risky toxicity. An HPLC method with UV detection for the determination of PAT, which is fast, reliable, and sensitive, was successfully validated and could be applied for routine analysis and monitoring of fruits, pulps, juices, and derived products. PAT concentrations were higher in mango than in orange samples, and greater in whole fruits than in derived products such as juice, pulp, and jam. A significant percentage of mango samples exceeded the maximum levels established for patulin. Further studies are needed to develop strategies that are helpful to reduce the presence of patulin-producing fungi in these commodities. Therefore, a better understanding of the underlying mechanisms of patulin toxigenesis in mango is needed. Regular monitoring of fruits and their products during the harvest and processing stages is recommended to enhance the confidence of end users. The results of the present study would be highly beneficial for the horticulturists, processors, traders, and consumers.

#### **5. Materials and Methods**
