*2.1. Sampling*

The oranges used in the study were purchased from the local market in Bursa in 2018, it was indicated that oranges were cultivated from Antalya region in Turkey in the same year [2].

Prior to analysis, samples were kept in the cold storage room at 5–7 ◦C and 90–95% relative humidity. Before pesticide treatment at laboratory conditions, three laboratory samples (C) were allocated as blank samples. It was found that control samples contained only one pesticide (imazalil) at 0.01 mg/kg level [2].

The moisture level of the control samples "C" was measured as 94.05% (MA150 Sartorius, Göttingen, Germany). The weights of each orange unit in laboratory sample "C" varied between 223 g and 246 g. Therefore, orange samples were defined as medium-sized products according to legal regulations. In this manner, in total 30–35 kg of orange samples were used, to make approximately 1 kg laboratory samples (at least 10 units for raw orange samples) depending on the type of the process [16].
