*3.4. Total Phenolic (TPC) and Total Flavonoid Contents (TFC)*

Figure 7A,B presents the total phenol and flavonoid contents in the longan fruit samples. A continuous decline was observed in all treatments in terms of TPC and TFC contents, being significantly (*p* ≤ 0.05) higher in control samples. The contents of phenols and flavonoids varied slightly among the treatments during storage; however, OPP-20 and PE-20 showed relatively higher TPC and TFC contents than the other treatments.

**Figure 7.** Total phenolic (**A**) and total flavonoid (**B**) contents in longan fruit samples in different packaging films fumigated with propyl disulfide and control, stored at 12 ± 1 ◦C. Vertical bars represent means ± standard deviation (*n* = 3). Different small and capital letters show significant differences between the treatments within the same day and between the days in the same treatment, respectively, via LSD test at *p* ≤ 0.05.
