*3.1. Weight Loss, Decay Incidence, and Pericarp Browning*

An increase in weight loss was observed with storage time. Weight loss was significantly higher in control samples throughout the storage time, while in all other packaged samples no significant differences were observed until day 9 (Figure 2). From day 12 onward, some differences in weight loss were observed. Among all the treatments, the lowest weight loss was found in OPP-20. Statistics within the storage intervals also showed that weight loss increased significantly on each quality test day in each treatment; however, OPP-20 comparatively prevented the loss in weight more than other treatments (Figure 2). No decay symptoms were found in any treatment until day 6, except PE-60 and control, which showed decay rates of 3.91% and 6.87%, respectively. On day 9, DI increased in all treatments, being significantly (*p* ≤ 0.05) higher in the control, followed by PE-20 and PE-40. Due to the high DI rate, the control treatment was discarded on day 9 (70.62%), while the storage of PE-60 and OPP-60 and PE-20 and PE-40 treatments was discontinued on day 12 and day 15, respectively (Figure 3). Among all treatments, the lowest DI rates were observed in OPP-20 and OPP-40, which extended the longan storage life to up to 18 days (Figure 3). Pericarp browning (BI) was gradually enhanced in all treatments. BI was significantly (*p* ≤ 0.05) higher in control followed by PE treatments. Among the OPP films, OPP-20 and OPP-40 maintained lower BI rates than all other packaging films during the entire storage period (Figure 4).

**Figure 2.** Weight loss rates (%) of longan fruit samples in different packaging films fumigated with propyl disulfide and control, stored at 12 ± 1 ◦C. Vertical bars represent means ± standard deviations (*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.

**Figure 3.** Decay incidence rates (%) of longan fruit samples in different packaging films fumigated with propyl disulfide and control, stored at 12 ± 1 ◦C. Vertical bars represent means ± standard deviations (*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.

**Figure 4.** Pericarp browning rates of longan fruit samples in different packaging films fumigated with propyl disulfide and control, stored at 12 ± 1 ◦C. Vertical bars represent means ± standard deviations (*n* = 3). Different small and capital letters show significant differences (*p* ≤ 0.05) between the treatments within the same day and between the days in the same treatment, respectively, via LSD test at *p* ≤ 0.05.
