*3.2. Firmness of Longan Fruit Samples*

The peel firmness of longan fruit samples decreased with the extension of storage time. The peel firmness significantly declined in the control treatment. Among the other treatments, the firmness fluctuated and dropped at the end of storage time in each treatment, probably associated with decay incidence. In comparison to other films, OPP-20 maintained the highest level of firmness, followed by OPP-40 (Figure 5).
