Evaluation of Plastic Packages for Guava Refrigerated Preservation

摘要

Guavas cv. 'Kumagai' were in several plastic materials and stored at 10℃ and 85-90/100 relative humidity (RH) for 7, 14, 21 and 28 days (+3 days at 25℃). The plastic materials studied were: multilayer co-extruded polyolephine film with selective permeability (PSP), low-density polyethylene film (LDPE), LDPE film with mineral incorporation (LDPEm) and heat-shrinkable polyolephine film (SHR). Guavas not packed were taken as control samples. The physicochemical characteristics of the fruits, O_2 and Co_2 transmission rates of the packaging materials and gas composition at the package headspace were evaluated.