To date, microperforated films technologies and porous film products are available, but these technologies are mainly owned by the manufacturers and are therefore considered proprietary. These include, for instance, P-Plus, FreshHold, and Fresh Pak (Zagory, 1997), with a microperforation diameters of 40-200 um. Devel opment of microperforated biaxially oriented polypropy- lene (BOPP) films with varying numbers of micropores 50 um pore diameter) could result in a wide range of OTR and WVTR, as shown in Table 7.1. As reviewed by Sandhya (2010), microperforated films could be suc cessfully used to extend shelf life of several high-respiring fruits. For fresh tropical/subtropical fruits, early study ex hibited clear benefits of high gas-permeable film in retain ing freshness quality and prolonging shelf life of "Kluai Khai' banana for 30 days (Chaiwong et al., 2005). After removing bananas from the package, they developed a nor- mal ripening process with no off-odor and no off-flavor. Microperforated B films were also effective in extend ing shelf life of rambutan to 14 days, as compared to 3 and 8 days of normal BOPP film and BOPP film with macro holes, respectively (Winotapun et al., 2010a). Low weight loss of 2% and delayed color change of the skin were observed