Question 2 A plastic bag made of LDPE film, with a total surface area of 0.03 m, is to be used for modified headspace packaging of a tropical fruit. At 20C, the fruit has a respiration rate described by Ro = 92 x [02], where Ro is rate of O2 consumption rate (mL/kg.h) and [02] is oxygen concentration (in fraction). (i) (ii) (iii) (iv) At 10C, the O2 and CO2 permeability values of the LDPE film are 110 and 366 mL.mil/m.h.atm, respectively. If the activation energy values of the film for O2 and CO2 permeation are 30.0 and 32.0 kJ/mol, respectively, calculate O2 and CO2 permeability at 20C. (10%) If the LDPE film has a thickness of 1.0 mil, determine the weight (kg) of the fruit that should be packed in order to achieve equilibrium O2 and CO2 headspace concentrations of 2 and 6%, respectively, assuming the respiration quotient (RQ) of the fruit is 1.0 at 20C. (15%) During transportation, the packaged product was exposed to an elevated temperature at 30C. Due to the thermal abuse, the oxygen consumption rate of the fruit change to Ro = 200 x [02] and the RQ = 3.0. Determine the new equilibrium headspace O2 and CO2 concentrations (15%) Discuss the potential impacts to the product shelf-life due to the increase in temperature. Propose packaging innovations to address the issues. (10%)