METHOD FOR RETAINING FRESHNESS OF BROCCOLI AND ITS PACKAGE

摘要

PURPOSE: To retain the freshness of broccoli to the consumption stage without deteriorating the freshness by hermetically sealing and packaging the broccoli in a film having micropores, maintaining the O₂ and CO₂ concentrations in the pouch within specific ranges and enabling the MA packaging in distribution at ordinary temperature. ;CONSTITUTION: A broccoli is hermetically sealed and packaged in a mono- or multilayerd film having 100-300μm average diameter of micropores and 100-900cc/24hr.atm oxygen and gaseous carbon dioxide permeability per pore, 10-500 pores per m², 10000-100000cc/m² oxygen and gaseous carbon dioxide permeability at 23°C and 100-300g/m².24hr water vapor permeability at 40°C and 90%RH to maintain the oxygen concentration in the pouch at 3-15% and gaseous carbon dioxide concentration at 6-18%. Thereby, the packaging with retained freshness can be carried out by the modified-atmospheric(MA) packaging in distribution of the broccoli at ordinary temperature. The deterioration in the freshness is controlled to the consumption stage. As a result, the broccoli is preserved in high freshness.;COPYRIGHT: (C)1993,JPO&Japio