CUT LETTUCE PACKED IN CONTAINER AND PREVENTION OF BROWNING OF LETTUCE

摘要

PROBLEM TO BE SOLVED: To obtain the subject cut lettuce resistant to browning and withering to soft state even by holding in a container by including an alcohol in the gaseous phase in the vessel at a specific concentration. ;SOLUTION: The objective cut lettuce is produced by including alcohol in the gaseous phase of the vessel holding the cut lettuce at a concentration of 2.4-6.7 mg/L. The 'cut lettuce held in a container' means a cut lettuce held (filled or sealed) in a plastic container having a lid, a bag made of a plastic film, etc., and the 'container' is e.g. a lidded tray made of a rigid plastic or foamed polystyrene or a bag made of polyethylene or nylon film. The 'lettuce' is e.g. sunny lettuce and salad lettuce and the term 'containing alcohol' means the state of alcohol (ethanol) existing in the gaseous phase in the form of gas (vapor).;COPYRIGHT: (C)1998,JPO