Food or edible material: processes – compositions – and products – Packaged or wrapped product – Packaging structure cooperating with food generated gas
Patent
1989-02-28
1990-07-24
Weinstein, Steven
Food or edible material: processes, compositions, and products
Packaged or wrapped product
Packaging structure cooperating with food generated gas
426106, 426124, 426392, 426395, 426415, 426419, 426324, A23B 7148, B65D 8120
Patent
active
049434403
ABSTRACT:
Disclosed are packaged cut product blends of vegetables salad mixtures for refrigerated storage which enjoy increased shelf life without the need for gas absorbents or anti-oxidants. The package includes a sealed imperforate container disposed within which are a quantity of perishable produce cut pieces with reduced respiratory rates in a bed having a bed depth of about 1 to 6 inches. The package includes an equilibrium headspace composition comprising by volume of 1.5 to 0.8% oxygen, 8 to 12% carbon dioxide and balance nitrogen which, surprisingly, is optimal for reduced aerobic respiration rates for substantially all cut produce blends. The package further includes a gas permeable portion such that about 18 to 32 cc. of oxygen is admittable to the package per 24 hr. per oz. of produce. In its method aspect, the present invention provides a method for reducing cell aerobic respiration rates and refrigerated packaging and storage of cut produce by flushing the container prior to sealing with a defined low oxygen high carbon dioxide initial atmosphere in a package of specified oxygen permeability.
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General Mills Inc.
O'Toole John A.
Weinstein Steven
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