The present invention provides a refrigerator, comprising: an adsorption container, an air compressor and a nitrogen storage tank. A sealed storage space is formed in a storage compartment of the refrigerator. The adsorption container with carbon molecular sieves disposed therein is disposed in the storage compartment. The air compressor is directly connected to the adsorption container through an air inlet pipe and configured to supply compressed air for the adsorption container in a controlled manner so as to allow the carbon molecular sieves to prepare nitrogen by means of the compressed air. A gas inlet end of the nitrogen storage tank is connected to the adsorption container, and a gas outlet end thereof is communicated with the storage space.

A zeolite formulation has been identified that is to be included in an arrangement of barrier layers allowing for the entrapment of volatile organoleptic compound (VOCs), in particular, odor causing VOCs, between the barrier layers in order to contain the release of these compounds. The entrapment technique allows for extended time to adsorb, absorb or react such VOCs before they can be absorbed by the product surrounded by the packaging. A zeolite formulation of an odor scavenger layer not having any VOC barrier layers within the film is also disclosed having the capability to contain the release of hydrogen sulfide over a period of at least 20 days.

A zeolite formulation has been identified that is to be included in an arrangement of barrier layers allowing for the entrapment of volatile organoleptic compound (VOCs), in particular, odor causing VOCs, between the barrier layers in order to contain the release of these compounds. The entrapment technique allows for extended time to adsorb, absorb or react such VOCs before they can be absorbed by the product surrounded by the packaging. A zeolite formulation of an odor scavenger layer not having any VOC barrier layers within the film is also disclosed having the capability to contain the release of hydrogen sulfide over a period of at least 20 days.

A multilayer body comprising a sealing layer (A) comprising a thermoplastic resin, an oxygen absorption layer (B) comprising a thermoplastic resin and iron powder, an odor absorption layer (C) comprising a thermoplastic resin and an inorganic base, and an oxygen barrier layer (D) having oxygen barrier properties, the layers being laminated in a described order.

The present invention provides an oxygen absorber composition containing a hydrocarbon resin; an iron particle having an average particle diameter of 1.0 m or more and 200 m or less and having a BET specific surface area of 10 m.sup.2/g or more; and an aldehyde absorber capable of absorbing at least aldehyde compound, wherein the iron particle contains iron.

Oxygen is a major quality-deteriorating factor with respect to many food products in that it may cause the growth of molds and the development of rancid off-flavors, which reduce the quality or shelf life of many food products. The present invention provides an improved food packaging and a method for prolonging the shelf life and quality of packaged foods by packaging the food in a packaging material together with a microbial oxygen absorber, such as Lactococcus spp., Streptococcus spp., Lactobacillus spp., Leuconostoc spp., Brevibacterium spp., Propionibacterium spp., and Bifidobacterium spp.

Oxygen is a major quality-deteriorating factor with respect to many food products in that it may cause the growth of molds and the development of rancid off-flavors, which reduce the quality or shelf life of many food products. The present invention provides an improved food packaging and a method for prolonging the shelf life and quality of packaged foods by packaging the food in a packaging material together with a microbial oxygen absorber, such as Lactococcus spp., Streptococcus spp., Lactobacillus spp., Leuconostoc spp., Brevibacterium spp., Propionibacterium spp., and Bifidobacterium spp.

Systems and methods for preserving oxidizable substances such as liquids or foodstuffs are disclosed. These systems incorporate a sealing device and an oxygen scavenging chemical or agent coupleable to the system. The oxygen scavenging agent can remove the oxygen from the headspace of a container such as a bottle of wine without reducing the pressure in the headspace to the extent that the flavor of the wine is adversely affected.

A humidity control device for use in maintaining the desired humidity of a closed environment, e.g., a container, while also decreasing headspace oxygen, the device including a water vapor and oxygen permeable pouch, an aqueous salt solution containing humidity controlling salts in combination with salts of ascorbic acid or isomers thereof.

A humidity control device for use in maintaining the desired humidity of a closed environment, e.g., a container, while also decreasing headspace oxygen, the device including a water vapor and oxygen permeable pouch, an aqueous salt solution containing humidity controlling salts in combination with salts of ascorbic acid or isomers thereof.