FRESHNESS RETAINING AGENT FOR VEGETABLE, MEAT, FISH, SHELLFISH OR THE LIKE

Title:

FRESHNESS RETAINING AGENT FOR VEGETABLE, MEAT, FISH, SHELLFISH OR THE LIKE

Document Type and Number:

Japanese Patent JPH01117744

Kind Code:

A

Abstract:

PURPOSE:To obtain the above freshness retaining agent having excellent gas adsorptivity and heat resistance, by subjecting Na and Ag ions in a crystal structure of ceramics consisting of a far infrared ray emitting substance material to ion exchange. CONSTITUTION:Na and Ag ions in a crystal structure of ceramics consisting of about 85% alumina based ceramics consisting of a far infrared ray emitting substance material, such as Mg, Ca, Fe or Ni, and about 15% other materials are subjected to ion exchange and ionized Ag is bound into the skeletal structure through ionic bonds. The resultant ceramics are then converted into a powdery form to afford the aimed freshness retaining agent having 0.5-0.9mu particle diameter. The obtained freshness retaining agent is subsequently mixed in a film material and subjected to molding processing.

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Inventors:

IWATSUKI SUNAO

Application Number:

JP27533287A

Publication Date:

May 10, 1989

Filing Date:

October 30, 1987

Export Citation:

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Assignee:

HAITETSUKU JAPAN KK

International Classes:

A23L3/34; A23B4/10; A23B4/14; A23B4/20; A23B7/00; A23B7/12; A23B7/14; A23L3/358; (IPC1-7): A23B4/10; A23B4/14; A23B7/00; A23B7/14; A23L3/34

Domestic Patent References:

JPS5554024A	1980-04-21
JPS62155935A	1987-07-10
JPS62210973A	1987-09-17
JPS57118779A	1982-07-23

Attorney, Agent or Firm:

Kato Shizutomi

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