Patent ID: 7951590

Claim:
A method for preserving a human or non-human organ or animal tissue for transplantation, at in vitro and freeze-free state, comprising storing the animal tissue or organ within a liquid containing green-tea polyphenols; said green-tea polyphenols consisting essentially of catechins; and prolonged preservation being able to be accomplished by hibernation or sleeping of said animal tissue or organ, with no substantial proliferation of the tissues and/or no substantial injury to the organ so as to normally restart cell proliferation and division after the hibernation, and wherein the concentration of the green-tea polyphenols in said liquid is in a range of 0.1 wt % to 30 wt %, calculated on the basis of pure polyphenols, and wherein said liquid also contains in addition to the green-tea polyphenols, a culture or conventional storing medium for said tissue or organ selected from the group consisting of UW solution, Euro-Collins solution, glucose, phosphate, non-ionic surfactant or antibiotics.