PRESERVATIVE FOR LOW-TEMPERATURE PRESERVATION OF BIOLOGICAL MATERIALS, AND METHOD FOR PRESERVING BIOLOGICAL MATERIALS AT LOW TEMPERATURES

摘要

Disclosed are a preservative for the low-temperature preservation (low temperature signifies temperatures higher than 0°C but not more than 20°C) of biological materials, said preservative containing a flavonoid glycoside compound represented by formula (I) [in the formula, R1 and R2 are each -H or a glucose residue, with at least one being a glucose residue, and R3 to R9 are the same or different, and are each -H, -OH or an alkoxy group]; a preservation solution for the low-temperature preservation of biological materials, said preservation medium containing said preservative; and a method for preserving biological materials characterized by immersing a biological material in a solution containing a flavonoid glycoside compound represented by formula (I), and maintaining said solution at a low temperature that is higher than 0°C but not more than 20°C.