▎ 摘　　要

NOVELTY - Low-temperature sterilization of plant extracts involves passing liquid to be sterilized through the graphene sterilized material to obtain sterilized liquid and storing. The graphene sterilization material is one or more of graphene oxide, fluorinated graphene, fluorinated graphene oxide, and graphene composite sterilized material. The graphene composite sterilized material is one or more of graphene oxide/silver nanoparticles composite material, graphene oxide quantum dot/silver nanoparticles composite material, graphene oxide/ gamma -ferric oxide Nan composite material, graphene oxide quantum dots/ferrous ferric oxide composite, graphene oxide/copper oxide nanocomposite and zinc oxide/graphene oxide composite. USE - Low-temperature sterilization of plant extracts. ADVANTAGE - The method uses graphene material having sterilizing function to carry out liquid sterilization at room temperature, which prevents thermally unstable substances in the liquid from being degraded. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for low-temperature sterilization device, which comprises pump-in valve, cryogenic sterilization column comprising sterilization bag comprising graphene sterilized material and reservoir.