▎ 摘　　要

NOVELTY - Tea preservative comprises 8-10 pts. wt. modified graphene, 4-6 pts. wt. soda lime, 0.3-0.6 pt. wt. ascorbic acid, 1-3 pts. wt. complex vitamin, 2-4 pts. wt. sodium metabisulfite, 1-1.5 pts. wt. potassium sorbate and 2-4 pts. wt. antibacterial additive. USE - As a tea preservative. ADVANTAGE - The tea preservative has high adsorption capacity, and antibacterial activity, rapid drying and oxygen removal rate, better odor removing capability, improves the quality of tea leaves, causes no harm to human body and is prepared in a safe and environmentally-friendly manner.