DRINK FROM PSIDIUM GUAJAVA LEAF

摘要

PROBLEM TO BE SOLVED: To provide a Psidium guajava leaf tea preventing the deterioration of an α-amylase-inhibiting activity during storage. SOLUTION: This Psidium guajava leaf tea is obtained by adding 0.025-0.05 wt.% of vitamin C to the extract solution of Psidium guajava leaves. The Psidium guajava leaf tea can widely be used as a health drink, because the α-amylase-inhibiting activity of the drink is not deteriorated during storage.