Steviosides is extracted from stevia leaf. The specifications are as follows:
Stevia extract:
Steviosides: 90%, 95%, 98%
Rebaudioside A(Reb A or RA): 40%, 60%, 80%
.Non-bitter stevioside(Enzyme treated stevia, Glucosyl stevioside)
stevia extract is a sweetener from the small (Stevia rebaudiana) plants. Stevia, also called the "sweet herb of Paraguay" is a perennial shrub of the aster family, with incredibly sweet, small leaves. The dried and ground fine leaves can be used as a natural sugar substitute. The secret of Stevia is revealed in 1931. Stevia contains a compound named "Stevioside" which is 100-300 times sweeter than table sugar