2.Main Fuction:

1. Add sweetness to foods without calories
2. Hundreds of times sweeter than sugar

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3.Description:

1. The species Stevia rebaudiana, commonly known as sweet leaf, sugarleaf, or simply stevia, is widely grown for its sweet leaves. As a sweetener and sugar substitute, stevia's taste has a slower onset and longer duration than that of sugar, although some of its extracts may have a bitter or licorice-like aftertaste at high concentrations.
2.  Rebaudioside A has the least bitterness of all the sweet compounds in the stevia plant. To produce rebaudioside A commercially, stevia plants are dried and subjected to a water extraction process. This crude extract contains about 50% rebaudioside A and is refined using ethanol, methanol, crystallization and separation technologies to separate the various glycoside molecules in the extract.

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4.Application: 

 (1) Applied in pharmaceutical field, it is usually made into tablets, capsule and granule to   warm the kidney, strengthen the spleen and enhance human immunity.

 (2) Applied in food field, it is mainly used in kinds of beverage, liquor and foods to  enhance human immunity and anti-aging.