Stevioside is a new typed natural sweetener extracted from the composite herbage ---stevia. Stevioside is a kind of good sweetener instead of cane sugar that can treat diabetes, hypertension partly and can also treat adiposity, cardiovascular disease, gastritis and acid stomach as an auxiliary method. The stevioside is a stable and non fermented substance with fresh status for a long term and no metabolism, cumulation and poison in the body, so its safety was passed inspection of international organization FAO and WHO. The stevioside is used widely in Japan, Korea and European and American developed nations and regions and is renowned as the third sugar resource in the world.
A3 glucoside is the main ingredient of stevioside ,its appearance is white, petty yellow incompact powder or crystal with the feature of high sweet, low hot energy .Its sweet degree is 200-300 times as much as cane sugar and the calorie is 1/300 of cane sugar. The stevioside can reduce bitterness and unsafe factors made by the saccharin and other chemosynthesis sweeteners.