Stevia is a natural is a sweetener and sugar substitute extracted from the leaves of the plant species Stevia rebaudiana. The active compounds of stevia are steviol glycosides (mainly stevioside and rebaudioside), which have up to 150 times the sweetness of sugar, are heat-stable, pH-stable, and not fermentable.
Stevia/Rebaudioside A is a white to off-white, hygroscopic fine crystal or powder having a sweet taste. It is freely soluble in water and sparingly soluble in ethanol. It is obtained from the leaves of the Stevia rebaudiana(Bertoni) plant that can be used as a general sweetener in foods. It is non-caloric natural sweetener that is approximately 300-400 times sweeter than sucrose.