Glucosyl stevioside

Steviosides and iibaudioside-A. Stevioside and ribaudioside-A (13-glucosyl stevioside) both occur naturally in the plant Stevia rebaudiana, with the steviosides comprising 10-20% of the dried weight of the leaves. Ribaudioside-A may constitute as much as 60-70% of the mixture for some strains of the plant (23). While stevioside is about 150-300 times as sweet as sucrose, the flavor profile has a bitter... 

Table 1 Relative sweetness intensity of various glucosyl derivatives 26-29 of stevioside [62]...

Sweetness quality and intensity of various glucosyl derivatives of stevioside... 

Selective deacetylation of the sucrose derivative (14) with methanolic ammonia gave the 3,6 -diacetate (15) and the 3-acetate (16). j8-D-Glucosyl esters have been prepared with high stereospecificity using tributylstannyl derivatives in two ways as outlined in Scheme 4. The method was used to prepare j8-l-0-acetyl and p-nitrobenzyol derivatives from 2,3,4,6-tetra-O-benzyl-a-D-glucose and the plant /3-glucosyl ester, stevioside, from 2,3,4,6-... 

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