sweeteners on the basis of a simultaneously transglucosylated sweet glycoside mixture of stevia rebaudiana bertoni are prepared . the transglucosylation was developed in the presence of starch under the action of cyclodextrin glucanotransferase . the remaining maltodextrins are transformed to the fructose - terminated oligosaccharides by the addition of sucrose . the sweeteners are purified to not less than 98 % content of sweet glycosides and derivatives . the preparations are almost non - caloric , non - cariogenic , non - bitter , non - lingering sweeteners , which may be advantageously applied in foods , beverages , cosmetics and milk products .