Received: 24-10-2013 / Accepted: 12-02-2014
Stevioside and Rebaudioside A are two major sweeterners of the diterpene Steviol glycosides compounds derived fromStevia (Stevia rebaudiana) leaves. In this study, the levels of Stevioside and Rebaudioside A in the dried leaves of 4 sweet grasses grown in Vietnam weredetermined by high liquid performance chromatography and compared with theKorean sweet grass. Stevioside content in dried leaves of these Steviavarieties ranged from 2.13% to 7.72% and Rebaudioside A (RebA) changed from 2.05% to 9.32%. In particular, the Vietnamese sweet grass S. rebaudianaS77 had the highest STG concentration (11.53%). This is a potential material for production of sweeteners using in food processing technology. In addition, other nutritional components of S. rebaudiana S77 stevia leaf has also been identified, including protein, lipid, carbohydrates and reducing sugars.