Research Progress on the Causes of Off-flavors in Stevioside and Improvement Strategies
Stevioside,a natural sweetener derived from Stevia rebaudiana,is widely used in the food,pharmaceutical,and brewing industries due to its high sweetness and low-calorie characteristics,making it an ideal sugar substitute.However,stevioside exhibits noticeable off-flavors such as bitterness and licorice aftertaste despite its high sweetness.To address the issue of off-flavors in stevioside,this paper elucidates the causes of these flavors from the aspects of stevioside extraction process and stevioside glycoside structure.It discusses existing improvement strategies from the optimization of stevioside production processes and the development of new high-yield Reb D and Reb M.The future development and application prospects of stevioside are also summarized.
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