单词	stevioside
释义	stevioside /ˈstiːvɪə(ʊ)sʌɪd / noun [mass noun] A sweet compound of the glycoside class obtained from the leaves of a Paraguayan shrub and used as a food sweetener. The shrub is Stevia rebaudiana (family Compositae). The substances responsible for the plant's sweetness are chemicals called glycosides, primarily one dubbed stevioside, which are concentrated in the leaves.... The green leaves of this plant contain large amounts (up to 5 percent of dry weight) of stevioside, a sweetener estimated to be 300 times as sweet as table sugar. In the past 10 years, the United States has three times vetoed applications to use stevioside as a food additive, and the agent has suffered the same fate in European Union, Canada and Singapore. Origin 1930s: from the genus name Stevia (see stevia).
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