Rebaudioside A
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| General | ||||||||||||||||
| Surname | Rebaudioside A | |||||||||||||||
| other names |
(4α) -13 - [(2- O -β- D -Glucopyranosyl-3- O -β- D -glucopyranosyl-β- D -glucopyranosyl) -oxy] kaur-6-en-8-carboxylic acid β- D - glucopyranosyl ester |
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| Molecular formula | C 44 H 70 O 23 | |||||||||||||||
| Brief description |
White dust |
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| properties | ||||||||||||||||
| Molar mass | 967.01 g mol −1 | |||||||||||||||
| Physical state |
firmly |
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| Melting point |
242-244 ° C |
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| solubility |
soluble in water |
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| As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . | ||||||||||||||||
Rebaudioside A is a steviol - glycoside and is found in the leaves of stevia plants, mostly the sweet herb Stevia rebaudiana . Together with stevioside, it is the main component of the sweetener mixture stevia , which - depending on the growing area and plant type - can contain seven to ten other steviol glycosides. The positive sensory properties of rebaudioside-A should be emphasized. It is the sweetest and the least bitter glycoside in plants. A high proportion of the substance is therefore desirable in stevia products. At present, a purity of 98% represents the highest possible concentration of rebaudioside A in stevia products, because current methods do not completely remove the other steviol glycosides.
Rebaudioside-A was first isolated in 1900 by Ovidio Rebaudi and later named in his honor.
Web links
- UNIVERSITY OF CALIFORNIA, LOS ANGELES: Toxicology of Rebaudioside A: A Review (PDF; 612 kB)
Individual evidence
- ↑ a b c d e Data sheet Rebaudioside A, ≥96% (HPLC) from Sigma-Aldrich , accessed on April 19, 2012 ( PDF ).
- ^ Wissenschaft-Online-Lexika: Entry on "Stevia rebaudiana" in the Lexicon of Medicinal Plants and Drugs. Accessed on November 16, 2011.
- ↑ Venkata Sai Prakash Chaturvedula, John F. Clos, Joshua Rhea, Dennis Milanowski, Ulla Mocek, Grant E. DuBois, Indra Prakash: Minor diterpenoidglycosides from the leaves of Stevia rebaudiana ; Phytochemistry Letters, Vol. 4 (3), September 2011, pp. 209-212. doi : 10.1016 / j.phytol.2011.01.002
- ↑ Kathrin Zinkant: Stevia: pathetic remains of a supposed miracle plant. Zeit Online, May 29, 2014.
- ↑ O. Rebaudi: Nota sobre el Caá-hee . In: Rev Quimi Farma Buenos Aires (1900), Volume 1, pp. 2-3.