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Int. J. Mol. Sci. 2012, 13(11), 15126-15136; doi:10.3390/ijms131115126

Catalytic Hydrogenation of the Sweet Principles of Stevia rebaudiana, Rebaudioside B, Rebaudioside C, and Rebaudioside D and Sensory Evaluation of Their Reduced Derivatives

1
Organic Chemistry Department, Global Research and Development, The Coca-Cola Company, One Coca-Cola Plaza, Atlanta, GA 30313, USA
2
Product Development, Coca-Cola North America Division, The Coca-Cola Company, One Coca-Cola Plaza, Atlanta, GA 30313, USA
*
Author to whom correspondence should be addressed.
Received: 8 October 2012 / Revised: 6 November 2012 / Accepted: 8 November 2012 / Published: 16 November 2012
(This article belongs to the Section Biochemistry, Molecular Biology and Biophysics)
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Abstract

Catalytic hydrogenation of rebaudioside B, rebaudioside C, and rebaudioside D; the three ent-kaurane diterpene glycosides isolated from Stevia rebaudiana was carried out using Pd(OH)2. Reduction of steviol glycosides was performed using straightforward synthetic chemistry with the catalyst Pd(OH)2 and structures of the corresponding dihydro derivatives were characterized on the basis of 1D and 2D nuclear magnetic resonance (NMR) spectral data indicating that all are novel compounds being reported for the first time. Also, the taste properties of all reduced compounds were evaluated against their corresponding original steviol glycosides and sucrose.
Keywords: ent-kaurane diterpene glycosides; catalytic hydrogenation; Pd(OH)2; structure characterization; spectral data; sensory evaluation ent-kaurane diterpene glycosides; catalytic hydrogenation; Pd(OH)2; structure characterization; spectral data; sensory evaluation
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Prakash, I.; Campbell, M.; Chaturvedula, V.S.P. Catalytic Hydrogenation of the Sweet Principles of Stevia rebaudiana, Rebaudioside B, Rebaudioside C, and Rebaudioside D and Sensory Evaluation of Their Reduced Derivatives. Int. J. Mol. Sci. 2012, 13, 15126-15136.

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