title: Catalytic hydrogenation of the sweet principles of Stevia rebaudiana, Rebaudioside B, Rebaudioside C, and Rebaudioside D and sensory evaluation of their reduced derivatives.
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.
authors.affiliation: Organic Chemistry Department, Global Research and Development, The Coca-Cola Company, One Coca-Cola Plaza, Atlanta, GA 30313, USA. vchaturvedula@coca-cola.com.
authors.forename: Indra
authors.initials: I
authors.lastname: Prakash
authors.forename: Mary
authors.initials: M
authors.lastname: Campbell
authors.forename: Venkata Sai Prakash
authors.initials: VS
authors.lastname: Chaturvedula
mesh_terms: D002384:Catalysis; D045786:Diterpenes, Kaurane / Q000737:chemistry* / Q000302:isolation & purification; D006027:Glycosides / Q000737:chemistry; D006801:Humans; D006865:Hydrogenation; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D009844:Oligosaccharides / Q000737:chemistry; D036625:Stevia / Q000737:chemistry*; D013549:Sweetening Agents / Q000737:chemistry; D055697:Taste Perception
chemical_list: D045786:Diterpenes, Kaurane; D006027:Glycosides; D009844:Oligosaccharides; D013549:Sweetening Agents; C586824:rebaudioside D; C524468:rebaudioside C