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1. (Article ID: 12442)
Marais C, van Rensburg WJ, Ferreira D, Steenkamp JA
(S)- and (R)-Eriodictyol-6-C-β-D-glucopyranoside, novel keys to the fermentation of rooibos (Aspalathus linearis)
Phytochemistry 55(1) (2000)
43-49
The processed leaves and stems of Aspalathus linearis contain a new diastereomeric pair of the flavanones, (S)- and (R)-eriodictyol-6-C-β-D-glucopyranoside, which is also formed via the oxidative cyclization of the dihydrochalcone, aspalathin, under conditions which mimic the fermentation process.
Aspalathus linearis; Leguminosae; rooibos tea; phenolic metabolites; flavanone glucoside; fermentation; dihydrochalcone
NCBI PubMed ID: 11021643Publication DOI: 10.1016/s0031-9422(00)00182-5Journal NLM ID: 0151434Publisher: Elsevier
Correspondence: Marais C
frm.uovs.ac.za>; Steenkamp JA cem.nw.uovs.ac.za>
Institutions: Department of Chemistry, University of the Orange Free State, Bloemfontein, South Africa
Methods: 13C NMR, 1H NMR, TLC, ESI-MS, HPLC, extraction, derivatization, evaporation, HR-EI-MS
The publication contains the following compound(s):
- Compound ID: 32282
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b-D-1dGlcp-(1C-3)-Subst
Subst = 3'-hydroxyphloretin = SMILES O=C(C1={6}C(C={4}C({3}C={2}C1O)O)O)CCC2=C{53}C(O)={54}C(O)C=C2 |
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Structure type: monomer
Trivial name: aspalathin
Compound class: glycoside, chalcone glycoside
- Compound ID: 32283
Structure type: monomer
Trivial name: nothofagin
Compound class: glycoside, chalcone glycoside
- Compound ID: 32284
Structure type: monomer
Compound class: glycoside, chalcone glycoside
- Compound ID: 32285
Structure type: monomer
Compound class: glycoside, chalcone glycoside
- Compound ID: 32286
Structure type: monomer
Compound class: glycoside, chalcone glycoside
- Compound ID: 32287
Structure type: monomer
Compound class: glycoside, chalcone glycoside
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