Antioxidant Study and Assignments of NMR Spectral Data for 3 ,4 ,7-Trihydroxyflavanone 3 ,7-Di-O- -D-glucopyranoside (Butrin) and Its Hydrolyzed Product
| Autor: | Pahup Singh, Amir Reza Jassbi, Pradeep K. Gupta, Vivek Krishna, Satoshi Tahara |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
Antioxidant
Chromatography Butin biology DPPH medicine.medical_treatment Plant Science General Chemistry biology.organism_classification General Biochemistry Genetics and Molecular Biology NMR spectra database Hydrolysis chemistry.chemical_compound chemistry Yield (chemistry) medicine Butea Two-dimensional nuclear magnetic resonance spectroscopy |
| Zdroj: | Chemistry of Natural Compounds. 40:250-253 |
| ISSN: | 0009-3130 |
| DOI: | 10.1023/b:conc.0000039134.46227.1f |
| Popis: | The NMR spectral data including high resolution 1H, 13C and 2D NMR for butrin, 3′,4′,7-trihydroxyflavanone 3′,7-di-O-β-D-glucopyranoside, isolated from flowers of Butea monosperma, are reported here for the first time. Butrin was hydrolyzed using b-glucosidase to butin in high yield. They were subjected to free radical scavenging test using 2,2-diphenyl-1-picrylhydrazyl (DPPH) spectrophotometric assay. At a dose of 4 × 10-8 mol of tested compounds, the percentage of reduced DPPH for butin was 14.5% while no reduction was observed for butrin (0%). |
| Databáze: | OpenAIRE |
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