Claim · model-written summary
In cluster samples one characteristic polyphenol signal from benzoic acid and flavon-3-ols appeared between 270 and 280 nm.
- Taxon
- grapee0
- Organ / stage
- cluster samplese2
- Outcome
- characteristic signal for polyphenols from benzoic acid and flavon-3-olse2
- Value
- 270-280 nme2
Not reportedMaterialGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionQualifier
Verbatim
e0“The spectra showed characteristic peaks of polyphenols (270-280 nm typical for phenolic acids and flavonoids and 535 nm specific to anthocyanins) found in higher quantities in wine grape varieties comparatively to table grape varieties, e.g. Burgund mare (Recas) and Cabernet Sauvignon (Recas) against Muscat Hamburg (Recas)”
e2“For cluster samples it can be seen one characteristic signal for polyphenols from benzoic acid and flavon-3-ols in the wavelength domain between 270-280 nm”
Title
THE UV-VIS SPECTRAL FINGERPRINTS OF POLYPHENOLS FROM SEVERAL RED GRAPE VARIETIES
Nastasia Pop; Anca Babeș; Claudiu Ioan Bunea Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca Horticulture 2007. doi:10.15835/buasvmcn-hort:2043
Other claims from this paper (6)
- Association Wine grape varieties showed higher characteristic polyphenol peaks than the table grape Muscat Hamburg.
- Observation In must samples, a larger number of maxima (270, 340, 380 nm) was observed, without significant differences between grape varieties.
- Association Merlot from Recas had the highest polyphenol concentrations in cluster samples, above Merlot from Dealu Mare.
- Association Cabernet Sauvignon and Burgund Mare from Recas had the highest polyphenol concentrations in seed samples, compared with the other samples.
- Association Polyphenol concentrations in seeds were almost ten times higher than in the other parts.
- Observation Polyphenol values for the table grape Muscat Hamburg were insignificant in all samples.