publication . Other literature type . Article . 2006

Metabolite Profiling of Grape: Flavonols and Anthocyanins

Marco Stefanini; Raffaele Guzzon; Fulvio Mattivi; Urska Vrhovsek; Riccardo Velasco;
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  • Published: 01 Oct 2006
  • Publisher: American Chemical Society (ACS)
Abstract
Flavonols are products of the flavonoid biosynthetic pathway, which also give rise to anthocyanins and condensed tannins in grapes. We investigated their presence in the berry skins of 91 grape varieties (Vitis vinifera L.), in order to produce a classification based on the flavonol profile. The presence of laricitrin 3-O-galactoside and syringetin 3-O-galactoside in red grapes is reported here for the first time. In red grapes, the main flavonol was quercetin (mean = 43.99%), followed by myricetin (36.81%), kaempferol (6.43%), laricitrin (5.65%), isorhamnetin (3.89%), and syringetin (3.22%). In white grapes, the main flavonol was quercetin (mean = 81.35%), foll...
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free text keywords: Laricitrin, chemistry.chemical_compound, chemistry, Kaempferol, Flavonoid biosynthesis, Food science, Anthocyanin, Flavonols, chemistry.chemical_classification, Isorhamnetin, Syringetin, Myricetin, Botany
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