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The phenolic compounds in different parts of grape and its products. Adapted from [39].
| Resource | Phenolic Compounds |
|---|---|
| Seed | gallic acid, (+)-catechin, epicatechin, dimeric procyanidin, proanthocyanidins |
| Skin | Proanthocyanidins, ellagic acid, myricetin, quercetin, kaempferol, trans-resveratrol |
| Leaf | myricetin, ellagic acid, kaempferol, quercetin, gallic acid |
| Stem | rutin, quercetin 3-O-glucuronide, trans-resveratrol, astilbin |
| Raisin | hydroxycinnamic acid, hydroxymethylfurfural |
