Extended Harvest Date Alter Flavonoid Composition and Chromatic Characteristics of Plavac Mali (Vitis vinifera L.) Grape Berries
| Autor: | Goran Zdunić, Ana Mucalo, Edi Maletić |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
harvest date Health (social science) Flavonoid Plant Science Biology lcsh:Chemical technology 01 natural sciences Health Professions (miscellaneous) Microbiology Article tannin chemistry.chemical_compound Flavonols Soluble solids Tannin lcsh:TP1-1185 Vitis vinifera cv. Plavac Mali flavonoids anthocyanins flavonols CIELab color space skin parameters green berries Vitis vinifera chemistry.chemical_classification 010401 analytical chemistry 0104 chemical sciences Horticulture chemistry Skin color Anthocyanin Composition (visual arts) 010606 plant biology & botany Food Science |
| Zdroj: | Foods Volume 9 Issue 9 Foods, Vol 9, Iss 1155, p 1155 (2020) |
| DOI: | 10.3390/foods9091155 |
| Popis: | This study delivers a comprehensive flavonoid fingerprint profile, physiochemical and external color characterization of Plavac Mali grapes through four harvest dates at two distinct vineyards (Split and Zadar) in the Eastern Adriatic region. The experimental harvest lasted 56 days, at total soluble solids content from 18.4 to 22.4° Brix in Split and 16.8 to 20.4° Brix in Zadar. Patterns of 27 skin and seed flavonoid compounds at each location indicate unique flavonoid composition of berries at each harvest date. Extended harvest increased six compounds in skin with maximum values of main anthocyanin malvidin-3-O-glucoside in H3 (4406.6 and 6389.5 mg kg&minus 1, Split and Zadar, respectively) followed by a decrease in October. Peak values of seed and skin catechins and galloylated flavan-3-ol subunits are seen in H1 and H2 at Split, while constantly high values are reported in the case of Zadar, with an incoherent pattern of those in skin extracts. Minimal values of epigallocatechin were detected with an extended harvest date at both locations. Berries of extended harvest dates underwent colorimetric improvements, trough decrease in L*, a*, b* and C characteristics and increase in skin color index for red grapes CIRG. The extended harvest date promotes flavonoid composition, and improves the quality of Plavac Mali grape berries. |
| Databáze: | OpenAIRE |
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