Published in Scientific Papers. Series B, Horticulture, Vol. LXVI, Issue 1
Written by Ramona CĂPRUCIU, Daniela Doloris CICHI, Liviu Cristian MĂRĂCINEANU, Dorin Constantin COSTEA
The resveratrol (3,5,4'-trihydroxystilbene) is a phytoalexin belonging to the class of polyphenolic compounds called stilbene, produced in response to stress factors by a wide variety of plants, including Vitis vinifera. This study presents the high performance liquid chromatography (HPLC) system detection of the forms of resveratrol (cis- and trans-) isomers in the skin of the Cabernet Sauvignon and Merlot black grapes from the Șimnicu de Sus wine grape-growing area during the 2019 and 2020 period. The resveratrol isomers were determined throughout the period of maturation of the studied varieties (15 July to 5 September) of the grape berries skin samples. The resveratrol content of grapes skin decreased constantly from the green phase until the full maturity for both varieties, reaching zero for cis-resveratrol (0.043mg/L for Cabernet Sauvignon variety in 2020) in the matured fruits.
[Read full article] {simplepopup link="Citation39"}[Citation]
{/simplepopup}
{simplepopup popup="false" name="Citation39"}CAPRUCIU R., CICHI D.D., MARACINEANU L.C., COSTEA D.C. 2022, THE RESVERATROL CONTENT IN BLACK GRAPES SKINS AT DIFFERENT DEVELOPMENT STAGES. Scientific Papers. Series B, Horticulture, Vol. LXVI, Issue 1, Print ISSN 2285-5653, 245-252. {/simplepopup}