García-Estévez Ignacio, Andrés-García Paula, Alcalde-Eon Cristina, Giacosa Simone, Rolle Luca, Rivas-Gonzalo Julián C, Quijada-Morín Natalia, Escribano-Bailón M Teresa
Grupo de Investigación en Polifenoles (GIP), Unidad de Nutrición y Bromatologı́a, Facultad de Farmacia, Universidad de Salamanca , Salamanca, Spain.
Dipartimento di Scienze Agrarie, Forestali e Alimentari, Università degli Studi di Torino , Grugliasco (TO), Italy.
J Agric Food Chem. 2015 Sep 9;63(35):7663-9. doi: 10.1021/acs.jafc.5b00275. Epub 2015 May 7.
The relationship between the agronomic parameters of grapevine and the phenolic composition of skin of Vitis vinifera L. cv. Tempranillo grapes was assessed. The physical and mechanical properties of berries and their skins were also determined and correlated to the chemical composition. Results showed a significant negative correlation between grapevine vigor-related parameters (such as leaf area and bunch weight) and anthocyanin composition, whereas the percentage (w/w) of seeds was negatively correlated with the amount of flavanols of grape skins. Texture properties of grape skins also showed an important relationship with chemical composition. Berry hardness showed a negative correlation with the coumaroyl-anthocyanin derivatives, but it was positively correlated to skin flavanic composition. Moreover, significant regressions with high coefficients of determination were found between phenolic composition and grapevine vigor-related and texture variables, thus pointing out that these parameters might be useful for estimating the phenolic composition of grape skins.
评估了葡萄的农艺参数与酿酒葡萄品种丹魄（Vitis vinifera L. cv. Tempranillo）果皮酚类成分之间的关系。还测定了浆果及其果皮的物理和机械性能，并将其与化学成分进行关联。结果表明，与葡萄树活力相关的参数（如叶面积和果穗重量）与花青素成分之间存在显著负相关，而种子的百分比（w/w）与葡萄皮中黄烷醇的含量呈负相关。葡萄皮的质地特性也与化学成分显示出重要关系。浆果硬度与香豆酰花青素衍生物呈负相关，但与皮中黄烷类成分呈正相关。此外，在酚类成分与葡萄树活力相关变量和质地变量之间发现了具有高决定系数的显著回归关系，因此指出这些参数可能有助于估计葡萄皮的酚类成分。
