Negro Carmine, Aprile Alessio, Luvisi Andrea, De Bellis Luigi, Miceli Antonio
Department of Biological and Environmental Sciences and Technologies (DiSTeBA), Salento University, 73100 Lecce, Italy.
Antioxidants (Basel). 2021 Sep 1;10(9):1406. doi: 10.3390/antiox10091406.
The wine industry annually produces millions of tons of by-products rich in polyphenolic compounds that can be reused as secondary raw material in the food, cosmetic and pharmaceutical industries. The purpose of this work was to describe the presence of nutraceutical compounds and to evaluate the antioxidant activity of pomaces from three Apulian (South Italy, Italy) grape varieties (Negroamaro, Malvasia di Lecce and Primitivo) and to compare them with one of the most cultivated wines in Europe (Cabernet Sauvignon). The main classes of polyphenolic substances were characterized via high performance liquid chromatography/diode array detector/mass spectrometer time of flight (HPLC/DAD/TOF) and the antioxidant activity was evaluated with three different methods. The four investigated grape marcs have shown different polyphenols and antioxidant activities. Primitivo marc showed the higher antioxidant activity due to the excellent level of polyphenols, followed by the Negroamaro cultivar. In addition, marcs from traditional Apulian vines showed higher antioxidant activities than Cabernet Sauvignon because of an elevated level of active polyphenolic substances such as catechin, epicatechin, quercetin and its derivatives.
葡萄酒行业每年都会产生数百万吨富含多酚类化合物的副产品，这些副产品可作为食品、化妆品和制药行业的二次原料加以再利用。这项工作的目的是描述营养化合物的存在情况，并评估来自意大利南部普利亚地区的三个葡萄品种（黑曼罗、莱切马尔瓦西亚和普里米蒂沃）的葡萄渣的抗氧化活性，并将它们与欧洲种植最广泛的葡萄酒品种之一赤霞珠进行比较。通过高效液相色谱/二极管阵列检测器/飞行时间质谱仪（HPLC/DAD/TOF）对主要的多酚类物质类别进行了表征，并采用三种不同方法评估了抗氧化活性。所研究的四种葡萄渣表现出不同的多酚含量和抗氧化活性。由于多酚含量极高，普里米蒂沃葡萄渣表现出较高的抗氧化活性，其次是黑曼罗品种。此外，由于诸如儿茶素、表儿茶素、槲皮素及其衍生物等活性多酚类物质含量较高，普利亚传统葡萄品种的葡萄渣显示出比赤霞珠更高的抗氧化活性。
