The polyphenolic content and antioxidant capacity in the seeds of 11 red grape varieties (five international and six native) widely cultivated in Turkey were investigated. Total phenolic, total flavanol and total polymeric procyanidin content ranged from 79.2 to 154.6, 89.2 to 179.4, and 27.0 to 43.3mg/g seed, respectively. While (+)-catechin (4.71-23.8mg/g seed) was found as main flavanol, gal...

Enzyme degradation of plant cell wall polysaccharides can potentially enhance the release of bioactive phenolics. The aim of this study was to evaluate various combinations of solvent and enzyme, enzyme type (cellulase, pectinase, ß-glucosidase), and hydrolysis time (1, 4, 8, 24 h) on the release of muscadine grape skin and seed phenolics, and their antioxidant activities. Results showed that p...

Grape pomace is the main solid residue of wine industry, mainly composed seeds, skins and stalks, all containing high amounts valuable phytochemicals. Considering its potential, in this review, an outlook on different resources products, which can be obtained by recovery grape provided. Special attention has been devoted to analysis chemical, physical biotechnological processes applied also val...

As grape seed is the waste material in processing, these generally utilized as cattle feed many countries, while has been shown to contain high amount of antioxidant compounds and a good source polyphenols wide variety proanthocyanidins. For current study, seeds were collected, dried powdered separately incorporated different noodles such tomato, mint beetroot at 10%, 20% 30% levels. Among thre...

Flavonoids are a group of natural compounds in plants with versatile health benefits for humans. Grapes are a dietary source of flavonoids and the flavonoid components in grape berries can depend on the grape species and cultivar. In this experiment, proanthocyanidins, flavonols, and anthocyanins were analyzed in Vitis coignetiae and V. ficifolia var. ganebu, wild grapes native to Japan, and co...

Wine has been with us since the dawn of civilization and has fol­ lowed humans and agri culture along diverse migration paths (Fig 1). Serendipity presumably played a part in its genesis more than 7,000 years ago: dam­ aged grapes spontaneously fermented in harvesting vessels; curious farmers tasted the resultant alcoholic beverage; the curious farmers liked what they tasted and enjoyed its eff...