An accurate and precise method for direct determination of chromium in wine using graphite furnace atomic absorption spectrometry (GFAAS) is described. The method was also applied to grape samples treated by previous acid mineralization. A total of 79 wine samples from different regions in France and 12 grape samples of different varieties were analyzed. Chromium levels ranged from 7.0 to 90.0 ...

The effect of pH and temperature on the stability and visual colour of aqueous anthocyanin (ACY) extracts from purpleand red-flesh potatoes was evaluated and compared to commercial ACY extracts from grape and purple carrot. Extracts from purple carrot and redflesh potatoes showed higher stability than grape and purple-flesh potato extracts. Stability to pH (63) and thermal degradation of extrac...

The aim of this review is to discuss the accumulating evidence that suggests that grape extracts and purified grape polyphenols possess a diverse array of biological actions and may be beneficial in the prevention of some inflammatory-mediated diseases including cardiovascular disease. The active components from grape extracts, which include the grape seed, grape skin, and grape juice, that hav...

Trans-resveratrol (3,5,4'-trihydroxy-trans-stilbene) is naturally present in the skin of grapes and therefore is expected to occur in grape products. Recently, there has been a renewal of interest in wine as medical treatment for various disorders. In this study, berry skins of five red grape varieties were analysed at weekly intervals for trans-resveratrol production, during 2012 and 2013 harv...

This paper presents the levels of copper and zinc determined in a total of 66 samples of the most widely consumed varieties of white and red grapes in Spain, as well as those of 60 samples of grape juice (39 from white varieties and 21 from red ones) chosen from the main commercial brands in the country. Atomic absorption spectroscopy was used as analytical technique, with electrothermal atomiz...

Abstract China is one of the main producers in worldwide raisin market. Most China’s raisins are produced Xinjiang where Thompson seedless grape ( Vitis vinifera L.cv.Thompson seedless) variety green raisin. However, browning during drying has been well-acknowledged as primary factor affecting development industry. Data independent acquisition (DIA)-based protein profiling was performed on fres...

Grape is one of the most popular and widely cultivated fruits in the world. Although grape skin and seeds are waste product of the winery and grape juice industry, these wastes contain large amounts of phytochemicals such as flavonoids, phenolic acids, and anthocyanidins, which play an important role as chemopreventive and anticancer agents. We evaluated efficacies of grape skin and seeds on he...