Accumulation of anthocyanins in the skin and pulp of five different teinturier grapes
Anthocyanins are water soluble flavonoid pigments that normally accumulate in the grape skin, and contribute the red or purple colour to the red grapes. However, in the teinturier grapes, besides the skin, anthocyanins also accumulate in the pulp, which are widely used in winemaking to enhance the colour intensity of red wines. In the present study, anthocyanin profiles in the berry skin and pulp of five different well mature grapes ('Yan-73', 'Yan-74', 'Kolor', a special rootstock cultivar 'Salt Creek' and an unknown Chinese grape cultivar) were analysed by high performance liquid chromatography-electronic spray ionisation-tandem mass (HPLC-ESI-MS/MS). The results showed that in total, 39 different kinds of anthocyanins were identified from such grapes, and their profiles in the skin and pulp were quite different, showing remarkable cultivar and tissue specificity. This research will provide helpful references for wine processing and cultivar breeding of coloured grapes in the future.
He, F., Liang, N.-N., Duan, C.-Q., Wang, J. and Reeves, M.J. (2017). Accumulation of anthocyanins in the skin and pulp of five different teinturier grapes. Acta Hortic. 1157, 73-82
teinturier grape, anthocyanins, skin, pulp, tissue specificity