Ana Belén B.-Ortín, A. Martínez-Hernández, Y. Ruiz-García, R. Gil-Muñoz, and E.Gómez-Plaza. (2016). Anthocyanins influence tannin–cell wall interactions. The rate of tannin extraction was studied in a vinification of red grapes and the results compared with another vinification made with white grapes fermented as for typical red wine, in the presence of skins and seeds. Even though the grapes presented a quite similar skin and seed tannin content, the differences in tannin concentration between both vinifications was very large, despite the fact that the only apparent difference between the phenolic composition of both wines was the anthocyanin content. This suggests that anthocyanins play an important role in tannin extractability, perhaps because they affect the