DOWNEY, M.; HANLIN, R. Comparison of Ethanol and Acetone Mixtures for Extraction of Condensed Tannin from Grape Skin. South African Journal of Enology and Viticulture, [S. l.], v. 31, n. 2, p. 154–159, 2016. DOI: 10.21548/31-2-1412. Disponível em: https://www.journals.ac.za/sajev/article/view/1412. Acesso em: 23 feb. 2026.