Читать книгу Handbook of Enology, Volume 2 - Pascal Ribéreau-Gayon - Страница 16

Most organic acids in must and wine have one or more chiral centers. The absolute configuration of the asymmetrical carbons is deduced from that of the sugars from which they are directly derived. This is especially true of tartaric and malic acids (Table 1.1). The absolute configuration of the asymmetrical carbons is established according to the Cahn–Ingold–Prelog priority rules (1953). Further reference to these rules will be made in the chapter on sugars (Section 3.3.2), which are the reference molecules for stereoisomerism.