title: Evaluation of technological indicators of red grape varieties grown in Altai
abstract: Introduction. The article presents the results of a comparative assessment of the technological indicators of nine red grape varieties grown in the Altai Territory. Materials and methods. The mass concentration of sugars and titratable acids determined instrumentally (refractometrically and potentiometrically, respectively), as well as the sugar-acid index (calculated indicator) were assessed as technologically significant indicators of grape quality. Several statistical methods (analysis of var
journal: Sovremennaya nauka i innovatsii