Keywords
Abstract
The article presents the results of studies of the physical-chemical and organo- leptic characteristics of native red grape varieties of Crimea and Don in the
system “grapes-wine material” from the Ampelographic collection of Magarach
Institute (village Vilino, Bakhchisaray district). It was established that the
activity of oxidizing enzymes (peroxidase and monophenol-monooxygenase)
was low or absent in almost all varieties. The technological stock of phenolic
substances in the studied grape varieties was in a rather wide range - from 2139
to 3865 mg/dm3
, including the technological reserve of coloring substances
- from 149 (‘Kokur Krasnyi’) to 1232 mg/dm3
(‘Bezymyannyi’). Good foaming
capacity (Vmax more than 800 cm3
) was achieved in wine materials made of
‘Kefesiya’ grape variety. The ratio of mass concentrations of tartaric and malic
acids was optimal (more than 1) in all varieties under study. High tasting
evaluation gained the varieties ‘Tsimladar’, ‘Bezymyannyi’ and ‘Solnechnaya
Dolina 58’. Basing on the combination of studies of essential and additional
physical-chemical and organoleptic parameters in the system “grapes-wine
material” and on the technological assessment of native red grapes of Crimea
and Don that grow in the Ampelographic collection of the Magarach Institute,
we can draw the following conclusion: wine materials made of native red grape
varieties ‘Kefesiya’, ‘Solnechnaya Dolina 58’, ‘Tsimladar’, ‘Bezymyannyi’ are
of interest to the production of sparkling wines.