Some biochemical parameters of the herb of the dragonhead (Dracocephalum moldavica L.) grown in the Moscow and Saratov regions
1Molchanova A.V., 1Bespalko A.V., 1Ushakova I.T., 2Suminova N.B.
1FGBNU FNCO, Moscow region, Russia
2Saratov state agrarian university. N.I. Vavilov, Saratov, Russia
e-mail: vovka_ks@rambler.ru
The content of ascorbic acid, dry matter, photosynthetic pigments, the total content of water-soluble antioxidants in the herb of the dragonhead grown in different regions of Russia was studied. It was shown that there were no significant differences in the total content of antioxidants and dry matter, and the difference in the content of ascorbic acid and photosynthetic pigments was 1.5-2 times.
The value of plant products is largely determined by its biochemical content. In connection with the above, the purpose of this study was to determine the total content of water-soluble antioxidants (AO) and ascorbic acid, as one of the components of the sum of AO, photosynthetic pigments in the herb of the dragonhead (Dracocephalum moldavica L.), grown in Saratov and Moscow regions.
The dragonhead cv. Albion provided by the laboratory of breeding and seed production of green, spicy and flavoring and flower crops. The plants were grown in the Central non-Chernozem zone (Moscow region) and the Volga region (Saratov). During the biochemical studies, an average sample of the herb from 20 plants was taken in four times the following parameters: the total content of water-soluble antioxidants (ascorbic acid was the standard), ascorbic acid, photosynthetic pigments, dry matter.
When comparing the results on the total content of water – soluble antioxidants in the leaves of the dragonhead grown in the Saratov and Moscow regions, it was found that there was no significant difference - 44.23±2.61 mg/g and 44.90±2.7 mg/g (in ascorbic acid equivalent). While the content of ascorbic acid in the herb there were valid differences: plants of the Saratov region contained more ascorbic acid than plants grown in the Moscow region (18.48±0.51 mg% and 11.44±0.51 mg%, respectively). The percentage of dry matter in the plants of the dragonhead from both regions of Russia was 22-24%. A slightly different pattern was noted in the content of photosynthetic pigments in the leaves of the snakehead. The content of chlorophyll a and b was significantly higher in plants from the Saratov region than in plants of the Moscow region, and the content of carotenoids in leaves was twice higher (0.43±0.03 mg/g and 0.23±0.01 mg/g, respectively), due to different climatic factors.
Further studies of the plant material grown in different ecological and geographical areas of the Russian Federation will reveal the regularities of the accumulation of nutrients in the plants of the dragonhead.