At present time the need of biologically active substances and preservatives as natural extract usage is increasing. Local recourses’ applying, in particular, honeysuckle common growing in the Krasnoyarsk territory is a justified decision. The results of vitamin C keeping dynamics in the separate vegetative parts of wild-growing blue honeysuckle depending on storage conditions are presented. It was shown that ascorbic acid is in 1.4 times higher in freshly picked berries in comparison with leaves. However acid content in berries subjected to deep freezing is decreasing over time and six month later it is only 68% from the original. At the same time vitamin C keeping in the leaves dried to air-dry condition is rather higher and to the end of storage period (6 months) is decreased only to 5.2%. Herewith the total amount of ascorbic acid in the leaves is higher than that in the frozen berries of the investigated plant. Besides that the spectrophotometric research showed the presence in the blue honeysuckle leaves (Lonicera caerulea L.) such classes of biological active compounds as chlorophyll containing derivatives, bioflavonoid complex, carbohydrate components, anthocyans, tanning agents, organic matters and so on. This circumstance suggests great perspectives for the vegetable raw material practical applying.
The article presents the results of studying the chemical composition of the leaves of blue honeysuckle, naturally growing in the southern taiga of the Krasnoyarsk Territory. It was found that along with fiber and lignin, the studied biomass contains a significant amount (about 70 wt. %) of extractive substances. Using fractional extraction with solvents of increasing polarity, it was possible to extract from the studied raw materials 9.5 wt.% of substances soluble in non-polar solvents and about 60 wt.% of compounds soluble in isopropanol and water. A spectrophotometric study showed the presence in the leaves of blue honeysuckle (Lonicera caerulea L.) such classes of biologically active compounds that provide a wide range of pharmacological action of the plant, such as chlorophyll-containing derivatives, a complex of bioflavonoids, carbohydrate components, anthocyanins, tannins, organic acids and others. This circumstance opens up broad prospects for the practical usage of the biomass under study in the production of food additives, pharmaceutical and perfumery and cosmetic preparations.
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