Pricaspian Institute of Biologic Resources of Daghestan Scientific Center RAS
Author list of organization
List of articles written by the authors of the organization
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NI, CR, PB IN HYDROMORPHIC SOILS OF THE TEREK-SULAKSKOY SUBPROVINCE OF DAGESTAN
Description
In the article, we investigated hydromorphic soils of the Tersko-Sulak subprovince of Dagestan. We determined the content of humus, nickel, chromium and lead with genetic horizons of the investigated soils. The small excess of the maximum allowable concentration of nickel and chromium has been found, doze of lead was within norm
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Description
We investigated the basic soil types (brown, brown wood) of foothill zone of Dagestan. We revealed that the distribution of nickel, chromium and lead in the soils depends on several factors: soil-forming rock, physical clay, humus and pH. We defined the background content of heavy metals in the studied soils of the region
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TRACE ELEMENTS (Co, Mn, B, Cu) IN SOILS AND PLANTS NATURAL TIMES ARE FOOTHILLS OF DAGESTAN
Description
In the article we have determined the content of Co, Mn, B, Cu in typical soils and basic plant species characteristic of the main soil-vegetation belts the provinces foothills of Dagestan. It was found that the content of Co, Mn, B, Cu in soils and plants, and soil fertility, respectively, increased in the system of natural landscape and vegetation belts of investigated province of Dagestan: steppe belt brown soil → dry steppe dark chestnut soils → forest belt of brown forest soils
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TRACE ELEMENTS AND HEAVY METALS IN WATER AND BOTTOM SEDIMENTS DRAINAGE NETWORK DAGHESTAN
06.00.00 Agricultural sciences
Description
In the main collectors in the North-West Caspian we have found the concentration of priority chemical elements: in water - Zn, Cu, Mn, Co, B, Mo, Cr, Ni, Pb; in sediments - Zn, Cu, Mn, Cr, Ni, Pb. It was found that a common and characteristic feature of drainage water is a low concentration of these elements investigated (except Mn, B, Pb). In the bottom sediments collectors content of gross forms of Zn, Cu, Mn, Ni, Pb and mobile forms of Zn, Cu was below the MRL and the content of the gross forms of Cr and Mn mobile forms was a little higher
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PROCESSING METHODS OF THE INTENSIFICATION OF EXTRACTION OF NUTRIENTS FROM FRUITS OF WILD PLANTS
06.00.00 Agricultural sciences
Description
The nutrient structure of fruits of the Mountain ash of ordinary Sorbus aucuparia L., sloe of Prunus spinosa and their extracts is investigated. Inside them, the standard methods in biochemistry have determined the content of extractive substances, sugars, titrable acids, vitamins C and P, phenolic and pectinaceous substances. Results of analyses demonstrate that the fruits of wild plants ripening in the conditions of Dagestan – mountain ashes and sloe - can be effectively used as raw materials for receiving extracts which are rich in vitamins, carbohydrates and phenolic connections. The possibility of production of highquality nutrient-rich extracts from these fruits with application of various technological modes and ways of extraction is revealed: duration of insisting of raw materials; various concentration of ethanol in an extractant and ratios raw materials/ extractant. Results of researches demonstrate that at a ratio of raw materials/extractant 1:3 and the 70% content of ethanol in the extractant have come the greatest extraction from vitamin fruits P (routine) and phenols which made respectively 56,0-65,7% and 51,4-68,3%. Increase in extraction of titrable acids and vitamin C is noted at 50% concentration of ethanol in the extractant. The maximum release of sugars has come from all fruit substrata at 30% ethanol in the extractant. Results of biochemical analyses of extracts have shown that carrying out extraction in the way of double insisting on condition of selection of optimum: concentration of ethanol in the extractant, ratios of the raw materials/ extractant and the best time of insisting, allow to provide on average a 55-60% exit of nutrients from the studied fruit raw materials
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