Scientific Journal of KubSAU

Polythematic online scientific journal
of Kuban State Agrarian University
ISSN 1990-4665
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139 kb

INVESTIGATION OF ASCORBIC ACID ADSORPTION ON KSMG SILICA GEL

abstract 1191605091 issue 119 pp. 1356 – 1365 31.05.2016 ru 948
The article studies adsorption of ascorbic acid on KSMG silicagel. The experimental results, the basic thermodynamic characteristics of ascorbic acid adsorption on oxide silicon have been used for treatment of adsorption mechanism of ascorbic acid on silica KSMG. Results of the study ascorbic acid adsorption on silica gel KSMG may be used for further identification of it in the various objects
245 kb

KEPLER'S NUMBERS IN THE MODEL OF THE RUTHERFORD-BOHR

abstract 1341710081 issue 134 pp. 995 – 1005 29.12.2017 ru 1057
The change in the Kepler’s atomic number in the Periodic Table of Mendeleev is studied. It is shown that its values decrease regularly with increasing nuclear charge. An alternative formula for computing the values of the Kepler’s atomic number is proposed. It is shown that the ratio of the atomic number of Kepler’s to the mass of the atom is a constant for each period. The values of these constants are calculated
190 kb

MATHEMATICAL MODEL OF THE CORRECTION OF PH SOFTENED WATER IN A LONG CHANNEL OF ELECTRODIALYSIS WITH BIPOLAR MEMBRANE

abstract 1261702002 issue 126 pp. 33 – 49 28.02.2017 ru 836
Theoretically and experimentally, we investigated the process of adjusting the pH of natural water of hydrocarbonate class electrodialyzer with bipolar membranes with channel length of 40 cm. We experimentally measured concentration of components, pH of the solutions in alkaline and acid channels of electrodeposition depending on the current density. The article describes a mathematical model for long channels; to scale the mass transfer characteristics of the process there was applied and verified a method of compartmentalization, which gave the possibility to calculate the dependence of the component along the channel length at different velocities of flow of the solution. Numerical calculations were compared with experimental data on electrodialyser of 10 cm and 40 cm length
128 kb

MODELING OF CULTIVATION ON PRODUCTIVITY LACTIC ACID PRODUCER LACTOCOCCUS LACTIS CH5

abstract 0831209044 issue 83 pp. 634 – 642 30.11.2012 ru 2187
The equations for evaluation of the stationary state of lactic acid microbiological synthesis have been received. The kinetic dependencies for specific biomass growth rate, consumption of the substrate are given. The particular qualities of growth of homofermentative lactic acid producer Lactococcus lactis CH5 depending on the composition nutrient medium: glucose and yeast autolysate concentration are examined. The influence of the method of cultivation on the productivity and the speed of the lactis acid synthesis are analyzed
122 kb

NI, CR, PB IN HYDROMORPHIC SOILS OF THE TEREK-SULAKSKOY SUBPROVINCE OF DAGESTAN

abstract 0761202017 issue 76 pp. 196 – 205 29.02.2012 ru 2006
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
635 kb

OBTAINING OF COMPLEX NANOEMULSIONS ON THE BASE OF LIGHT WATER AND CO2 – EXTRACTS FROM VEGETATIVE RAW MATERIAL WITH ACOUSTIC CHEMISTRY METHOD

abstract 0941310050 issue 94 pp. 748 – 757 27.12.2013 ru 1528
The method of nanoemulsions obtaining with acoustic chemistry method has been considered in the article, the nanoemulsion formula has been found. The researches for emulsion stability and particle sizes determination have been fulfilled. The antioxidant effect of the obtained emulsion and a possibility to use it in meat-vegetable products have been researched
258 kb

PERSPECTIVE MODIFIERS FOR ANIONEXCHANGE MEMBRANES BASED ON POLYMERS WITH QUATERNARY NITROGEN ATOMS, WHICH INCLUDED IN FIVE- AND SIX-MEMBERED HETEROCYCLIC RINGS

abstract 1231609085 issue 123 pp. 1256 – 1267 30.11.2016 ru 758
The present work describes the chemical synthesis of poly-N,N-diallyl pyrrolidinium bromide and polyN,N-diallyl morpholinium bromide - high-molecular compounds containing quaternary nitrogen atoms, which included in two five- and/or six-membered heterocyclic rings. These polymers are perspective modifiers for industrially produced anion-exchange membranes, the use of which should significantly improve the resistance to degradation of the membranes at over-limiting current regimes. The structure of obtained polymers was characterized by FTIR, 1H and 13C NMR spectroscopy. The optimal reaction conditions, which increase the yield of desired products, were defined. It is shown that is preferable to use 1-butanol as a solvent and benzoyl peroxide as an initiator
139 kb

PLANT GROWTH REGULATORS IN THE SERIES OF NICOTINIC ACID DERIVATIVES

abstract 1001406108 issue 100 pp. 1640 – 1650 30.06.2014 ru 1710
The article shows the information of the use of 2-R-sulfanyl nicotinates of potassium on rice crops. We have found that the compounds described increase yield and improve its quality
230 kb

PREPARATION OF GRAPHENE MATERIAL WITH BENZIMIDAZOLE FRAGMENTS

abstract 1341710056 issue 134 pp. 711 – 719 29.12.2017 ru 1195
The new benzimidazole-functionalized graphene material based on graphene oxide (GO) and 3,3',4,4'- tetraaminodiphenyl oxide (TADPO) was obtained under one-step hydrothermal synthesis conditions. According to IR spectroscopy and elemental analysis, as a result of the reaction, benzimidazole (BI) rings are formed, and the mass content of nitrogen is 12.3%. The new graphene material is characterized by excellent electrochemical efficiency in a threeelectrode supercapacitor. As a result of the redox activity of BI cycles the specific capacitance reaches 286 F/g at the scan rate of 2 mV/s, which is substantially higher than the reduced graphene oxide (RGO) sample obtained under similar conditions without using TADPO (159 F/g at 2 mV/s)
131 kb

QUANTITATIVE AND QUALITATIVE DETERMINATION OF ENZYMESANTIOXIDANTS CONTAINED IN HORSERADISH GROWN IN THE ASTRAKHAN REGION IN THE SUMMER AND AUTUMN

abstract 1181604089 issue 118 pp. 1377 – 1386 29.04.2016 ru 909
The article is devoted to the study of enzymesantioxidants contained in horseradish root. The article provides a detailed analysis of the sources of information, aimed at clarifying the content of enzymesantioxidants contained in horseradish root, grown in the Astrakhan region in the autumn and summer. During the analysis of the literature, it was found that the content of enzyme-antioxidants in the root of the horseradish is not constant and depends on climatic conditions, planting time and harvest time. The content of antioxidants in the root of horseradish grown in the Astrakhan region in the summer-autumn period was studied using by the method of A.N. Bach and A.I. Oparin. 2 g of horseradish roots contains the number of enzymes - antioxidants able to expand for 30 min (1,547 • 100) / (20 • 1) = 77.35 mg of hydrogen peroxide in 1 min - 2.56 mg. 1mkmol As hydrogen peroxide is 0.034 mg, in 2 g horseradish contains 76 E enzyme - antioxidants (or E 38 1 g horseradish). The results of this work will form the basis for the creation and study of new enterosorbent with antioxidant functions. Enterosorbent prepared by adsorption on starch antioxidants such as peroxidase, catalase, and ascorbic acid, from aqueous extracts of plant material
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