Scientific Journal of KubSAU

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

VOLTAMMETRY AND ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY OF MEMBRANE SYSTEMS UNDER STABILIZED DIFFUSION LAYER THICKNESS

abstract 1131509094 issue 113 pp. 1326 – 1342 30.11.2015 ru 1172
The current-voltage characteristics and the number of effective ion transfer, as well as the frequency spectrum of the electrochemical impedance of multilayer ion-exchange membranes in a stable and controllable thickness of the diffusion layer were measured, using the of rotating membrane disk complex. The article presents a comparative analysis of the frequency spectra of the electrochemical impedance of the source and a surface-modified monopolar anion exchange membranes in 0.01 M sodium chloride was made. The process of water molecules dissociation at current densities above the limiting one in 0.01 M sodium chloride solution was studied in detail
190 kb

TO THE STUDY OF ADSORPTION OF ENZYME-ANTIOXIDANTS ON STARCHES DERIVED FROM HORSERADISH TO CREATE ENTEROSORBENT WITH ANTIOXIDANT PROPERTIES

abstract 1181604095 issue 118 pp. 1459 – 1468 29.04.2016 ru 739
The article is devoted to studying adsorption of enzymes, antioxidants contained in horseradish root on starch to create enterosorbent with anti-oxidant properties. For this goal, we have studied adsorption isotherm calculated constants, thermodynamic parameters (change of enthalpy, entropy, and isobaric-isothermal potential); sorption kinetics of enzyme-antioxidants on starch and calculate the main characteristics. The method of producing of enterosorbent - antioxidant on based starches has been developed based on the experimental data. The ready sorbent is a white powder having no taste and smell. Insoluble in biological fluids and water. It is the solid component. The enterosorbent can be used to protect the gastrointestinal tract of humans and animals against a wide variety of oxidants and peroxide. The results of this work will form the basis for the study of the antioxidant properties of the resulting enterosorbent
312 kb

THERMOREACTIVE OLIGOMERS FROM HEXAMETHYLENE-bis-MALEIMIDE and 5,5’- bis-BENZOTRIAZOLES, AND GLUED JOINTS ON BASE OF THEM

abstract 1141510035 issue 114 pp. 478 – 491 30.12.2015 ru 1244
A number of thermoreactive oligomers was obtained via the Michael interaction of molar excesses of hexamethylene-bis-maleimide with 5,5’-bisbenzotriazoles in melt. The structure of them was proved by the 13C spectroscopy method. The one-step synthesis in melt, without by-products evolution, in absence of organic solvents, additional reagents, and catalysts is the more acceptable in point of view of technology (a finished reaction product does not require any purification). The process itself is the nucleophile addition across double bond, and so it can be attributed to the atom-saving technologies. According to data of the dynamic scanning calorimetry (DSC) and the thermogravimetry (TG), oligomers fuse at 130.8–135.6 °С, cross-link at 185–250 °С, and begin their thermal destruction in air at temperatures of 400– 420 °С. The tensile strength at shear of the glued joints on base of oligomers (steel plates overlapped) is 14.2– 23.7 MPa (142–237 kgf/cm2 ). The positive effect from the introduce of 5,5’-bis-benzotriazolyl fragments into structure of bismaleimide thermoreactive oligomers on strength of the glued joints between metal plates was revealed
233 kb

THEORETICAL FUNDAMENTALS OF ELECTROCHEMICAL TREATMENT OF WATER SOLUTIONS

abstract 0921308035 issue 92 pp. 517 – 541 31.10.2013 ru 1959
The present review highlights the theoretical founda-tions of electric activation of aqueous solutions, their characteristics and properties
167 kb

THE STUDY OF ENTEROSORBENT ANTIOXIDANT PROPERTIES OBTAINED OF ADSORPTION ON STARCHES OF ENZYMEANTIOXIDANTS DELIVERED FROM ROOTS OF HORSERADISH

abstract 1301706015 issue 130 pp. 233 – 242 30.06.2017 ru 736
The аrticle is devoted to study of adsorption of enzymes, antioxidants contained in horseradish root on starch to create enterosorbent with anti-oxidant properties. For this goal we have studied adsorption isotherm calculated constants, thermodynamic parameters (change of enthalpy, entropy, and isobaric-isothermal potential); sorption kinetics of enzyme-antioxidants on starch and calculate the main characteristics. The method of producing of enterosorbent - antioxidant on based starches has been developed based on the experimental data. The ready sorbent is a white powder having no taste and smell. In biological fluids and water, it is insoluble. The enterosorbent on starch does not dissolve in water and biological fluids. It is the solid component. This enterosorbent can be used to protect the gastrointestinal tract of humans and animals against a wide variety of oxidants and peroxide. The results of this work will form the basis for the study of the antioxidant properties of the resulting enterosorbent. The results showed that during the tests, the enterosorbent on the starch showed good antioxidant properties. It has high antioxidant activity with respect to hydrogen peroxide
136 kb

THE RESEARCH OF THE ANTIOXIDANT ACTIVITY OF WHEY BASED DRINKS

abstract 0841210009 issue 84 pp. 104 – 111 28.12.2012 ru 1630
Data of the application of researches of vegetative components in reception of drinks from dairy whey of a functional purpose are shown
136 kb

THE RELATIONSHIP BETWEEN PROTECTIVE EFFECT AND QUANTUMCHEMICAL DESCRIPTORS OF THE MOLECULES USED AS THE HYDROGENATION INHIBITORS IN THE ENVIRONMENT MICROBIOLOGICAL CORROSION CAUSED BY DESULFOVIBRIO DESULFURICANS

abstract 1101506075 issue 110 pp. 1153 – 1157 30.06.2015 ru 1193
This publication examines the relationship between the structure of molecules of complexing (descriptors of electronic structure), which are used as inhibitors of hydrogen embrittlement of the steel grade St3, and the content of absorbed hydrogen in model samples-plates made of the above steel. The form of expression of this relationship is the correlation coefficient (CC) by Pearson
153 kb

THE INFLUENCE OF GLUCOSE AND YEAST AUTOLYSATE CONCENTRATION AND THE METHOD OF CULTIVATION ON PRODUCTIVITY OF LACTIC ACID PRODUCER LACTOCOCCUS LACTIS CH5

abstract 0821208014 issue 82 pp. 187 – 196 31.10.2012 ru 1806
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 in the article. The influence of the method of cultivation on the productivity and the speed of the lactis acid synthesis is analyzed
177 kb

THE DIPOLE MOMENTS AND THE STRUCTURE OF THE FOUR-MEMBERED CLOSED-CHAIN ARSENIC COMPOUNDS

abstract 0781204020 issue 78 pp. 234 – 243 30.04.2012 ru 1413
By the method of dipole moments, there has been determined that the tri-coordinated arsenic derivatives (p-XC6H4AsN-R)2 with R= Bu-t in the liquor exist in a cis-form, as for R=С6Н4Х-p the trans-structure is being realized. As for tetra-coordinated derivatives [XC6H4As(S)NBu-t]2 the trans-form is also beeing observed. For ortho-substituted connections, the angles of flat surfaces rotation of benzene rings have been defined
188 kb

SYNTHESIS, HYDROGENATION AND BIOLOGICAL ACTIVITY OF FURAN 1.3-ДИОКСОЛАН WITH UNSATURATED STRUCTURAL FRAGMENTS

abstract 0981404049 issue 98 pp. 663 – 672 30.04.2014 ru 1715
In the article we have optimized reaction conditions of furfurilidenatseton with epichlorohydrin in the presence of a catalyst of tin chloride and held hydrogenation of double bond of 2-methylene -2 - [(2-furyl]-X-1,3 – dioxolan; we have also given the biological activity of some unsaturated furan 1,3- dioxolans
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