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
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
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
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
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
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
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
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
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)
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