Voronezh State Agricultural University

Voronezh, Russia
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Ryabtsev S.V.,Voronezh State University | Shaposhnik A.V.,Voronezh State Agricultural University | Samoylov A.M.,Voronezh State University | Sinelnikov A.A.,Voronezh State University | And 3 more authors.
Doklady Physical Chemistry | Year: 2016

Thin films of PdO obtained by thermal oxidation of Pd films in air in the temperature range of 240–800°C were characterized using fast electron diffraction, transmission electron microscopy, and optical spectroscopy. The PdO films were found to be non-stoichiometric. With increasing oxidation temperature, the deviation of the PdO film composition from the stoichiometric component ratio becomes less pronounced. The resistivity response of PdO films to the presence of ozone in air was studied for the first time and good prospects for using this material for gas sensors are demonstrated. © 2016, Pleiades Publishing, Ltd.

Savchenko T.V.,Belgorod State University | Ulez'ko A.V.,Voronezh State Agricultural University | Tyutyunikov A.A.,Voronezh State Agricultural University | Bonda D.G.,Far East State Agrarian University | Prosyannikova Y.A.,Belgorod State University
International Business Management | Year: 2015

The study discusses the issues, concerning an economical category "local food market", describes specific character and main principles of local food markets area organization in Russia. The research offer a methodological approach to die determination of local food markets economical boundaries judging by the territory where the group of economic entities can satisfy their requirements and sell the goods with transaction and logistical costs. The research also provide regional food market development forecast in Amur Region, Russia. © Medwell Journals, 2015.

Shuvaeva G.P.,Voronezh State Technical University | Sysoeva M.G.,Voronezh State Agricultural University
Applied Biochemistry and Microbiology | Year: 2010

Procedures for the production of endo-1,4-β-xylanase have been developed. An active producer-Rhizopus var. microsporus BKMF-595-has been chosen, and the conditions of surface and submerged cultivation, as well as the composition of the culture medium for this strain, have been optimized to ensure maximum yield of the target enzyme. Activity of xylomicrosporin Px equaled 123 U/g, while the activity of xylomicrosporin Gx equaled 25 U/cm3. Homogeneous enzyme preparations, purified 59.44-fold and 72.6-fold, have been obtained. The dependence of endo-1,4-β-xylanase catalytic activity on temperature and pH of the reaction medium has been studied. The enzyme has been shown to be most stable in the pH range 5.0-6.0 and to be thermostable. Amino acid composition and subunit structure of the enzyme were determined; the molecular masses of the subunits equaled 50 and 56 kDa. Carboxyl groups of glutamic and aspartic acid residues of the active center were experimentally shown to play an important role in catalysis. The potential of this enzyme for beer production has been demonstrated. © 2010 Pleiades Publishing, Ltd.

Savchenko T.V.,Belgorod State University | Ulez'ko A.V.,Voronezh State Agricultural University | Kravchenko N.N.,Belgorod State University | Tyutyunikov A.A.,Voronezh State Agricultural University
Research Journal of Pharmaceutical, Biological and Chemical Sciences | Year: 2014

This paper presents the issues of formation of the agro-industrial clusters as a method of restoring the manageability of the integrated development of the agricultural sector in different regions and improvement of the system of production communication between the economic entities within the agro-food complex. The classification of cluster within the agricultural sector is represented, the specifics of the agro-industrial clusters formation is described. The conclusion on the clusters prospects as a form of the agro-industrial integration development is drawn.

Melnikova E.I.,Voronezh State University | Stanislavskaya E.B.,Voronezh State University | Korotkov E.G.,Voronezh State Agricultural University
Foods and Raw Materials | Year: 2015

A crucial task of the dairy industry is the modification of the composition and properties of cheese whey to level its organoleptic characteristics for use of qualitatively new food products in technology, including the one of functional use. The work purpose is the optimization of technological parameters of the microparticulation process of ultrafiltration cheese whey concentrate for its use in the production of low-calorie synbiotic drinks. The research objects are cheese whey, food composition based on it (whey protein microparticulate) and synbiotic drink. When performing work, the standard and commonly used in research practice physical and physical and chemical, chemical and biochemical, microbiological, physiological and technological methods of research were used. For mathematical support of experimental results different methods of statistics and optimization, including the method for artificial neural networks were used. The technology of producing milk fat simulator provides pre-cleaning of whey from casein particles and fat, fractionation and concentration of whey proteins using ultrafiltration, as well as thermomechanical processing of the obtained concentrate. The whey protein microparticulate is close to skimmed milk by physical and chemical properties and chemical composition, and its organoleptic properties simulate drinking cream. The new food composition is characterized by a pronounced prebiotic activity. During the development of synbiotic drink formulation the great importance was given to the selection of probiotic cultures able to synthesis of exopolysaccharides. The research results suggested the formulation and component solution of the synbiotic drink, which involves the replacement of 27% skimmed milk by the new food composition, with the exception of cream, stabilizer and skimmed milk powder. The main advantages of the new technology solution are the implementation of a closed cycle of production, the expansion of low-calorie products of high biological value and the reduction of economic costs. © 2015, KemIFST.

Lipatov D.N.,Moscow State University | Shcheglov A.I.,Moscow State University | Manakhov D.V.,Moscow State University | Zavgorodnyaya Y.A.,Moscow State University | Brekhov P.T.,Voronezh State Agricultural University
Eurasian Soil Science | Year: 2015

The spatial variability of the density, moisture, pH, humus, and benzo[a]pyrene contamination in a structural-metamorphic agrozem within the impact zone of the Yuzhno-Sakhalinsk thermal power plant has been considered. The correlation of the benzo[a]pyrene content with the humus and density in the plow horizon has been revealed. The necessary numbers of sampling points for different problems of ecological monitoring have been planned. © 2015, Pleiades Publishing, Ltd.

Kotov V.V.,Voronezh State Agricultural University | Nenakhov D.V.,Voronezh State Agricultural University | Stekol'Nikov K.E.,Voronezh State Agricultural University
Russian Journal of Electrochemistry | Year: 2010

Characteristics of mass transport of the anions of pyrophosphoric acid are investigated during electrodialysis through MA-40 and MA-41 anion-exchange membranes. It is established that the rate of mass transport for counterions is greater through the MA-41 membrane than the MA-40 membrane, and thus the former can be used for demineralizing solutions with salts of pyrophosphoric acid. Higher selectivity to pyrophosphate ions is found for the MA-40 membrane compared to the MA-41 membrane in the electrodialysis of mixtures of pyrophosphate and hydropyrophosphate ions, and thus the MA-40 membrane can be regarded as promising for the separation of such mixtures. © 2010 Pleiades Publishing, Ltd.

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Home page Dear colleagues! Welcome to the home page of the official website of the theoretical and scientific journal Vestnik of VSAU. The purpose of the journal is to extend the knowledge of contemporary scientific research, advanced experience and know-how and other information in the field of agricultural production ...

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