Current and prospective technological processes of comprehensive hydrolytic conversion of polysaccharide components from renewable biomass to produce protein-containing food additives, bioethanol and furfural, have been reviewed.

Specific electric conductivity (æ) of Sr_1-xSm_xFe_12-xCo_xO₁₉ ferrites has been measured in the 300-1100 K temperature range. It has been determined that conductivity activation energy for Sr_1-xSm_xFe_12-xCo_xO₁₉ ferrites ( x = 0-0,5) in the temperature range above the Fracture temperature ( T_frac) is 0,06-0,14 eV higher than the activation energy in the temperature range below the T_frac. The coefficient of linear thermal expansion (α) for Sr_1-xSm_xFe_12-xCoxO₁₉ ferrites changes slightly when x is increased: from 1,20·10^-5 K^-1 for SrFe₁₂O₁₉ to 1,27·10^-5 K^-1 for Sr_0,5Sm_0,5Fe_11,5Co_0,5O₁₉.

Using the solid-state reaction method, (Pr,Nd,Sm)BaCoFeO_5+δ solid solutions have been synthesized, their lattice constants and oxygen nonstoichiometry have been determined and their thermal expansion and electrical properties have been studied. It has been found that (Pr,Nd,Sm)BaCoFeO_5+δ solid solutions show positive deviations from ideality and their structural parameters, thermal and electrotransport properties can be controlled by intersubstitution of rare earth elements in their structure.

The effect of different surfactants on rheological properties and stability of model oil dispersions has been studied by the rotary rheometry method. It has been determined that the ethylene - propylene oxide block copolymer based on ethylenediamine sugnificantly increases the solvation degree and the thickness of adsorptive-solvate layers on the dispersed particles surface, as compared with other studied surfactants. It improves structural-rheological parameters, thereby causing better screening of the asphaltene particles, to prevent their coagulation and provide stability for oil dispersions.

The template synthesis of silica gel with varied content of salt template formed during precipitation of silica and organic acid salt additives has been studied. It has been shown that addition of sodium sulfate increases the sorption capacity of silica gel samples (1.5 times) and the surface (2 times). It has been found that adding 1% of sodium citrate enhances sorption capacity of the samples of silica 4-fold, with 2-fold increase of surface. Similar changes have been observed while modifying the structure of montmorillonite in the presence of lithium sulfate, increasing the amount of hydrogen bonds in the solvent (water) structure, thereby causing the formation of loose structure during the clay drying.

A number of silica gel samples have been prepared by the template method, using salts as templates. Some of salt reinforce the solvent microstructure, while other, on the contrary, destroy it. In addition, during SiO₂ samples drying, salt crystals are formed acting as templates. It has been shown that the sorption capacity of samples obtained in the presence Na₂SO₄ template, is greater by 173% than for the control sample. On the contrary, the sorption capacity of samples synthesized in presence of RbBr is almost the same as for the the control sample. It has been found that the hydroxide deposition method has a significant impact on the structure of samples and homogeneity of their porosity.

The potentiometric response characteristics of film [CdBr₄]^2--selective electrodes based on trianoniloctadecylammonium iodide (TNODA) in poly(vinyl chloride) (PVC) and solvent mediators (plasticizers) - o -nitrophenyldecyl ether (o-NPDE), dibutyl- and didecylphthalate (DBP, DDP), 1-bromonaphthalene (1-BN), have been investigated. The best result for [CdBr₄]^2-- selective electrode has been obtained for the electrode based on 1-BN. The relationship between the detection limit and Br^- concentration for all [CdBr₄]^2--selective electrodes has been established. The minimum value of detection limit plot (detection limit on -log [Br^-]) was at 0,1 M of Br^-.

Gold nanoparticles (GNPs) are formed under sonication (Elmasonic S 30 H, Germany) and temperature change from 18 to 66^оС in water solutions containing Congo red (CR), polyvinyl alcohol (PVA), ethanol, glycerol and their mixtures. CRefficiently reduces AuCl₄^- to Au⁰ producing GNPs, which size depends on the dye concentration. The yield of the monodisperse GNPs is increased directly proportionally to amount of PVA in medium. The addition of CR in the PVA solution decreaseformation rate and size of GNPs. CR forms associates with GNPs, which aggregate, if they include particles of ~15 nm. Polarizing PVA film prepared from the water-ethanol solution, containing CR and GNPs of ~38 nm in the concentration of 0,15 nM do not differ by absorption spectra, optical transmission and polarization effect from films without nanoparticles.

Catalysts based on iron and manganese hydroxide modified fibrous ion exchangers FIBAN K-4 and FIBAN X-1 have been synthesized and tested for hydrogenation of oxygen dissolved in water. It has been found that polyampholyte FIBAN X-1 samples containing ferric hydroxide are the most active in water deoxygenation: the residual oxygen content under the best process conditions does not exceed 20 g/1, which corresponds to the industry standards. It has been shown that the formation of iron - amino group nitrogen complex in the ion exchanger matrix occurs due to introduction of Fe³⁺ cations in FIBAN X-1 (pH 2-2.2). It has also been shown that iron and manganese hydroxide modified FIBAN X-1 is a highly active catalyst for H₂O₂ decomposition.

A method for synthesis of calcium pectinate nanoparticles with average diameter of 60-260 nm has been developed. It has been established that the size of calcium pectinate nanoparticles can be regulated by changing pH, ionic strength of solution and addition of stabilizer. The calcium pectinate nanoparticles loaded with BSA-FITC (up to 0,58 mg/1 mg of pectin) have been formed.

The effect of 10 % HCl treatment upon chemical, physical composition and porous structure of a natural aluminosilicate catalyst (Al-Si RB) has been investigated. Acid treatment (25,0-250,0 ml/g 10 % HCl) removes CaCO₃, dolomite and increases the specific surface area of the catalyst. Modification of aluminosilicate by 175,0 and 250,0 ml/g 10 % HCl partially removes Al³⁺, Fe^2+/3+, Mg² cations, partly destroys the structure and decreases the specific surface area of catalyst.

The ecdysteroid profile of Silene fruticulosa (Pall.) Schischk growing in Kazakhstan has been investigated. It has been shown that the plant contained ecdysterone (2.4 g/kg of dry weight), 2-deoxyecdysone (0.45 g/kg) and 2-deoxyecdysterone (0.11 g/kg).

Methods of preparation, physical and chemical characteristics for amine salts of basic amino acids (L-arginine, L and DL-lysine, L-ornitine) with acetylsalicylic and ketoglutaric acids, as well as ketoglutaric acid double salts containing L-glutamine as the second cation, have been described. The obtained salts of amino acids are potentially therapeutically important compounds.

By the reaction of L-leucine methyl ester hydrochloride with vanniline and vanillale ethers or esters, corresponding methyl esters of (Е,S)-2-arylidenamino-4-methylpentanoic acids have been synthesised.

The analysis of the structure and function of aromatase (SYP19) - enzyme from the family of cytochrome P-450 that catalyzes the aromatization of six-membered ring A of the steroidal skeleton, namely transformation of androgens into estrogens peripheral and tumor tissues in the body, has been performed, and data in its non-steroidal inhibitors have been summarized.

A new technique for chemical modification of proteins with polycarboxylate metalochelates has been proposed. The conjugates of immunoglobulin and streptavidin, a bacterial protein, with Eu³⁺ complexonates have been synthesized. Protein metallochelate complexes prepared using diethylenetriaminepentaacetic acid dianhydride have been compared to those prepared from mono-N-hydroxysuccinimide ester of Eu³⁺ polycarboxylate complexonate, using dissociation-based timeresolved fluoroimmunoassay systems.

Fibrous amino carboxylic sorbent with cationic exchange capacity of 2.0 m-eq/g and anionic exchange capacity 4.2 m-eq/g has been prepared by new accelerating method from industrial polyacrylonitrile Nitron C fiber. Physical chemical and sorption properties of this material were investigated. It has been determined that: 1) polymer contains two kinds of anion exchange groups with different basicity; 2) swelling of ion exchanger have minimum at pH 9,5-10,0 ( W = 1,5 gН₂О/g); 3) critical relative humidity is ~ 65 %; 4) maximum sorption capacity on sulfur dioxide is ~ 2.5 m-eq/g; 5) length of mass transfer zone is 2.2 mm.

Pseudoplastic flow behavior for solutions of cellulose (7%) and its mixture with chitosan (7,7-9,1 %) in aqueous orthophosphoric acid has been established under equilibrium steady shear flow conditions. The appearance of the quasi-Newtonian area from 20 to 40 s^-1 has been observed in the curves of viscosity versus shear rate caused by orientational ordering of the macromolecules in the flow. For all the solutions shear induced birefringence has been observed. The films cast from these solutions in salt precipitation bath exhibit the birefringent texture.

The effect of organophosphorus compounds and carboxylic acids on the formation of calcium carbonate in supersaturated conditions has been investigated. Introduction of these compounds together results in a synergism effect, reducing deposit formation rate in 3,6-6 times due to a combination of inhibitory action of organophosphorus compounds and carboxylic acids.

It has been found that organophosphates are more efficient as inhibitors for calcium and magnesium carbonate formation and corrosion, whereas polyacrylic acid and its sulphonic modified derivatives act as stabilizers of carbonate dispersion. The binary mixture of organophosphate and polyacrylate demonstrates high efficiency of inhibiting action. The reagent mode and the complex cooling water treatment program at the Mineral Wax Plant have been developed, reducing the water consumption significantly.

It has been suggested to apply a mixture of non-ionic surfactants and salts of multivalent metals, forming hydrated protective covers on the surface of the clay particles that prevents adsorption of cationic collector on them, for sylvinite ore flotation.