Н. Г. Базарнова Редакционный совет

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Название	Н. Г. Базарнова Редакционный совет
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Дата	24.02.2013
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Стерическая эксклюзионная хроматография водорастворимых полисахаридов 23
Impact of xylanase pretreatment on peroxide bleaching stage of hemp pulp 47
Новый компонент achillea filipendulina lam. 108
Сравнительная характеристика антиоксидантной активности водных и спиртовых извлечений чаги 128
Энергозатраты при роспуске вторичного волокна
Aizenstadt M.A., Bogolitsyn K.G.
Steric exclusion chromatography of water soluble polysaccharides
Drachev A.A., Sevastyanova Yu.V, Komarov V.I., Milovidova L.A.
Drachev A.A., Sevastyanova Yu.V., Komarova V.I., Milovidova L.A.
Impact of xylanase pretreatment on peroxide bleaching stage of hemp pulp
Khviyuzov S.S., Kosyakov D.S., Bogolitsyn K.G., Gorbova N.S.
Golyazimova O.V., Politov A.A.
Golyazimova O.V., Politov A.A., Lomovski O.I.
Gubin K.V., Hanina M.A.
U. cannabina
Asilbekova D.T., Tursunkhodjayeva F.M.
Karpova E., Kchramova E.P., Fershalova T.D.
Begonia L. (Begonia
Artemkina N.A.
Bezhuasvili M.G., Musashvili N.D.
...
Полное содержание

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Reviews

Пероксидазное окисление лигнина
и его модельных соединений 6

^ СТЕРИЧЕСКАЯ ЭКСКЛЮЗИОННАЯ ХРОМАТОГРАФИЯ ВОДОРАСТВОРИМЫХ ПОЛИСАХАРИДОВ 23

Исследование добавки лиственной щепы на деформационные и прочностные свойства
хвойной сульфатной целлюлозы 33

Влияние добавок химикатов при сульфатной варке на свойства хвойной целлюлозы 41

^ IMPACT OF XYLANASE PRETREATMENT ON PEROXIDE BLEACHING STAGE OF HEMP PULP 47

ВЛИЯНИЕ МОЛЕКУЛЯРНОЙ МАССЫ НА КИСЛОТНО-ОСНОВНЫЕ СВОЙСТВА СУЛЬФАТНОГО ЛИГНИНА В СИСТЕМЕ
ВОДА – ДИМЕТИЛСУЛЬФОКСИД 51

Увеличение эффективности измельчения лигноцеллюлозного растительного сырья
с помощью химической обработки 57

Механическая активация ферментативного гидролиза лигноцеллюлозы 64

ЛИПИДЫ МЕРИСТЕМ ЛЕСООБРАЗУЮЩИХ ХВОЙНЫХ ПОРОД ЦЕНТРАЛЬНОЙ СИБИРИ В УСЛОВИЯХ НИЗКОТЕМПЕРАТУРНОЙ АДАПТАЦИИ. 1. ХАРАКТЕРИСТИКА СОСТАВА ЖИРНЫХ КИСЛОТ ФОСФОЛИПИДОВ ЗИМУЮЩИХ МЕРИСТЕМ Larix sibirica Ledeb., Picea obovata L. и Pinus sylvestris L. 71

ЛИПИДЫ МЕРИСТЕМ ЛЕСООБРАЗУЮЩИХ ХВОЙНЫХ ПОРОД ЦЕНТРАЛЬНОЙ СИБИРИ В УСЛОВИЯХ НИЗКОТЕМПЕРАТУРНОЙ АДАПТАЦИИ. 2. ОСОБЕННОСТИ МЕТАБОЛИЗМА ЖИРНЫХ КИСЛОТ ФОСФОЛИПИДОВ МЕРИСТЕМ Larix sibirica Ledeb., Picea obovata L. и Pinus sylvestris L. 77

Низкочастотные движения молекулярного сгустка-12 в картофельном амилопектине в процессе созревания клубня. Влияние белых шумов 84

Изучение химического состава надземной части
uRTICA CANNABINA L. флоры Сибири 96

Разработка технологии получения фланорина из Pseudosophora alopecuroides 100

Липиды листьев Capparis spinosa L. 104

^ НОВЫЙ КОМПОНЕНТ ACHILLEA FILIPENDULINA LAM. 108

Флавоноиды и аскорбиновая кислота
у некоторых представителей рода Begonia L. 112

содержание фенолов в коре Ели на разных стадиях техногенной сукцессии биогеоценозов
Кольского полуострова 118

Идентификация производных Пирокатехина и Сирингила в кожицЕ винограда красных технических сортов 124

^ СРАВНИТЕЛЬНАЯ ХАРАКТЕРИСТИКА АНТИОКСИДАНТНОЙ АКТИВНОСТИ ВОДНЫХ И СПИРТОВЫХ ИЗВЛЕЧЕНИЙ ЧАГИ 128

Влияние алкилирования на состав
и выход битумоидов торфа 132

Формирование пористой структуры активных углей из брикетов сухой окорки лиственницы сибирской 139

Влияние сроков поражения лиственницы сибирским шелкопрядом на процессы углеобразования 143

производство древесно-волокнистых плит сухим способом 149

ЭФФЕКТИВНость ИСПОЛЬЗОВАНИЯ ВТОРИЧНОГО ВОЛОКНА В ПРОИЗВОДСТВЕ древесно-вОлокнистых плит 154

^ ЭНЕРГОЗАТРАТЫ ПРИ РОСПУСКЕ ВТОРИЧНОГО ВОЛОКНА
ПРИ ПРОИЗВОДСТВЕ ДРЕВЕСНО-ВОЛОКНИСТЫХ ПЛИТ 159

Особенности использования ножевой гарнитуры с ударным воздействием при размоле волокнистой массы 164

Процесс безножевой обработки волокнистой суспензии в установке «струя–преграда» 168

Размол волокнистых полуфабрикатов нетрадиционным способом 176

Содержание флавоноидов в природных популяциях Artemisia absinthium L., произрастающей в лесостепной зоне Западной Сибири 181

Александр Васильевич Кучин 183

Памяти Владимира Николаевича Крестинского
(08.04.1882 – 22.10.1939) 185

Решение IV Всероссийской конференции
«Новые достижения в химии и химической технологии растительного сырья» 188

Авторский указатель №2 (2009) 190

Сведения об авторах 192

CONTENTS 196

^ Aizenstadt M.A., Bogolitsyn K.G. Peroxidase catalyzed oxidation of lignin and lignin model compounds

At present time, plant and fungous peroxidases are considered to play the main role in oxidation decomposition of lignin. It’s generally agreed by the majority of researchers that the most perspective oxidizers of lignin and lignin model compounds are lignin-peroxidase, manganese- peroxidase and laccase. However, number of papers is devoted to the application of plant peroxidase, such as horseradish peroxidase (HRP), for such purposes.

Data on the application of such enzymes as catalysts over the reaction of oxidation of lignin and lignin model compounds by hydrogen peroxide are given in the present paper. Structure and mechanism of catalytic action of different peroxidases is compared. Plant and fungous peroxidases have similar structure, but higher stability and wider pH optimum are revealed for plant peroxidases. Therefore, studies on the influence of functional groups, multilayer properties and regularities of redox transformation under the oxidation of lignin and lignin model compounds by hydrogen peroxide, using plant peroxidases as catalysts, will be prospective research area.

Keywords: enzymes, lignin peroxidase, manganese peroxidase, laccase, horseradish peroxidase, catalytic oxidation, lignin, lignin model compounds.

Boymirzaev A.S.^ STERIC EXCLUSION CHROMATOGRAPHY OF WATER SOLUBLE POLYSACCHARIDES

Principles of steric exclusion chromatography (SEC) of water-soluble polysaccharides are considered. Influences of parameters chromatographic system to elution properties of polymers were analyzed. It is marked, that the analysis of molecular mass parameters of polysaccharides in SEC is complicated by presence of some electrostatic and polyelectrolyte effects, and also formation of molecular aggregates and associates in solutions under investigation.

^ Drachev A.A., Sevastyanova Yu.V, Komarov V.I., Milovidova L.A. Investigation of effect of hardwood chips addition on deformation and strength properties of softwood kraft pulp

The effect of softwood chips addition and main cooking characteristics (charge of active alkali, temperature and cooking duration) on yield, deformation and strength characteristics of spruce sulphate pulp is studied.

It is established that addition of softwood pulp within 0–20% of mass of wooden raw material followed by simultaneous change of cooking parameters has no effect on yield and kappa number of softwood pulp. Change of species composition of raw material effects the mechanical strength characteristics of produced pulp samples.

It is established that self-strength of fiber (L₀) in the investigated scope of cooking characteristics increases with the growth of softwood chips share. It is shown that increase of hardwood content in the raw material results in enhancing interfibrillar bonding force.

Addition of hardwood content up to 15…20% could be realized in spruce sulphate pulp production without notable change of the main pulp characteristics in the wide scope of kappa number values of pulp.

Keywords: sulphate pulp, anthraquinones, dispersing agents, yield takes place, kappa number, breaking length, bursting strength, tear strength.

^ Drachev A.A., Sevastyanova Yu.V., Komarova V.I., Milovidova L.A. Effect of chemicals addition in sulphate cooking on spruce pulp properties

Data on efficiency evaluation of the chemical additives use (anthraquinones (AQ – А, В, С) and dispersing agents (SAS – 1, 2, 3, 4)) are analyzed in production of spruce sulphate pulp within the range of kappa number of 30–0.

It is established that the use of all anthraquinone modifications results in considerable reduction of shive content in pulp in comparison with control samples. Addition of AQ results in some increase of breaking length (L) and bursting strength (П). Such increase is the most evident for pulp samples with kappa number of 30. Tear strength (R) decreases when anthraquinones are added, the decrease of such property being most evidently observed for pulp with kappa number of 30.

Addition of dispersing agents in sulphate cooking of spruce pulp results in reduction of dirt content testifying improvement of impregnation process. No change of kappa number and pulp yield takes place.

Joint use of anthraquinone and dispersing agent hasn’t resulted in improving results in comparison with cooking when only anthraquinone is added.

The obtained results allow drawing conclusions that the use of anthraquinone is the most reasonable in cooking spruce sulphate pulp. Use of dispersing agents in production of the given pulp turned to be inefficient.

Keywords: sulphate pulp, anthraquinones, dispersing agents, yield takes place, kappa number, breaking length, bursting strength, tear strength.

Cil I., Bermek H., Atik C.^ IMPACT OF XYLANASE PRETREATMENT ON PEROXIDE BLEACHING STAGE OF HEMP PULP

Pretreatment of hemp pulp with xylanase was investigated. Unbleached hemp pulp was treated with commercial xylanase, and then bleached with hydrogen peroxide. Control pulp bleached with out xylanase was compared with xylanase bleached pulp. Application of xylanase was found to have a positive effect on followed peroxide stage in terms of low kappa number and high brightness of pulp.

Keywords: hemp, xylanase, peroxide, bleaching.

^ Khviyuzov S.S., Kosyakov D.S., Bogolitsyn K.G., Gorbova N.S. The effect of molecular mass on the kraft lignin acid-base properties in the system water-dimethylsulphoxide

The aim of the work is the investigation on the molecular mass effect on the acid-base properties of industrial lignin preparation in the system water-DMSO of different compositions. The acidity constants of four fractions of kraft lignin with different molecular mass were determined using the method of UV-spectrophotometric titration. The dependences of рК_а values of phenolic groups of the three types of lignin macromolecule structural units from molecular weight M_w obtained are linear. The effect of molecular weight and solvent composition on the acidity constants was analysed.

Keywords: acid-base properties, acidity constants, lignin, phenolic hydroxylic group, molecular mass, dimethylsulphoxide.

^ Golyazimova O.V., Politov A.A. Intensification of raw material grinding with chemical treatment

Intensification of grinding process of raw material and simultaneous reducing of mechanical effect intensity is an actual problem. Application of less power-intensive technology is necessary for product quality retention and profitability growth. Influence of acid, alkaline, and enzyme hydrolysis on grinding effectiveness was studied. Different components of raw materials: cellulose, hemicellulose and lignin were altered with enzyme, acid and alkaline hydrolysis. Hydrolysis of lingocarbohydrate matrix, especially amorphous cellulose is responsible for cellulose supramolecular structure modification, intermolecular bonds disruption and fibers strength degradation. The effectiveness of raw material grinding depends on the type of machine. Untreated corn and wheat straw was more effectively grinded on disintegrator and jet(-type) mill. The most effective grinding mode of treated straw is ball milling.

This investigation made it possible to suggest new method of raw material grinding.

Keywords: Grinding, intensification, raw material, supramolecular structure, preliminary chemical treatment, enzyme treatment.

^ Golyazimova O.V., Politov A.A., Lomovski O.I. Mechanical activation of lignocellulose enzyme hydrolysis

Enzyme saccharification of lignocellulose raw material is the first step in the process of the bioethanol production. Lignocellulose raw materials are composed of biopolymers: cellulose, lignin, hemicellulose and pectins. These components of lignocellulose matrix make difficult the process of enzyme cellulose conversion. Crystallinity of cellulose is another limiting factor which inhibits the hydrolysis rate. Low conversion rate reduces production profitability and prevent its commercialization. In spite of numerous efforts in this area and existing different pretreatment techniques the problem of saccharification improving is actual as the most of introduced methods have application in laboratory scale only.

Intermittent mechanical treatment of lignocellulose is efficient and safe method of improving cellulose reactivity. When the rate of enzyme hydrolysis reaction is falling the substrate is separated from solution, dried and grinded and then hydrolyzed. Treatment allows us to raise reactivity of lignocellulose due to extend of cellulose accessible surface and reducing of cellulose crystallinity. This method application made it possible to obtain 90 % carbohydrate extent conversion.

Keywords: Intensification, enzyme hydrolysis, lignocellulose, corn straw, intermittent, mechanical treatment.

Alaudinova E.V., Mironov P.V. Lipids of a meristem of forest forming coniferous breeds of the Central Siberia in conditions low temperature adaptations. 1.The characteristic of phospholipids fatty acids composition of wintering meristems of Larix sibirica Ledeb., Picea obovata L. and Pinus sylvestris L.

Results of research of fatty acids composition of buds meristems phospholipids of the basic coniferous forest forming breeds of the Central Siberia are introduced: Larix sibirica Ledeb., Picea obovata L. fnd Pinus sylvestris L. in the winter in a condition low temperature resistance of meristems and in the spring at loss low temperature resistance. It is shown, that change of a phenological state of a tree at transition from rest to vegetation is accompanied by considerable transformation composition of fatty acids of phospholipids the living tissues, expressed not only in change of the content of individual fatty acids, rates of components of one or various types, but also in disappearance of some fatty acids which are presented at wintering buds.

Keywords: Larix sibirica Ledeb., Picea obovata L., Pinus sylvestris L., meristems, phospholipids, fatty acids, seasonal changes.

Alaudinova E.V., Mironov P.V. Lipids OF meristems of forest forming coniferous breeds of the Central Siberia in conditions low temperature adaptations. 2. Features of a metabolism of phospholipids fatty acids of meristems of Larix sibirica Ledeb., Picea obovata L. and Pinus sylvestris L.

It is established, that during the winter period prevailing groups of unsaturated fatty acids (FA) are: at Larix sibirica Ledeb. trienoic, at Picea obovata L. and Pinus sylvestris L. dienoic. Swelling of buds is accompanied by decrease in the content unsaturated FA approximately on 30 % in the spring. The analysis of change of the content in phospholipids structure individual FA type С₁₈ at transition of a tree from winter rest to vegetation has found out an important functional role in formation cryoresistent conditions of cellular membranes meristems of аll investigated breeds of the acyl-lipid ω6 desaturase, which responsible for synthesis linoleic (С_18:2) acids. The special importance in cryoadaptation of the meristematic cells of Larix sibirica Ledeb is besides, revealed acyl-lipid ω3 desaturases, during the winter period catalysed transformation linoleic (С_18:2) acids in linolenoic (С_18:3) in phospholipids of Larix sibirica Ledeb in 1,5-3 times more intensively, than at Picea obovata L. and Pinus sylvestris L.

Keywords: Larix sibirica Ledeb., Picea obovata L., Pinus sylvestris L., polyunsaturated fatty acids, activity of acyl-lipid desaturases, low temperature resistance.

Zubow K.V., Zubow A.V., Zubow V.A. Low Frequency Movement of Cluster-12 in Potato Amylopectin During Growth. Influence of white noises

The thermal decomposition of potato starch from the North of Germany and of pure amylopectin isolated from genetically modified potatoes was studied by flicker noise spectroscopy (FNS) in the temperature interval between 294 and 525 K. The FNS-spectra of cluster oscillations in the amorphous region of starch and amylopectin macromolecules during potato growth in summer 2006 were shown. On the cluster level, in amylopectin, there were found secondary building units (SBU), which consist of 12 α-D-glycopyranose units in the form of a spiral of two meanders of polymer chains (cluster-12). Based on the clusters in starch and amylopectin (grape like model) the row containing the following cluster-12 units as SBU can be derived: 1; 2; 3; 4; 5; 7; 9; 13 etc.. The formation of this row in stationary waves of white noises penetrating the Earth was suggested. The formation energy of the cluster-12 depended on temperature and changed in the interval from –35...-220 J/mol and activation energy of thermal moving was in the interval from –6 to 5 kJ/mol. Amylopectin was in the amorphous area of the starch macromolecule in the form of super coils built by sub coils of macromolecular branches. The Zubow` equation, connecting masses of clusters (m, Dalton) with the frequencies of their oscillations (ω, Hz) was given.

Keywords: super coil, cluster, flicker noise spectroscopy, row of clusters, activation energy, white noise.

^ Gubin K.V., Hanina M.A. Study of chemical composition of Urtica cannabina L. from Western Siberia

Urtica cannabina L. – is a plant, which is growing wild in different regions of the Western Siberia.

Methods of investigation: analyses of compounds were performed by TLC (SiO₂) and paper chromatography. Analyses of quantity of compounds were performed by spectrophotometry, titrimetric, gravimetric methods.

We determined that ^ U. cannabina contains phenolocarbonic acids, flavonoids, coumarins, tannins, polysaccharide complex, carotenoids, phylloquinone, and chlorophyll.

Keywords: Urtica cannabina, carotenoids, phylloquinone, chlorophyll.

Khalilov R.M., Mamatkhanov A.U., Sоtimov G.B., Mamatkhanova M.A. Development of the technology of processing of flanorin from Pseudosophora alopecuroides

The roots and rhizomes of Pseudosophora alopecuroides were offered as a production scale source for processing of the medical preparation which consists of flavonoids sum. For obtaining an identical composition of flavonoids’ sum and for removing main admixtures the consecutive extraction method was used. The ethanol was applied as a selective extragent for flavonoids isolation. The effective ways of Pseudosophora’s extract purification was offered.

Keywords: flanorin, flavonoids, technology, extraction, рseudosophora alopecuroides.

^ Asilbekova D.T., Tursunkhodjayeva F.M. Lipids of leaves from Capparis spinosa L.

Lipid components of Capparis spinosa auct. (Capparaceae family) leaves had been investigated. Neutral and polar lipids and their fatty acid composition were described.

Keywords: Capparaceae family, Capparis spinosa auct., capers, neutral and polar lipids, fatty acids.

Serkerov S.V., Mustafayeva S.J. New components of Achillea filipendulina Lam.

Elevated parts of Achillea filipendulina Lam., collected during mass flowering in Guba area of Azerbaijan has investigated. The individual substance by C₃₀H₅₀O₂ structure and max temperature of fusion (t.f.) 1730. 1645. 890 sm^–1 has allocated by chromatography on Al₂O₃ (neutral. III-IV degree of activity) column of the sums of the extractive substances received by extraction by 96° ethanol. Saponification of I results to hydroxylcontaining derivative (II) by C₂₈H₄₈O structure with max t.f. 3350, 1645 sm^–1.

Compounds has a structure 3β-acetoxi-24α-methil-kholest-20(21)-en (I) had proved on the basis of chemical and spectral (IR-, ¹Н, ¹³С, Dept. 135 NMR) data of I and II).

Keywords: Asteraceae, Achillea filipendulina Lam., 3β-actoxy-24α-methyl-holest-20(21)-еn.

^ Karpova E., Kchramova E.P., Fershalova T.D. Flavonoids and ascorbic acid in the representatives of the genus Begonia L.

The contents of flavonoids (including glycosides of quercetin and kaempferol), anthocyanins and ascorbic acid in overground part of plants of 7 species and cultivars of genus ^ Begonia L. (Begonia bahiensis, B. bowerae, B. carolineifolia, B. fischeri, B. heracleifolia, B. ‘Erythrophylla’, B. ‘Helen Teupel’) are determined. The contents of flavonoids were 24–650 mg% of dry weight, including glycosides of quercetin – 3–76 mg%. Kaempferol glycosides was detected only in species of section Gireoudia (1,2–5,7 mg%). The contents of anthocyanins were between 60 and 157 mg%, ascorbic acid – 5–43 mg% of fresh weight. Studied plants of Begonia can be considered as the sources of biologically active compounds with antioxidant and antimicrobial activity.

Keywords: Begonia, flavonoids, quercetin, kaempferol, anthocyanins, ascorbic acid.

^ Artemkina N.A., Gorbacheva T.T. phenols content in bark of PICEA at different STAGES OF TECHNOGENIC SUCCESSION of kola peninsula spruce biocenoses

Some particularities of total phenols contents and their monomer forms change in bark of Picea obovata Ledeb. are investigated at different stages of technogenic succession. Significant differences in bark content of ferulic, vanillic and β-rezorcilic acids and nonlinear character of phenols content alteration are observed with a maximum at a stage of defoliating forests. The received results allow considering some changes in phenols metabolism as nonspecific reaction of vegetation to stress.

^ Bezhuasvili M.G., Musashvili N.D. Identification in the Skins OF RED Technical Sorts of Grapes produced from Pirokatekhini and Siringili

The purpose of the research is the identification of new non-antocyanis compositions (I and II) isolated from the skin of of grape saferavi sort. Identification was conducted with the methods of UK-Spectroskopy,Chromato-MAS-Spectriscopy and thinlayer Chromatography. Composition I- was identified as -3,4-(Dihydroxyphenyl)-1-propan-1-on, i.e. Pirokatekhin-1-Propan-1-on and composition II -(3,5-Dimetoksi-4-Hydroksi)-1-Butan-1-on or Siringili-1-Butan-1-on.The skins of Otskhanuri Safere and Kaberne types of grapes also contain indetified compositions.

Keywords: identification; pirocatekhin-1-propan-1-on; siringili-1-butan-1-on.

Sisoeva M.A.,. Yumaeva L.R., Gamaiourova V.S., Ziyatdinova G.K., Budnikov G.K., Halitov F.G. ^ THE COMPARATIVE CHARACTERISTIC OF THE ANTIOXIDANT ACTIVITIES OF THE WATER AND ALCOHOL CHAGA EXTRACTS

It was carried out additional extraction of biologically active compounds from the residue of chaga, which appears after water extraction of chaga. An extraction with ethyl alcohol was used for this purpose. It was shown that antioxidant activity of alcohol extracts and their components are higher than antioxidant activity of water extracts from the corresponding chaga mushroom.

Keywords:chaga, water extract, residue, alcohol extracts, melanin, sediment, antioxidant activity (АОА).

^ Zherebtsov S.I., Musin Yu.V., Moiseev A.I. Effect of alkylation on composition and yield of bitumens of peat

Results of experiments are presented and a number regression dependence on effect of conditions of alkylation of peat n-butanol at presence orthophosphoric acid on a yield of extractives is obtained. It is shown, that catalytic butylation considerably increases a yield of extractives, element composition of samples of peat changes. Changes of group and individual compositions of fractions bitumen, occurring in a course butylation peat are investigated. Reactions esterification and interesterification underlies increase an yield of bitumen from alkylated peat. Various joints from peat can act as alternative raw materials for the chemical industry.

Keywords: Peat, bitumen, wax, alkylation, etherification.

Simkin Yu.Ia., Besrdin I.N. Absorbent carbon made of dry debarking Siberian larch pellet porous structure formation

Unitary block carbon made of dry debarking Siberian larch pellet porous structure formation was studied at the activation with superheated water steam process. There are differences at organization of external and internal layers adsorptive pores of absorbent carbon were surveyed on conditions that pieces of coal were scorched for 15, 30 and 50 percent.

Keywords: pellet, dry debarking waste products, Siberian larch (Larix sibirica), coal, adsorbent, porous structure.

^ Еpiphantseva N.S., Simkin Yu.Ya. Аn influence of siberian silkmoth’s lesion of siberian larch period on coal-forming process

It was researched how a larch wood desiccated for different periods from Siberian silkmoth’s action affects on chemical composition, thermostability, wood components’ coal-forming capacities and obtained charcoal technical characteristics. It is shown that it is possible to obtain industrial sorts «B» and «V» charcoal from larch wood desiccated up to 12 years.

Keywords: Siberian larch (Larix sibirica), Siberian silkmoth, charcoal.

Chistova N.G.^ FIBER BOARD PRODUCTION WITH THE HELP OF DRY PROCESS

Fibrous raw material. The influence of constructive and technological grinders’ parameters on the quality of wood grinding, physical-mechanical fiber board properties in dry way production has been investigated. The program of experimental research has been fulfilled in order to obtain mathematical models describing the object investigated and searching optimum conditions of system operation. Calculated dependence of qualitative grinding and fiber board density on dominating parameters of grinders has been obtained.

Keywords: Fibrous raw material, power, secondary ground wood, hydro beater, mathematical model, technological process.

Petrusheva N.A., Chistova N.G., Zaripov Z.Z., Chigov A.A., Alashkevich U.D. EFFICIENCY of USE of a SECONDARY FIBRE In MANUFACTURE WOODFIBERS of plates

In work the results of researches on optimization of process of processing of a secondary fiber in manufacture woodfibers of plates by a wet way are submitted. The application for processing a secondary fiber uncut of the equipment instead of traditional conic mill is reasonable.

Chistova N.G., Alashkevich U.D., Petrusheva N.A.^ POWER CONSUMPTION DEPENDENCE IN THE PROCESS OF SECONDARY DEFIBERING IN FIBER BOARD PRODUCTION

Fibrous raw material. With the help of mathematical modeling methods and experimental planning has been defined power consumption used when processing secondary ground wood in the hydro beater, and the influence of main technological parameters of this process on it. Have been obtained mathematical models adequately describing technological process of secondary fiber treatment. To a great extent, this allowed to reduce specific power consumption as compared to existing processing methods.

Keywords: power, secondary ground wood, fibrous raw material, hydro beater, mathematical model, technological process, secondary fiber.

Kozhukhov V.A., Alashkevich J.D. Features of the use of knife sets with shock exposure during grinding fibrous masses

Article analyzes the theoretical and experimental research in the field of grinding knife in the way of impact on the fibrous material in order to create in high-speed disk mill effect stupas, which will improve the quality of
grinding fibers and increase the productivity of milling.

Keywords: grinding, impact, fibrous slurry, cutting edge.

^ Alashkevich J.D., Marchenco R.A., Reshetova N.S. The process beznozhevoy processing
fibrous slurry the installation of «jet-barrier»

Article a brief overview of the main advantages and disadvantages knifeless grinding. The goal of research is to study the influence of the number of blades movable barrier on the grinding process. The results of study of the effect of different number of blades on paperforming properties of fiber suspensions, and physical properties of finished
castings. Revealed that controlling the number of turbine blades hydrodynamical installation can be combined with improved paperforming and the physical and mechanical performance, lower cost of electricity

Keywords: knifeless grinding, cavitation, turbine, fibrous material.

^ Alashkevich J.D., Voronin I.A., Kovalyov V.I., Reshetova N.S. Beating of fibrous half-finished products in the nonconventional way

In article is presented a design procedure of power influence on fibrous suspension of working bodies in beating to installation with inertial movement of bodies. The Purpose of researches is calculation of the effort having on the area of one tooth of an inertial body at various speeds of rotation of a rotor, definition of influence of district speed of movement of inertial bodies on process beating fibrous half-finished products. In article the results of experimental researches showing dependence of quality indicators of fibrous weight and a ready paper from power influence on fibrous suspension of working bodies in beating to installation with inertial movement of bodies are presented.

Keywords: beating, inertial bodies, fibrous suspension, force of inertia.

Shaldaeva Т.М. Flavonoid content in natural populations of Artemisia absinthium L. growing in the forest-steppe zone of West Siberia

The experimental data on flavonoid content of ^ Artemisia absinthium L. from natural habitats in the south of West Siberia are given. Populations with the greatest amount of flavonoids have been determined for the purpose of possible use.

Keywords: Artemisia absinthium L., flavonoid.

Научное издание

ХИМИЯ

^ РАСТИТЕЛЬНОГО СЫРЬЯ

2 • 2009

Зарегистрировано Министерством РФ по делам печати,
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Свидетельство о регистрации ПИ №77-16614 от 24.10.2003.

Литературный редактор: Н.Я, Тырышкина

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