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THE “LOVE-HATE” RELATIONSHIP PRESENT IN LIGNOCELLULOSIC MATERIALS
Hubbe, Martin A. - Lucia, Lucian A.

Formato:	info:eu-repo/semantics/article, info:eu-repo/semantics/publishedVersion
Enlaces:	The three main types of chemical components in wood are cellulose, hemicellulose, and lignin. These three components have rather different physical and chemical characteristics. In some respects, the three types of materials can be described as “incompatible.” However, most of…
Fecha:	2007-10-17
Recurso:	Bioresources

Recurso libre

LACTOSE TO NATURALIZE TEXTILE DYES
Bianchini, Roberto - Catelani, Giorgio - Frino, Elena - Isaad, Jalal - Rolla, Massimo

Formato:	info:eu-repo/semantics/article, info:eu-repo/semantics/publishedVersion
Enlaces:	Many natural dyes, for example carminic acid, are soluble in water. We present a simple strategy to naturalize synthetic azadyes through their linkage with lactose to induce their water solubility. The dyeing process of textile fibres then becomes possible in…
Fecha:	2007-10-17
Recurso:	Bioresources

Recurso libre

CUTTING FORCES BY PERIPHERAL CUTTING OF LOW DENSITY WOOD SPECIES
Porankiewicz, Boleslaw - Bermudez E., Julio C. - Tanaka, Chiaki

Formato:	info:eu-repo/semantics/article, info:eu-repo/semantics/publishedVersion
Enlaces:	In this paper multifactor non-linear dependencies of cutting forces from several machining parameters for low density wood of Liriodendron tulipifera Linn., known as Yellow Poplar, and Cordia alliodora Ruiz. & Pav., known as laurel blanco wood or capa prieto, were…
Fecha:	2007-10-17
Recurso:	Bioresources

Recurso libre

ABRASIVE WEAR BEHAVIOUR OF BAMBOO (DENDROCALAMUS STRICTUS) POWDER FILLED POLYESTER COMPOSITES
Dwivedi, Umesh K. - Ghosh, Ajoy - Chand, Navin

Formato:	info:eu-repo/semantics/article, info:eu-repo/semantics/publishedVersion
Enlaces:	An experimental study was conducted to determine the abrasive wear behaviour of different weight percentage bamboo powder filled polyester composites under the multipass mode. The effect of bamboo powder concentration and sliding distance on the weight loss of composites has…
Fecha:	2007-10-17
Recurso:	Bioresources

Recurso libre

INFLUENCE OF TEMPERATURE ON CRACKING AND MECHANICAL PROPERTIES OF WOOD DURING WOOD DRYING – A REVIEW
Oltean, Laura - Teischinger, Alfred - Hansmann, Christian

Formato:	info:eu-repo/semantics/article, info:eu-repo/semantics/publishedVersion
Enlaces:	The occurrence of cracks and loss of mechanical properties are major problems in wood drying, and careful control of drying conditions is necessary in order to avoid this form of defects. Wood drying at different temperatures, especially high temperatures, has…
Fecha:	2007-10-17
Recurso:	Bioresources

Recurso libre

RECYCLING OF CHEMICAL PULP FROM WHEAT STRAW AND CORN STOVER
Tschirner, Urike W. - Barsness, James - Keeler, Tamara

Formato:	info:eu-repo/semantics/article, info:eu-repo/semantics/publishedVersion
Enlaces:	Handsheets produced from corn stalks and wheat straw soda AQ pulps were recycled in the lab. Pulping of corn stalks resulted in a low pulp yield, low bonding strength, and low recyclability. Conversely, wheat straw fiber had a better yield,…
Fecha:	2007-10-17
Recurso:	Bioresources

Recurso libre

MILL DEMONSTRATION OF TMP PRODUCTION FROM FOREST THINNINGS: PULP QUALITY, REFINING ENERGY, AND HANDSHEET PROPERTIES
Zhu, Junyong - Scott, C.T. - Gleisner, R. - Mann, D. - Dykstra, D. P. - Quinn, G. H. - Edwards, L. L.

Formato:	info:eu-repo/semantics/article, info:eu-repo/semantics/publishedVersion
Enlaces:	High-value, large-volume utilization of forest thinning materials from U.S. National Forests is a potentially important contributor to sustainable forest health. This study demonstrated the utilization of wood chips produced from thinnings for the production of thermomechanical pulp (TMP). Both whole-log…
Fecha:	2007-10-17
Recurso:	Bioresources

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EFFECT OF THE MODIFICATION OF LIGNOCELLULOSIC MATERIALS WITH A LIGNIN-POLYMER COMPLEX ON THEIR MULCHING PROPERTIES
Shulga, Galia - Betkers, Talrits - Shakels, Vadims - Neiberte, Brigita - Verovkins, Anris - Brovkina, Julia - Belous, Olga - Ambrazaitene, Dalia - Žukauskaite, Audrone

Formato:	info:eu-repo/semantics/article, info:eu-repo/semantics/publishedVersion
Enlaces:	The lignosulphonate/polymer complex, in which the macromolecules of both components are linked together by physico-chemical bonds, has been applied as a new effective lignin-based soil conditioner (LSC). lt has an adhesive affinity both for mineral soil particles and the organic…
Fecha:	2007-10-17
Recurso:	Bioresources

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OBTAINING OF MICROCRYSTALLINE CELLULOSE FROM SOFTWOOD AND HARDWOOD PULP
Laka, Marianna - Chernyavskaya, Svetlana

Formato:	info:eu-repo/semantics/article, info:eu-repo/semantics/publishedVersion
Enlaces:	Conditions for obtaining microcrystalline cellulose (MCC) by the thermocatalytic method from hardwood (birch, aspen) and softwood (pine) bleached sulphate pulp have been developed. After thermocatalytic treatment, cellulose polymerization degree has decreased to the so-called levelling-off degree of polymerization (LODP), which,…
Fecha:	2007-10-17
Recurso:	Bioresources

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10.

THE STEREOCHEMISTRY AND CONFORMATION OF LIGNIN AS JUDGED BY X-RAY CRYSTALLOGRAPHIC INVESTIGATIONS OF LIGNIN MODEL COMPOUNDS: ARYLGLYCEROL Beta-GUAIACYL ETHERS
Langer, Vratislav - Lundquist, Knut - Parkås, Jim

Formato:	info:eu-repo/semantics/article, info:eu-repo/semantics/publishedVersion
Enlaces:	The conformation of a variety of crystalline lignin models representing different diastereomeric forms of structural elements in lignin of the arylglycerol b-guaiacyl ether type has been studied using X-ray crystallography. Based on X-ray crystallographic data sequences of units attached to…
Fecha:	2007-10-17
Recurso:	Bioresources

Recurso libre

11.

Tg AS AN INDEX OF CONVERSION IN PMDI-IMPREGNATED WOOD
Riedlinger, Darren - Sun, Nanjian - Frazier, Charles E.

Formato:	info:eu-repo/semantics/article, info:eu-repo/semantics/publishedVersion
Enlaces:	It is well established that the glass transition temperature (Tg) is a sensitive measure of cure in neat thermosets. As cure advances, network mobility declines and the Tg rises in a systematic fashion. This study sought to determine if such…
Fecha:	2007-10-17
Recurso:	Bioresources

Recurso libre

12.

BIO-MODIFICATION OF EUCALYPTUS CHEMITHERMO- MECHANICAL PULP WITH DIFFERENT WHITE-ROT FUNGI
Yang, Qifeng - Zhan, Hauiyu - Wang, Shuangfei - Fu, Shiyu - Li, Kecheng

Formato:	info:eu-repo/semantics/article, info:eu-repo/semantics/publishedVersion
Enlaces:	Modification of chemithermomechanical pulp (CTMP) by fungal treatment was investigated. Eucalyptus CTMP was treated with three different types of white-rot fungi, namely, Phanerochaete chrysosporium (P.c-1767), Trametes hirsute 19-6 (T.h-19-6), and Trametes hirsute19-6w (T.h-19-6w), under a stationary culture condition. Pulp total…
Fecha:	2007-10-17
Recurso:	Bioresources

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13.

FAST PYROLYSIS – EFFECT OF WOOD DRYING ON THE YIELD AND PROPERTIES OF BIO-OIL
Dobele, Galina - Urbanovich, Igors - Volpert, Aleksandr - Kampars, Valdis - Samulis, Eriks

Formato:	info:eu-repo/semantics/article, info:eu-repo/semantics/publishedVersion
Enlaces:	The composition and properties of the products of fast pyrolysis of hardwood, obtained in a two-chamber (drying and pyrolytic) ablation type reactor in the temperature range 450-600ºС, were investigated. It has been found that, upon the additional drying of wood…
Fecha:	2007-10-17
Recurso:	Bioresources

Recurso libre

14.

ENZYMATIC-BASED HYDROLYSIS PROCESSES FOR ETHANOL
Taherzadeh, Mohammad J. - Karimi, Keikhosro

Formato:	info:eu-repo/semantics/article, info:eu-repo/semantics/publishedVersion
Enlaces:	This article reviews developments in the technology for ethanol production from lignocellulosic materials by “enzymatic” processes. Several methods of pretreatment of lignocelluloses are discussed, where the crystalline structure of lignocelluloses is opened up, making them more accessible to the cellulase…
Fecha:	2007-10-17
Recurso:	Bioresources

Recurso libre

15.

WHAT HAPPENS TO CELLULOSIC FIBERS DURING PAPERMAKING AND RECYCLING? A REVIEW
Hubbe, Martin A. - Venditti, Richard A. - Rojas, Orlando J.

Formato:	info:eu-repo/semantics/article, info:eu-repo/semantics/publishedVersion
Enlaces:	Both reversible and irreversible changes take place as cellulosic fibers are manufactured into paper products one or more times. This review considers both physical and chemical changes. It is proposed that by understanding these changes one can make better use…
Fecha:	2007-10-17
Recurso:	Bioresources

Recurso libre

16.

FIBER LOADING OF HARDWOOD PULP BY IN-SITU PRECIPITATION OF ALUMINOSILICATE
Chauhan, Vipul Singh - Singh, Surendra Pal - Bajpai, Pramod K.

Formato:	info:eu-repo/semantics/article, info:eu-repo/semantics/publishedVersion
Enlaces:	Sodium aluminosilicate has been precipitated in-situ as filler on hard-wood bleached kraft pulp fibers using papermaker’s alum and sodium silicate. The filler was produced in two ways, first in the absence of the fibers and second in the presence of…
Fecha:	2007-10-17
Recurso:	Bioresources

Recurso libre

17.

STUDIES ON THE FUSION OF LIGNINOLYTIC ENZYME cDNAS AND THEIR EXPRESSION
Xie, Jun - Feng, Lei - Xu, Ning - Yang, Jun - Xu, Xiaoli - Fu, Shiyu

Formato:	info:eu-repo/semantics/article, info:eu-repo/semantics/publishedVersion
Enlaces:	Manganese peroxidase (MnP) and lignin peroxidase (LiP) are two major peroxidases involved in lignin biodegradation. The cDNA mnp1 encoding a kind of MnPs, and cDNA clg5 encoding a kind of LiPs were fused to one cDNA mnp1- clg5 (rmc15) by…
Fecha:	2007-10-17
Recurso:	Bioresources

Recurso libre

18.

CHEMICAL CHARACTERIZATION OF PULP COMPONENTS IN UNBLEACHED SOFTWOOD KRAFT FIBERS RECYCLED WITH THE ASSISTANCE OF A LACCASE/HBT SYSTEM
da Silva, Thiago Alessandre - Mocchiutti, Paulina - Zanuttini, Miguel - Ramos, Luiz Pereira

Formato:	info:eu-repo/semantics/article, info:eu-repo/semantics/publishedVersion
Enlaces:	Oxidative treatments, without and with assistance of a Laccase-Mediator System (LMS), were characterized in relation to their effects on the chemical composition and strength properties of the fibrous fraction of an unbleached recycled softwood kraft pulp. The LMS, composed of…
Fecha:	2007-10-17
Recurso:	Bioresources

Recurso libre

19.

ISOLATION OF PECTIC ACIDS FROM BLEACHED TMP WATER AND AGGREGATION OF MODEL AND TMP PECTIC ACIDS BY CALCIUM
Saarimaa, Ville J. - Parnovich, Andrey V. - Sundberg, Anna C. - Holmborm, Bjarne R.

Formato:	info:eu-repo/semantics/article, info:eu-repo/semantics/publishedVersion
Enlaces:	Pectins are important structural elements in spruce fibres. Alkaline peroxide bleaching of spruce thermomechanical pulp (TMP) causes degradation and demethylation of pectins, yielding high-charge-density pectic acids. The pectic acids in fibres contribute strongly to the negative fibre charge, and the…
Fecha:	2007-10-17
Recurso:	Bioresources

Recurso libre

20.

AKD AND ASA MODEL SURFACES: PREPARATION AND CHARACTERIZATION
Lindfors, Juha - Salmi, Jani - Laine, Janne - Stenius, Per

Formato:	info:eu-repo/semantics/article, info:eu-repo/semantics/publishedVersion
Enlaces:	Model surfaces of alkyl ketene dimer (AKD) and alkenyl succinic anhyd-ride (ASA) were prepared by casting and spin-coating methods. The surface chemical composition and surface topography were investigated by XPS, ellipsometry, AFM and contact angle studies. Spin-coating resulted in layered…
Fecha:	2007-10-17
Recurso:	Bioresources