Published since January 1, 1947

Holzforschung

Cellulose – Hemicelluloses – Lignin – Wood Extractives

ISSN: 1437-434X

Editor-in-chief: Lennart Salmén

Editorial Board: Geoffrey Daniel, Holger Militz, Thomas Rosenau, Herbert Sixta, Tapani Vuorinen, Dimitris S. Argyropoulos, Yu Balakshin, J. R. Barnett, Ingo Burgert, Jose C. del Rio, Dmitry V. Evtuguin, Charles E. Frazier, Kazuhiko Fukushima, Wolfgang Gindl-Altmutter, W. G. Glasser, Bjarne Holmbom, Akira Isogai, John F. Kadla, Gerald Koch, Dominique Lachenal, Christiane Laine, Shawn D. Mansfield, J.J. Morrell, Peter Niemz, Antje Potthast, Arthur J. Ragauskas, John Ralph, Robert W. Rice, Uwe Schmitt, Tor P. Schultz, Jussi Sipilä, Toshiyuki Takano, Hans Theliander, Johannes Welling, Stefan Willför, Hiroshi Yoshihara

Impact Factor: 2.393

About this journal

Objective
Holzforschung (HF) is an international scholarly journal that publishes cutting-edge research on the biology, chemistry, physics and technology of wood and wood components. High quality papers about biotechnology and tree genetics are also welcome. Rated year after year as one of the top scientific journals in the category of Pulp and Paper (ISI Journal Citation Index), Holzforschung represents innovative, high quality basic and applied research. The German title reflects the journal's origins in a long scientific tradition, but all articles are published in English to stimulate and promote cooperation between experts all over the world. Ahead-of-print publishing ensures fastest possible knowledge transfer.

Topics

Biology, chemistry, physics and technology of wood and wood components
Biotechnology and tree genetics

Article formats
Original articles, Reviews, Short notes

> Information on submission process

Your Benefits

Your benefits:

Cutting-edge research
Interdisciplinary approach
High quality basic and applied research
Ahead-of-print online publications

History

Holzforschung was founded in 1947. At the start, German was the sole publishing language of Holzforschung. In 1955 it became also possible to publish in French and English, and in 1993 the journal switched to an English only publication. This change was necessary as after World War II German was no longer the leading language in the natural sciences. With the significant rise in international attention and distribution, Holzforschung paid tribute to the linguistic needs of the wood science community around the world.

Other publications in the field
Wood Composites. Materials Manufacturing and Engineering. J. Paulo Davim, Alfredo Aguilera (Eds.) De Gruyter. 2016.
Nordic Pulp & Paper Research Journal

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Volume 75 Issue 12

December 2021

Accessible November 25, 2021

Frontmatter

Page range: i-iii

Download PDF

Original Articles

August 9, 2021

Near-infrared spectroscopy and hyperspectral imaging can aid in the prediction and mapping of polyploid acacia hybrid wood properties in tree improvement programs

Dang Duc Viet, Te Ma, Tetsuya Inagaki, Nguyen Tu Kim, Satoru Tsuchikawa

Page range: 1067-1080

Abstract

Acacia, including Acacia hybrids, are some of the most important species grown as part of the Vietnamese wood industry. Rapid methods to identify the variations in the wood properties of Acacia hybrids however, are a currently lacking and creating limits for their breeding programs. In this study, nine Acacia hybrid clones, including those that were diploid, triploid, and tetraploid were evaluated using near-infrared spectroscopy (NIR) and hyperspectral imaging (HSI). The standard normal variate (SNV) and second derivative (SP2D) were applied to compare the performances of NIR and HSI using partial least square regression. The HSI images were acquired at wavelengths from 1033 to 2230 nm and the SNV and SP2D described the variations in the wood properties. The NIR predicted the wood physical properties better than HSI, while they provided similar predictions for the mechanical properties. The mapping results showed low densities around the pith area and high densities near the bark. They also revealed that the air-dry moisture content changed at different positions within a disk and was dependent on its position within the tree. Overall, NIR and HSI were found to be potential wood property prediction tools, suitable for use in tree improvement programs.

Accessible August 2, 2021

Monitoring imbibition dynamics at tissue level in Norway spruce using X-ray imaging

Benoît Martin, Julien Colin, Pin Lu, Mahamadou Mounkaila, Joel Casalinho, Patrick Perré, Romain Rémond

Page range: 1081-1096

More Download PDF

Abstract

The study of moisture migration in Norway Spruce may reduce the discrepancy between measurements and simulations of transfers in buildings and thus be helpful for improving their performance and durability. For this purpose, X-ray imaging was used to study moisture migration in Norway spruce during imbibition at tissue level. Moisture content kinetics in earlywood and latewood, based on X-ray attenuation, was observed and measured through rigorous protocol. The imbibition process was studied in both longitudinal and radial directions. The results showed an easier migration of liquid in latewood than in earlywood in the longitudinal uptake. In the radial direction, the impact of compression wood as a barrier and the role of the anatomical structure in the liquid migration were highlighted by the direct visualization of filled tracheids.

July 22, 2021

Influence of the applied pressure of the transducer on the propagation speed of the ultrasonic wave in wood

Edgar V.M. Carrasco, Rejane C. Alves, Mônica A. Smits, Vinnicius D. Pizzol, Ana Lucia C. Oliveira, Judy N. R. Mantilla

Page range: 1097-1103

Abstract

The non-destructive wave propagation technique is used to estimate the wood’s modulus of elasticity. The propagation speed of ultrasonic waves is influenced by some factors, among them: the type of transducer used in the test, the form of coupling and the sensitivity of the transducers. The objective of the study was to evaluate the influence of the contact pressure of the transducers on the ultrasonic speed. Ninety-eight tests were carried out on specimens of the species Eucalyptus grandis , with dimensions of 120 × 120 × 50 mm. The calibration of the pressure exerted by the transducer was controlled by a pressure gauge using a previously calibrated load cell. The robust statistical analysis allowed to validate the experimental results and to obtain consistent conclusions. The results showed that the wave propagation speed is not influenced by the pressure exerted by the transducer.

July 29, 2021

Prediction of shear strength parallel to grain in clear wood of oak (Quercus robur L.) on the basis of shear plane orientation, density and anatomical traits

Guillermo Riesco Muñoz

Page range: 1104-1114

Abstract

Oak wood is popular for use in construction and as flooring. Evaluating the mechanical strength of oak timber is difficult and time consuming. Therefore, models for predicting mechanical properties, based on easy-to-obtain variables, may be useful. The purpose of the study was to build models for predicting shear strength parallel-to-grain in oak clear wood. With this goal, the shearing resistance was tested on 198 defect-free specimens (target dimensions 50 × 50 mm in tested section) obtained from a sample of 40 oak trees felled in north-western Spain. The mean shear strength of the sampled oak wood provenance was 15 N mm −2 , which was almost equal to the highest mean value reported in previous studies. Analysis of the relationships between the variables tested enabled development of a model relating shear strength parallel to grain at 12% moisture content, with air-dry wood density and angle between tangential and shear plane as predictor variables ( R adj 2 ${R}_{\text{adj}}^{2}$ = 0.61, p < 0.01, bias = −0.80%, RMSE = 13.66%, for wood with wavy grain; R adj 2 ${R}_{\text{adj}}^{2}$ = 0.36, p < 0.01, bias = −1.46%, RMSE = 17.22%, for wood without wavy grain). The independence of shear strength relative to the presence/absence of sapwood or the annual growth ring width was also demonstrated.

Open Access August 6, 2021

Sound absorption characteristics of three species (binuang, balsa and paulownia) of low density hardwood

Eun-Suk Jang, Chun-Won Kang

Page range: 1115-1124

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Abstract

In this study, the sound absorption coefficient of three low density hardwoods – binuang, balsa and paulownia – were investigated. Their gas permeability and pore size were measured, and their pore shapes were classified into through pore, blind pored, and closed pore, as specified by the International Union of Pure and Applied Chemistry (IUPAC). Among the three species, obvious that paulownia had lowest sound absorption when the two of others showed higher sound absorption. Although paulownia is a high porosity wood, most of its vessels are blocked by tyloses; it is therefore difficult for sound waves to enter its pores, which results in poor sound absorption performance. This study showed that the higher the through pore porosity, the higher was the gas permeability, which led to improvement of the sound absorption performance. It was also found that the sound absorption coefficient of the three species woods increased at low frequencies as the size of an air cavity between the specimens and tube’s wall increased.

July 29, 2021

Thermal conductivity of untreated and chemically treated poplar bark and wood

Oliver Vay, María Busquets-Ferrer, Gerhard Emsenhuber, Christian Huber, Wolfgang Gindl-Altmutter, Christian Hansmann

Page range: 1125-1135

Abstract

The thermal insulation properties of bark and wood of a poplar tree ( Populus nigra × alba ) were investigated using a guarded hot plate device (GHP) and a purpose-built miniature heat flow meter (Mini-HFM). To reduce their density and improve their performance as insulation material, bark and wood were chemically treated. The correlation between thermal conductivity and test temperature as well as between thermal conductivity and material moisture was investigated. By means of the treatment 44 and 34% of the mass of bark and wood, respectively, was removed and the equilibrium moisture content of the both materials decreased significantly. For untreated bark, a thermal conductivity of 0.071 Wm −1 K −1 and 0.140 Wm −1 K −1 , respectively, were determined in transverse and axial direction. For wood, measurements showed comparably higher conductivities of 0.078 Wm −1 K −1 and 0.204 Wm −1 K −1 in transverse and axial direction. By reducing density, thermal conductivity of bark decreased up to 24%, whereas for wood reductions between 10 and 35% were found. It was shown that the self-constructed Mini-HFM is a useful and reliable instrument to determine the thermal conductivity on a small wood sample in the three main anatomical directions.

July 30, 2021

Sorption behavior and swelling of citric acid and sorbitol (SorCA) treated wood

Katarzyna Kurkowiak, Lukas Emmerich, Holger Militz

Page range: 1136-1149

Abstract

Citric acid together with sorbitol (SorCA) have been used to modify wood and improve its properties, such as dimensional stability and biological durability, which partly result from its swelling and sorption behavior. However, the underlying mechanism of water interaction with SorCA-treated wood is very complex and not fully understood. Previous research confirmed cell wall bulking and suggested cross-linking, however the extent of their contribution to moisture-induced changes has not been researched. This study investigated the effect of SorCA treatment on sorption properties of wood in the hygroscopic range (0–95% RH). Scots pine sapwood ( Pinus sylvestris L.) was chemically modified with an aqueous SorCA solution at different treatment levels and measured by dynamic vapor sorption (DVS). The observed permanent increase in oven-dry dimensions did not result in a decreased swelling compared to untreated specimens. It was ascribed to the excessive expansion of cell wall matrix caused by a degradation of cell wall constituents by the acidic impregnation solution. However, a reduction in moisture content in comparison to untreated reference was detected. Present findings suggest that the SorCA polyester structure is altered after impregnation inside the wood and affects its sorption behavior by covalent bonding and, presumably, cross-linking with wood polymer constituents.

August 2, 2021

Reaction mechanisms of furfuryl alcohol polymer with wood cell wall components

Xiaoshuang Shen, Dengkang Guo, Pan Jiang, Gaiyun Li, Sheng Yang, Fuxiang Chu

Page range: 1150-1158

Abstract

Wood properties of furfurylation can be altered by reaction mechanisms of furfuryl alcohol polymer (PFA) and cell walls. Although chemical reactions between PFA and lignin have been studied, reaction mechanisms between PFA and cell wall components, including lignin, cellulose and hemicellulose are still not comprehensively understood. In order to elucidate chemical reactions regarding PFA with wood cell walls, model compounds of main cell wall components were used to investigate its reactions with PFA by 13 C NMR spectroscopy and differential scanning calorimetry (DSC). Results showed that there was no chemical bonding of PFA with either cellulose or hemicellulose. Condensations of uncrowded ring positions ( meta, ortho and para ) and side chains (α–C, β–C, β–OH, and γ–OH) of lignin with PFA did occur based on 13 C NMR spectra. Reaction enthalpy and activation energy also confirmed the condensation reactions between lignin and PFA. This study could provide design guidelines to control the chemical reactions of PFA in cell walls and lignin and, therefore, improve the properties of furfurylated wood.

Ahead of Print / Just Accepted

Ahead of Print / Just Accepted

Volume 75 (2021)

Volume 74 (2020)

Volume 73 (2019)

Volume 72 (2018)

Volume 71 (2017)

Volume 70 (2016)

Volume 69 (2015)

Volume 68 (2014)

Volume 67 (2013)

Volume 66 (2012)

Volume 65 (2011)

Volume 64 (2010)

Volume 63 (2009)

Volume 62 (2008)

Volume 61 (2007)

Volume 60 (2006)

Volume 59 (2005)

Volume 58 (2004)

Volume 57 (2003)

Volume 56 (2002)

Volume 55 (2001)

Volume 54 (2000)

Volume 53 (1999)

Volume 52 (1998)

Volume 51 (1997)

Volume 50 (1996)

Volume 49 (1995)

Volume 48 (1994)

Volume 47 (1993)

Volume 46 (1992)

Volume 45 (1991)

Volume 44 (1990)

Volume 43 (1989)

Volume 42 (1988)

Volume 41 (1987)

Volume 40 (1986)

Volume 39 (1985)

Volume 38 (1984)

Volume 37 (1983)

Volume 36 (1982)

Volume 35 (1981)

Volume 34 (1980)

Volume 33 (1979)

Volume 32 (1978)

Volume 31 (1977)

Volume 30 (1976)

Volume 29 (1975)

Volume 28 (1974)

Volume 27 (1973)

Volume 26 (1972)

Volume 25 (1971)

Volume 24 (1970)

Volume 23 (1969)

Volume 22 (1968)

Volume 21 (1967)

Volume 20 (1966)

Volume 19 (1965)

Volume 18 (1964)

Volume 17 (1963)

Volume 16 (1962)

Volume 15 (1961)

Volume 14 (1960)

Volume 13 (1959)

Volume 12 (1958)

Volume 11 (1958)

Volume 10 (1957)

Volume 9 (1955)

Volume 8 (1954)

Volume 7 (1953)

Volume 6 (1952)

Volume 5 (1951)

Volume 4 (1950)

Volume 3 (1949)

Volume 2 (1948)

Volume 1 (1947)

5-year Impact Factor	2.363
Cite Score	3.8
Impact Factor	2.393
Journal Citation Indicator	1.07
SCImago Journal Rank	0.518
Source Normalized Impact per Paper	0.960

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You can easily submit your manuscript online. Simply go to http://mc.manuscriptcentral.com/holz and you will be guided through the whole peer-reviewing and publishing process.

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Before submitting your article please have a look at our Instructions_for_Authors
Submission of your paper via our submission management tool
Peer review process (you will be guided through every step)
Decision on your paper (4-6 weeks for submission to first decision)
When manuscripts are accepted subject to revision, the revised manuscript should be returned within approx. 60 days
Accepted papers are promptly published online ahead-of-print as soon as they have been finally processed

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Manuscripts must be written in clear and concise English
Before submitting your article please have a look at our Ethical Guidelines and our Copyright Transfer Agreement
Once your article is accepted you have the option to publish it open access
Our Repository Policy allows you to distribute 30 PDF copies of your published article to colleagues (the PDF has to include the information that it is an author's copy). Please also feel free to distribute the link to the online abstract
If you have any general questions please visit our FAQ for authors or contact us at: Holzforschung.Editorial@degruyter.com

We look forward to receiving your manuscript!

Hybrid Open Access

In this journal, authors have the option to publish their article under an open access license. Open Access allows you as an author to retain copyright and share your findings with colleagues and interested parties worldwide without any restraints.
Please note that authors from institutions with which we have a transformative agreement can publish open access without paying an article processing charge (APC). More information on the eligible institutions and articles can be found under the "Funding and Support" tab here.

Editorial

Editor-in-Chief
Lennart Salmén, Sweden

Editorial Board
G. Daniel, Sweden
H. Militz, Germany
T. Rosenau, Austria
H. Sixta, Austria
T. Vuorinen, Finland

Advisory Board
D.S. Argyropoulos, USA
M.Y. Balakshin, USA
J. Barnett, UK
I. Burgert, Switzerland
D.V. Evtuguin, Portugal
C.E. Frazier, USA
K. Fukushima, Japan
G. Gellerstedt, Sweden
W. Gindl-Altmutter, Austria
W.G. Glasser, USA
B. Holmbom, Finland
A. Isogai, Japan
J.F. Kadla, Canada
M. Kleen, Finland
G. Koch, Germany
D. Lachenal, France
S.D. Mansfield, Canada
J.J. Morrell, USA
P. Niemz, Switzerland
A. Potthast, Austria
A.J. Ragauskas, USA
J. Ralph, USA
R.W. Rice, USA
U. Schmitt, Germany
T.P. Schultz, USA
J. Sipilä, Finland
J. Welling, Germany
S.M. Willför, Finland
H. Yoshihara, Japan

Editorial Office
Gunda Stöber
Holzforschung
Dr Gruyter
Genthiner Strasse 13
10785 Berlin, Germany
Tel. ++49-30-26005-279
E-mail: Holzforschung.Editorial@degruyter.com

(Deutsch)

Online ISSN: 1437-434X
Print ISSN: 0018-3830
Type: Journal
Language: English
Publisher: De Gruyter
First published: January 1, 1947
Publication Frequency: 12 Issues per Year
Audience: Researchers in the field of biology, chemistry, physics and technology of wood and wood components