Knut Lundquist

Showing 73 publications

2014

Important Issues and Results from Knut Lundquist's Lignin Research at Chalmers

Knut Lundquist, Jim Parkås
Journal of Wood Chemistry and Technology. Vol. 35 (1), p. 3-7
Journal article
2014

Absolute Configuration of β- and α-Asymmetric Carbons within β-O-4-Structures in Hardwood Lignin

T. Akiyama, K. Magara, G. Meshitsuka et al
Journal of Wood Chemistry and Technology. Vol. 35 (1), p. 8-16
Journal article
2012

Origin of the acetylated structures present in white birch (Betula pendula Roth) milled wood lignin

J. Rencoret, J. C. del Rio, A. Gutierrez et al
Wood Science and Technology. Vol. 46 (1-3), p. 459-471
Journal article
2011

Revisiting the mechanism of beta-O-4 bond cleavage during acidolysis of lignin. Part 3: Search for the rate-determining step of a non-phenolic C6-C3 type model compound

Hiroaki Ito, Imai Takaaki, Knut Lundquist et al
Journal of Wood Chemistry and Technology. Vol. 31 (2), p. 172-182
Journal article
2011

Biological treatment of Lignocelluloses with white-rot funghi and its applications: Review

Isroi Isroi, Ria Millati, syam Syamsiah et al
BioResources. Vol. 6 (4), p. 5224-5259
Journal article
2011

DIFFERENT TYPES OF PHENOLIC UNITS IN LIGNINS

Knut Lundquist, J. Parkas
BioResources. Vol. 6 (2), p. 920-926
Journal article
2010

7. Functional Groups and Bonding Patterns in Lignin (Including the Lignin-Carbohydrate Complexes)

Gösta Brunow, Knut Lundquist
Lignin and Lignans Advances in Chemistry, p. 267-299
Book chapter
2010

5,5'-Bis(hydroxymethyl)-3,3'-dimethoxybiphenyl-2,2'-diol with a new three-dimensional 3-modal topology of synthons

Vratislav Langer, Knut Lundquist
Acta Crystallographica Section C: Crystal Structure Communications. Vol. 66 (12), p. o606-o608
Journal article
2010

1H NMR Database of Lignin Model Compounds in Different Solvents (supplement)

Knut Lundquist, Shiming Li, Jim Parkås
Report
2009

THE STRUCTURE AND CONFORMATION OF LIGNIN AS JUDGED BY X-RAY CRYSTALLOGRAPHIC INVESTIGATIONS OF LIGNIN MODEL COMPOUNDS: ARYLGLYCEROL β-SYRINGYL ETHERS

Knut Lundquist, Vratislav Langer, Jim Parkås
BioResources. Vol. 4 (2), p. 529-536
Journal article
2009

Fractionation of processed spruce wood obtained in the production of ethanol

Christian Johansson, Knut Lundquist, Hans Theliander
BioResources. Vol. 4 (1), p. 15-25
Journal article
2009

COMPARISON OF THE β-O-4 BOND CLEAVAGE MECHANISM OF C6-C3 AND C6-C2 LIGNIN MODEL COMPOUNDS DURING ACIDOLYSIS

Hiroaki Ito, Tomoya Yokoyama, Yuji Matsumoto et al
15th International Symposium on Wood, Fiber and Pulping Chemistry, Oslo, Norway June 15 – 18 2009, p. P-052
Paper in proceedings
2009

1H NMR Database of Lignin Model Compounds in Different Solvents

Knut Lundquist, Shiming Li, Jim Parkås
Report
2009

1H NMR SPECTRA OF LIGNIN MODEL COMPOUNDS

Shiming Li, Knut Lundquist, Jim Parkås et al
15th International Symposium on Wood, Fiber and Pulping Chemistry, Oslo, Norway June 15 – 18 2009, p. P-003
Paper in proceedings
2008

The Influence of Solvent and Derivatization on the 1H NMR Spectral Properties of Lignin Model Compounds

Shiming Li, Knut Lundquist, Jim Parkås
Proceedings of the10th EUROPEAN WORKSHOP ON LIGNOCELLULOSICS AND PULP, EWLP 2008; KTH Royal institute of Technology, Stockholm, Sweden 25-28 August 2008, p. 312-315
Paper in proceedings
2008

Diastereomer selectivity in the degradation of a lignin model compound of the arylglycerol β-aryl ether type by white-rot fungi

Christina Bohlin, Knut Lundquist, Leif Jönsson
Enzyme and Microbial Technology. Vol. 43 (2), p. 199-204
Journal article
2008

Conformation of 1-aryl-2-aryloxy-1-propanols: threo-1-(4-hydroxy-3-methoxyphenyl)-2-(2-methoxyphenoxy)-1-propanol

Vratislav Langer, Shiming Li, Knut Lundquist
Acta Crystallographica Section C: Crystal Structure Communications. Vol. C64 (10), p. o558-o560
Journal article
2008

The Structure and Conformation of Lignin as Judged by X-ray Crystallographic Investigations of Lignin Model Compounds: Arylglycerol β-Syringyl Ethers

Knut Lundquist, Vratislav Langer, Jim Parkås
Proceedings of the10th EUROPEAN WORKSHOP ON LIGNOCELLULOSICS AND PULP, EWLP 2008; KTH Royal institute of Technology, Stockholm, Sweden 25-28 August 2008, p. 308-311
Paper in proceedings
2007

Reactions of lignin chromophores of the enal and enone types with sulfite

Knut Lundquist, Jim Parkås, Magnus Paulsson et al
BioResources. Vol. 2, p. 334-350
Journal article
2007

Stereoisomers of 1,2-diaryl-1,3-propanediols: erythro forms

Vratislav Langer, Shiming Li, Knut Lundquist
Acta Crystallographica Section C: Crystal Structure Communications. Vol. C63 (3), p. o163-o165
Journal article
2007

Differences in stereo-preference in the oxidative degradation of diastereomers of the lignin model compound 1-(3,4-dimethoxyphenyl)-2-(2-methoxyphenoxy)-1,3-propanediol with enzymic and non-enzymic oxidants

Christina Bohlin, Per-Ola Andersson, Knut Lundquist et al
Journal of Molecular Catalysis - B Enzymatic. Vol. 45 (1-2), p. 21-26
Journal article
2007

Quantitative lignin analysis based on permanganate oxidation

Jim Parkås, Gösta Brunow, Knut Lundquist
BioResources. Vol. 2 (2), p. 169-178
Journal article
2007

The stereochemistry and conformation of lignin as judged by X-ray crystallographic investigations of lignin model compounds: Arylglycerol β-guaiacyl ethers

Vratislav Langer, Knut Lundquist, Jim Parkås
BioResources. Vol. 2 (4), p. 590-597
Journal article
2006

13-C assignments of the carbon atoms in the aromatic rings of lignin model compounds of the arylglycerol β-aryl ether type - Spectral assignments and Reference Data

M Bardet, Knut Lundquist, Jim Parkås et al
Magnetic Resonance in Chemistry. Vol. 44 (10), p. 976-979
Journal article
2006

Quantitative lignin analysis based on permanganate oxidation

Jim Parkås, Gösta Brunow, Knut Lundquist
9th European Workshop on Lignocellulosics and Pulp, August 27-30, Vienna, Austria
Paper in proceedings
2006

2,3-Diaryl-3-hydroxypropionic acid intermediates in the synthesis of threo forms of 1,2-diaryl-1,3-propanediols

Rolf Stomberg, Vratislav Langer, Knut Lundquist
Acta Crystallographica Section C: Crystal Structure Communications. Vol. C62 (12), p. o684-o686
Journal article
2006

Chalcone epoxide intermediates in the syntheses of lignin-related phenylcoumarans

Vratislav Langer, Shiming Li, Knut Lundquist
Acta Crystallographica Section C: Crystal Structure Communications. Vol. C62 (10), p. o625-o627
Journal article
2006

Oxidation Capacity of Laccases and peroxidases as Reflected in Experiments with Methoxy-Substituted Benzyl Alcohols

F Hong, L Jönsson, Knut Lundquist et al
Applied Biochemistry and Biotechnology. Vol. 129-132, p. 303-319
Journal article
2005

Stereoisomers of 3,3′-dimethoxy-4,4′-stilbenequinone

Shiming Li, Knut Lundquist
Holzforschung. Vol. 59 (3), p. 282-284
Journal article
2005

erythro-2-(2,6-Dimethoxy-4-methylphenoxy)-1-(4-hydroxy-3,5-dimethoxyphenyl)propane-1,3-diol

Vratislav Langer, Knut Lundquist, Gerhard E. Miksche
Acta Crystallographica Section E: Structure Reports Online. Vol. E61 (4), p. o1001-o1003
Journal article
2005

threo-2-(2,6-Dimethoxyphenoxy)-1-(4-hydroxy-3,5-dimethoxyphenyl)propane-1,3-diol: a conformational study

Knut Lundquist, Shiming Li, Vratislav Langer
Acta Crystallographica Section C: Crystal Structure Communications. Vol. C61 (4), p. o256-o258
Journal article
2005

Product profiles in enzymic and non-enzymic oxidations of the lignin model compound erythro-1-(3,4-dimethoxyphenyl)-2-(2-methoxyphenoxy)-1,3-propanediol

Christina Bohlin, Per Persson, Lo Gorton et al
Journal of Molecular Catalysis - B Enzymatic. Vol. 35 (4-6), p. 100-107
Journal article
2004

A second polymorph of (+)-pinoresinol-dioxane(1/1).

Rolf Stomberg, Vratislav Langer, Knut Lundquist
Acta Crystallographica Section E: Structure Reports Online. Vol. E60 (1), p. o81-o83
Journal article
2004

Lignins: Natural polymers from oxidative coupling of 4-hydroxyphenyl-propanoids

John Ralph, Knut Lundquist, Gösta Brunow et al
Phytochemistry Reviews (3), p. 29-60
Journal article
2004

(Z)-3-(3,4-Dimethoxyphenyl)-2-(2-methoxyphenoxy)-2-propenoic acid.

Vratislav Langer, Shiming Li, Knut Lundquist et al
Acta Crystallographica Section E: Structure Reports Online. Vol. E60 (2), p. o165-o167
Journal article
2004

Photoyellowing behavior of non-phenolic lignin models representative of end groups and beta-ether structures

Jim Parkås, Magnus Paulsson, Shiming Li et al
Nordic Pulp and Paper Research Journal. Vol. 19 (2), p. 146-154
Journal article
2004

Quantitative lignin analysis

Jim Parkås, G. Brunow, Knut Lundquist
8th European Workshop on Lignocellulosics and Pulp, p. 271-274
Paper in proceedings
2004

(Z)-2,3-Bis(3,4-dimethoxyphenyl)-2-propen-1-ol

Rolf Stomberg, Bo Albinsson, Vratislav Langer et al
Acta Crystallographica Section E: Structure Reports Online. Vol. E60 (5), p. o804-o806
Journal article
2004

Stability of arylglycerols during alkaline cooking

Knut Lundquist, Sverker von Unge
Holzforschung. Vol. 58, p. 330-333
Journal article
2003

Lignin Stereochemistry and its Biosynthetic Implications

Knut Lundquist, Vratislav Langer, Shiming Li et al
12th International Symposium on Wood and Pulping Chemistry, Madison, Wisconsin, USA, June 9-12 2003. Vol. 1, p. 239-244
Paper in proceedings
2003

(Z)-α-Chloromethyl-3,3',4,4'-tetramethoxystilbene

Rolf Stomberg, Vratislav Langer, Shiming Li et al
Acta Crystallographica Section E: Structure Reports Online. Vol. E59 (4), p. o583-o585
Journal article
2003

(+)-Pinoresinol-dioxane (1/1)

Rolf Stomberg, Wilson Ibrahim, Vratislav Langer et al
Acta Crystallographica Section E: Structure Reports Online. Vol. E59 (12), p. o1972-o1974
Journal article
1999

Structural Analysis of Lignin and Lignin Degradation Products

Knut Lundquist, Shiming Li
10th International Symposium on Wood and Pulping Chemistry, Main Symposium, Yokohama, Japan, June 7-10, 1999, p. 2-10
Paper in proceedings
1999

The origin of lignin fluorescence

Bo Albinsson, S. M. Li, Knut Lundquist et al
Journal of Molecular Structure. Vol. 508 (1-3), p. 19-27
Journal article
1998

Investigation of three stilbene derivatives by x-ray crystallography and NMR spectroscopy

R. Stomberg, S. M. Li, Knut Lundquist et al
Acta Crystallographica Section C: Crystal Structure Communications. Vol. 54, p. 1929-1934
Journal article
1997

Qualitative and Quantitative Aspects of Proton NMR Spectroscopy of Lignin

Knut Lundquist
Pre-Symposium Workshop to the 9th International Symposium on Wood and Pulping Chemistry - Advances in Microscopy and NMR Spectroscopy of Lignocellulosic Materials, Quebec, Canada, June 5-6, 1997
Conference contribution
1994

A new method for the analysis of phenolic groups in lignins by 1H NMR spectroscopy

Shiming Li, Knut Lundquist
Nordic Pulp & Paper Research Journal. Vol. 9 (3), p. 191-195
Journal article
1991

1H NMR spectral studies of lignins Quantitative estimates of some types of structural elements

Knut Lundquist
Nordic Pulp & Paper Research Journal. Vol. 6 (3), p. 140-146
Journal article
1990

On the composition of dioxane-water extracts of milled spruce wood: Characterization of hydrophilic constituents (Corrected reprint)

Knut Lundquist, Rune Simonson, Kenneth Tingsvik
Nordic Pulp & Paper Research Journal. Vol. 5 (4), p. 199-199
Journal article
1989

Analysis of lignins by 1H NMR spectroscopy

Knut Lundquist, Kaye Stern
Nordic Pulp & Paper Research Journal. Vol. 4 (3), p. 210-213
Journal article
1986

NMR Studies of Lignins. 7. 1H NMR Spectroscopic Investigation of the Distribution of Erythro and Threo Forms of beta-O-4 Structures in Lignins

Marcelle Hauteville, Knut Lundquist, Sverker von Unge
Acta Chemica Scandinavica. Vol. B 40, p. 31-35
Journal article
1985

On the reactions and degradation of the lignin during steam hydrolysis of aspen wood

Michel Bardet, Danielle R. Robert, Knut Lundquist
Svensk Papperstidning. Vol. 88 (6), p. R61-R67
Journal article
1985

Structural Characterization of Aquatic Humic Substances by NMR Spectroscopy

Knut Lundquist, Nicklas Paxéus, Michel Bardet et al
Chemica Scripta. Vol. 25, p. 373-375
Journal article
1983

Lignin carbohydrate linkages in milled wood lignin preparations from spruce wood

Knut Lundquist, Rune Simonson, Kenneth Tingsvik
Svensk Papperstidning. Vol. 86 (6), p. R44-R47
Journal article
1981

Investigation of lignins from soda and soda/anthraquinone cooking of spruce wood

Knut Lundquist, Rune Simonson, Kenneth Tingsvik
Paperi ja Puu. Vol. 63 (11), p. 709-712, 734
Journal article
1981

Enzymic oxidation of vanillyl glycol

Stellan Bergbom, Göran Karlsson, Knut Lundquist
Svensk Papperstidning. Vol. 84 (18), p. R146-R151
Journal article
1980

Comparison of a synthetic dehydrogenation polymer of coniferyl alcohol with milled wood lignin from spruce, using 1H NMR spectroscopy

Gösta Brunow, Knut Lundquist
Paperi ja Puu. Vol. 62 (11), p. 669-670, 672
Journal article
1980

Studies on lignin carbohydrate linkages in milled wood lignin preparations

Knut Lundquist, Rune Simonson, Kenneth Tingsvik
Svensk Papperstidning. Vol. 83 (16), p. 452-454
Journal article
1979

On the occurrence of carbohydrates in milled wood lignin preparations

Knut Lundquist, Rune Simonson, Kenneth Tingsvik
Svensk Papperstidning. Vol. 82 (9), p. 272-275
Journal article
1977

Isolation of lignin by means of liquid-liquid extraction

Knut Lundquist, Brita Ohlsson, Rune Simonson
Svensk Papperstidning. Vol. 80 (5), p. 143-144
Journal article
1976

Low-molecular weight lignin hydrolysis products

Knut Lundquist
Applied Polymer Symposium. Vol. 28, p. 1393-1407
Journal article
1975

Lignin preparations with very low carbohydrate content

Knut Lundquist, Rune Simonson
Svensk Papperstidning. Vol. 78 (11), p. 390-
Journal article
1973

Formation of low molecular weight phenols from "milled wood lignin" during sulphate and soda cooking

Knut Lundquist
Svensk Papperstidning. Vol. 76 (18), p. 704-710
Journal article
1971

Acid Degradation of Lignin IV. Analysis of Lignin Acidolysis Products by Gas Chromatography Using Trimethylsilyl Derivatives

Knut Lundquist, T. Kent Kirk
Acta Chemica Scandinavica. Vol. 25, p. 889-894
Journal article
1971

Acid Degradation of Lignin VI. Formation of Methanol

Knut Lundquist, Lennart Ericsson
Acta Chemica Scandinavica. Vol. 25 (2), p. 756-758
Journal article
1970

Comparison of sound and white-rotted sapwood of sweetgum with respect to properties of the lignin and composition of extractives

T. Kent Kirk, Knut Lundquist
Svensk Papperstidning. Vol. 73 (9), p. 294-306
Journal article
1961

Estimation of "Uncondensed" Phenolic Units in Spruce Lignin

Erich Adler, Knut Lundquist
Acta Chemica Scandinavica. Vol. 15 (1), p. 223-224
Journal article

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