Knut Lundquist

Visar 73 publikationer

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
Artikel i vetenskaplig tidskrift
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
Artikel i vetenskaplig tidskrift
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
Artikel i vetenskaplig tidskrift
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
Artikel i vetenskaplig tidskrift
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
Artikel i vetenskaplig tidskrift
2011

DIFFERENT TYPES OF PHENOLIC UNITS IN LIGNINS

Knut Lundquist, J. Parkas
BioResources. Vol. 6 (2), p. 920-926
Artikel i vetenskaplig tidskrift
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
Kapitel i bok
2010

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

Knut Lundquist, Shiming Li, Jim Parkås
Rapport
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
Artikel i vetenskaplig tidskrift
2009

1H NMR Database of Lignin Model Compounds in Different Solvents

Knut Lundquist, Shiming Li, Jim Parkås
Rapport
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 i proceeding
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
Artikel i vetenskaplig tidskrift
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
Artikel i vetenskaplig tidskrift
2009

Oxidation of the erythro and threo forms of the phenolic lignin model compound 1-(4-hydroxy-3-methoxyphenyl)-2-(2-methoxyphenoxy)-1,3-propanediol by laccases and model oxidants

Christina Bohlin, Knut Lundquist, Leif J. Jönsson
Bioorganic Chemistry. Vol. 37, p. 143-148
Artikel i vetenskaplig tidskrift
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 i proceeding
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 i proceeding
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
Artikel i vetenskaplig tidskrift
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
Artikel i vetenskaplig tidskrift
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 i proceeding
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
Artikel i vetenskaplig tidskrift
2007

Quantitative lignin analysis based on permanganate oxidation

Jim Parkås, Gösta Brunow, Knut Lundquist
BioResources. Vol. 2 (2), p. 169-178
Artikel i vetenskaplig tidskrift
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
Artikel i vetenskaplig tidskrift
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
Artikel i vetenskaplig tidskrift
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
Artikel i vetenskaplig tidskrift
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
Artikel i vetenskaplig tidskrift
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 i proceeding
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
Artikel i vetenskaplig tidskrift
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
Artikel i vetenskaplig tidskrift
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
Artikel i vetenskaplig tidskrift
2005

Quantitative analysis of lignins based on permanganate oxidation (Method "phenolic")

Jim Parkås, Knut Lundquist, Gösta Brunow
Rapport
2005

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

Shiming Li, Knut Lundquist
Holzforschung. Vol. 59 (3), p. 282-284
Artikel i vetenskaplig tidskrift
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
Artikel i vetenskaplig tidskrift
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
Artikel i vetenskaplig tidskrift
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
Artikel i vetenskaplig tidskrift
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
Artikel i vetenskaplig tidskrift
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
Artikel i vetenskaplig tidskrift
2004

Stability of arylglycerols during alkaline cooking

Knut Lundquist, Sverker von Unge
Holzforschung. Vol. 58, p. 330-333
Artikel i vetenskaplig tidskrift
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
Artikel i vetenskaplig tidskrift
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
Artikel i vetenskaplig tidskrift
2004

Quantitative lignin analysis

Jim Parkås, G. Brunow, Knut Lundquist
8th European Workshop on Lignocellulosics and Pulp, p. 271-274
Paper i proceeding
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
Artikel i vetenskaplig tidskrift
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
Artikel i vetenskaplig tidskrift
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
Artikel i vetenskaplig tidskrift
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 i proceeding
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 i proceeding
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
Artikel i vetenskaplig tidskrift
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
Artikel i vetenskaplig tidskrift
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
Övrigt konferensbidrag
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
Artikel i vetenskaplig tidskrift
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
Artikel i vetenskaplig tidskrift
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
Artikel i vetenskaplig tidskrift
1989

Analysis of lignins by 1H NMR spectroscopy

Knut Lundquist, Kaye Stern
Nordic Pulp & Paper Research Journal. Vol. 4 (3), p. 210-213
Artikel i vetenskaplig tidskrift
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
Artikel i vetenskaplig tidskrift
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
Artikel i vetenskaplig tidskrift
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
Artikel i vetenskaplig tidskrift
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
Artikel i vetenskaplig tidskrift
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
Artikel i vetenskaplig tidskrift
1981

Enzymic oxidation of vanillyl glycol

Stellan Bergbom, Göran Karlsson, Knut Lundquist
Svensk Papperstidning. Vol. 84 (18), p. R146-R151
Artikel i vetenskaplig tidskrift
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
Artikel i vetenskaplig tidskrift
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
Artikel i vetenskaplig tidskrift
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
Artikel i vetenskaplig tidskrift
1977

Isolation of lignin by means of liquid-liquid extraction

Knut Lundquist, Brita Ohlsson, Rune Simonson
Svensk Papperstidning. Vol. 80 (5), p. 143-144
Artikel i vetenskaplig tidskrift
1976

Low-molecular weight lignin hydrolysis products

Knut Lundquist
Applied Polymer Symposium. Vol. 28, p. 1393-1407
Artikel i vetenskaplig tidskrift
1975

Lignin preparations with very low carbohydrate content

Knut Lundquist, Rune Simonson
Svensk Papperstidning. Vol. 78 (11), p. 390-
Artikel i vetenskaplig tidskrift
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
Artikel i vetenskaplig tidskrift
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
Artikel i vetenskaplig tidskrift
1971

Acid Degradation of Lignin VI. Formation of Methanol

Knut Lundquist, Lennart Ericsson
Acta Chemica Scandinavica. Vol. 25 (2), p. 756-758
Artikel i vetenskaplig tidskrift
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
Artikel i vetenskaplig tidskrift
1961

Estimation of "Uncondensed" Phenolic Units in Spruce Lignin

Erich Adler, Knut Lundquist
Acta Chemica Scandinavica. Vol. 15 (1), p. 223-224
Artikel i vetenskaplig tidskrift

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