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BETA
Lindström, Mikael, ProfessorORCID iD iconorcid.org/0000-0002-2900-4713
Alternative names
Publications (10 of 168) Show all publications
de Carvalho, D. M., Marchand, C., Berglund, J., Lindström, M., Vilaplana, F. & Sevastyanova, O. (2020). Impact of birch xylan composition and structure on film formation and properties. Paper presented at 15th European Workshop on Lignocellulosics and Pulp (EWLP), JUN 26-29, 2018, Aveiro, Portugal. Holzforschung, 74(2), 184-196
Open this publication in new window or tab >>Impact of birch xylan composition and structure on film formation and properties
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2020 (English)In: Holzforschung, ISSN 0018-3830, E-ISSN 1437-434X, Vol. 74, no 2, p. 184-196Article in journal (Refereed) Published
Abstract [en]

Commercial birch xylan (CX) and alkali-soluble birch xylan (ASX) were subjected to controlled acetylation and used for film formation in the presence (20% and 40%) or absence of plasticizers (i.e. glycerol, sorbitol and xylitol). Although the content of Klason lignin was similar (1.2-1.4%), the acetylation process was favored by the high-purity CX (97% xylan) over the ASX (89% xylan). On the other hand, the presence of residual pectin heteropolysaccharides rather than xylan in the ASX sample was beneficial for film formation. These heteropolysaccharides seemed to act as natural plasticizers during film formation, allowing the formation of coherent films from ASX, even in the absence of an external plasticizer. The use of plasticizers favored the mechanical properties of films, especially in a dosage of 40%, when plastic behavior was created. Acetylation favored the film formation and slightly improved the mechanical properties of the films, and this improvement was in the same range as that achieved when using 20% plasticizer in non-acetylated ASX.

Place, publisher, year, edition, pages
Walter de Gruyter, 2020
Keywords
birch xylan, controlled acetylation, physico-mechanical properties, plasticizer, thermochemical properties
National Category
Chemical Engineering
Identifiers
urn:nbn:se:kth:diva-268778 (URN)10.1515/hf-2018-0224 (DOI)000510621600011 ()2-s2.0-85066132162 (Scopus ID)
Conference
15th European Workshop on Lignocellulosics and Pulp (EWLP), JUN 26-29, 2018, Aveiro, Portugal
Note

QC 20200225

Available from: 2020-02-25 Created: 2020-02-25 Last updated: 2020-02-25Bibliographically approved
Lindén, P. A., Lindström, M., Lawoko, M. & Henriksson, G. (2020). Stabilising mannose using sodium dithionite at alkaline conditions. Paper presented at 15th European Workshop on Lignocellulosics and Pulp (EWLP), JUN 26-29, 2018, Aveiro, Portugal.. Holzforschung, 74(2), 131-140
Open this publication in new window or tab >>Stabilising mannose using sodium dithionite at alkaline conditions
2020 (English)In: Holzforschung, ISSN 0018-3830, E-ISSN 1437-434X, Vol. 74, no 2, p. 131-140Article in journal (Refereed) Published
Abstract [en]

The kraft process remains the dominant-chemical pulping process but still struggles with extensive hemicellulose degradation. Such degradation has previously been mitigated through the use of anthraquinone; but due to it recently being found to have carcinogenic properties, anthraquinone is now being phased out. One alternative, sodium dithionite, was initially investigated in the 1950s but was found to be unviable. The present study investigated whether sodium dithionite could be made viable through the use of different processing parameters, using mannose as a model compound and measuring the yield of mannitol in the various systems using gas chromatography with flame ionization detection (GC-FID) and nuclear magnetic resonance (NMR). Alkalinity was found to be crucial; at pH 14 as well as pH 7, dithionite indeed proved unviable, but if pH was kept at either 8 or 10 significant reduction was seen to occur. The best results were obtained at pH 10 when a lower temperature (70 degrees C) was used to compensate for alkaline degradation of the mannose reactant.

Place, publisher, year, edition, pages
Walter de Gruyter, 2020
Keywords
glucomannan, mannose, peeling reaction, reductive reaction, sodium dithionite
National Category
Materials Engineering
Identifiers
urn:nbn:se:kth:diva-268780 (URN)10.1515/hf-2018-0225 (DOI)000510621600005 ()2-s2.0-85066310075 (Scopus ID)
Conference
15th European Workshop on Lignocellulosics and Pulp (EWLP), JUN 26-29, 2018, Aveiro, Portugal.
Note

QC 20200225

Available from: 2020-02-25 Created: 2020-02-25 Last updated: 2020-02-25Bibliographically approved
Dogaris, I., Lindström, M. & Henriksson, G. (2019). Critical parameters for tall oil separation I: The importance of the ratio of fatty acids to rosin acids. TAPPI Journal, 18(9), 547-555
Open this publication in new window or tab >>Critical parameters for tall oil separation I: The importance of the ratio of fatty acids to rosin acids
2019 (English)In: TAPPI Journal, ISSN 0734-1415, Vol. 18, no 9, p. 547-555Article in journal (Refereed) Published
Abstract [en]

Tall oil is a valuable byproduct in chemical pulping of wood, and its fractions have a large spectrum of applications as chemical precursors, detergents, and fuel. High recovery of tall oil is important for the economic and environmental profile of chemical pulp mills. The purpose of this study was to investigate critical parameters of tall oil separation from black liquor. To investigate this in a controlled way, we developed a model test system using a "synthetic" black liquor (active cooking chemicals OH- and HS- ions), a complete process for soap skimming, and determination of recovered tall oil based on solvent extraction and colorimetric analysis, with good reproducibility. We used the developed system to study the effect of the ratio of fatty acids to rosin acids on tall oil separation. When high amounts of rosin acids were present, tall oil recovery was low, while high content of fatty acids above 60% significantly promoted tall oil separation. Therefore, manipulating the content of fatty acids in black liquor before the soap skimming step can significantly affect the tall oil solubility, and hence its separation. The findings open up chemical ways to improve the tall oil yield. Application: Controlling the ratio of fatty acids to rosin acids in kraft pulping can significantly affect the tall oil separation and improve its yield and quality.

Place, publisher, year, edition, pages
TECH ASSOC PULP PAPER IND INC, 2019
National Category
Mechanical Engineering
Identifiers
urn:nbn:se:kth:diva-262797 (URN)10.32964/TJ18.9.547 (DOI)000488856500003 ()
Note

QC 20191021

Available from: 2019-10-21 Created: 2019-10-21 Last updated: 2019-10-21Bibliographically approved
Halysh, V., Sevastyanova, O., de Carvalho, D. M., Riazanova, A., Lindström, M. & Gomelya, M. (2019). Effect of oxidative treatment on composition and properties of sorbents prepared from sugarcane residues. Industrial crops and products (Print), 139, Article ID UNSP 111566.
Open this publication in new window or tab >>Effect of oxidative treatment on composition and properties of sorbents prepared from sugarcane residues
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2019 (English)In: Industrial crops and products (Print), ISSN 0926-6690, E-ISSN 1872-633X, Vol. 139, article id UNSP 111566Article in journal (Refereed) Published
Abstract [en]

Efficient sorbents for the removal of cationic dye were prepared from sugarcane bagasse (stalk) and straw (leaves) by oxidative pre-treatment with hydrogen peroxide (H2O2) in acetic acid. The effects of variables, such as concentration of H2O2, temperature and time on the properties of the fiber sorbents obtained were studied according to a 2(3) full-factorial design. For comparison, an oxidative treatment of sugarcane biomass with glacial acetic acid was also used. The yields of the materials obtained and their chemical composition were characterized and compared. Fourier transform infrared spectroscopy, field-emission scanning electron microscopy and benzene vapor adsorption were used to investigate the structural properties and morphology of the initial materials and sorbents. The sorption of methylene blue dye was used to assess the efficiency of dye removal by the sorbents. The pre-treatment conditions significantly affected the sorbent yield, their chemical composition (contents of cellulose, lignin and ash) as well as their sorption properties. The cellulosic sorbent (C-sorbent) from sugarcane bagasse obtained by pre-treatment with H2O2 in acetic acid and the lignocellulosic sorbent (LC-sorbent) from sugarcane straw obtained by pre-treatment with glacial acetic acid, had the highest sorption capacity for the methylene blue dye. For both types of sorbents, the sorption capacity increased with chemical pretreatment as a result of an increase in pore volume.

Place, publisher, year, edition, pages
ELSEVIER, 2019
Keywords
Sugarcane, Straw, Bagasse, Oxidation, Sorbent
National Category
Polymer Chemistry
Research subject
Fibre and Polymer Science
Identifiers
urn:nbn:se:kth:diva-260986 (URN)10.1016/j.indcrop.2019.111566 (DOI)000484646900086 ()2-s2.0-85069568922 (Scopus ID)
Note

QC 20191010

Available from: 2019-10-10 Created: 2019-10-10 Last updated: 2019-11-26Bibliographically approved
Budnyak, T. M., Pylypchuk, I. V., Lindström, M. & Sevastyanova, O. (2019). Electrostatic Deposition of the Oxidized Kraft Lignin onto the Surface of Aminosilicas: Thermal and Structural Characteristics of Hybrid Materials. ACS Omega, 4(27), 22530-22539
Open this publication in new window or tab >>Electrostatic Deposition of the Oxidized Kraft Lignin onto the Surface of Aminosilicas: Thermal and Structural Characteristics of Hybrid Materials
2019 (English)In: ACS Omega, ISSN 2470-1343, Vol. 4, no 27, p. 22530-22539Article in journal (Refereed) Published
Abstract [en]

In recent years, functional polymeric compounds have been widely used to modify the silica surface, which allows one to obtain the corresponding organomineral composites for broad application prospects. In this case, lignin-a cross-linked polyphenolic macromolecule-is of great interest according to its valuable properties and possible surplus as a by-product of pulp and paper industry and various biorefinery processes. Hybrid materials based on kraft softwood lignin and silica were obtained via the electrostatic attraction of oxidized lignin to the aminosilica surface with different porosities, which were prepared by the amination of the commercial silica gel with an average pore diameter of 6 nm, and the silica prepared in the lab with the oxidized kraft lignin and lignin-silica samples with an average pore diameter of 38 nm was investigated by physicochemical methods: two-dimensional nuclear magnetic resonance (NMR), P-31 NMR, Fourier transform infrared spectroscopy, thermogravimetric analysis in nitrogen and air atmosphere, scanning electron microscopy, and adsorption methods. After oxidation, the content of carboxylic groups almost doubled in the oxidized lignin, compared to that in the native one (0.74 mmol/g against 0.44 mmol/g, respectively). The lignin content was deposited onto the surface of aminosilica, depending on the porosity of the silica material and on the content of amino groups on its surface, giving lignin-aminosilica with 20% higher lignin content than the lignin-aminosilica gel. Both types of lignin-silica composites demonstrate a high sorptive capacity toward crystal violet dye. The suggested approach is an easy and low-cost way of synthesis of lignin-silica composites with unique properties. Such composites have a great potential for use as adsorbents in wastewater treatment processes.

Place, publisher, year, edition, pages
American Chemical Society (ACS), 2019
National Category
Chemical Sciences
Identifiers
urn:nbn:se:kth:diva-266727 (URN)10.1021/acsomega.9b03222 (DOI)000505078800029 ()31909336 (PubMedID)
Note

QC 20200117

Available from: 2020-01-17 Created: 2020-01-17 Last updated: 2020-01-17Bibliographically approved
Berglund, J., Mikkelsen, D., Flanagan, B., Dhital, S., Henriksson, G., Lindström, M., . . . Vilaplana, F. (2019). Hydrogels of bacterial cellulose and wood hemicelluloses as a model of plant secondary cell walls. Paper presented at National Meeting of the American-Chemical-Society (ACS), MAR 31-APR 04, 2019, Orlando, FL. Abstracts of Papers of the American Chemical Society, 257
Open this publication in new window or tab >>Hydrogels of bacterial cellulose and wood hemicelluloses as a model of plant secondary cell walls
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2019 (English)In: Abstracts of Papers of the American Chemical Society, ISSN 0065-7727, Vol. 257Article in journal, Meeting abstract (Other academic) Published
Place, publisher, year, edition, pages
AMER CHEMICAL SOC, 2019
National Category
Paper, Pulp and Fiber Technology
Identifiers
urn:nbn:se:kth:diva-257620 (URN)000478860502446 ()
Conference
National Meeting of the American-Chemical-Society (ACS), MAR 31-APR 04, 2019, Orlando, FL
Note

QC 20190918

Available from: 2019-09-18 Created: 2019-09-18 Last updated: 2019-10-16Bibliographically approved
de Carvalho, D. M., Moser, C., Lindström, M. & Sevastyanova, O. (2019). Impact of the chemical composition of cellulosic materials on the nanofibrillation process and nanopaper properties. Industrial crops and products (Print), 127, 203-211
Open this publication in new window or tab >>Impact of the chemical composition of cellulosic materials on the nanofibrillation process and nanopaper properties
2019 (English)In: Industrial crops and products (Print), ISSN 0926-6690, E-ISSN 1872-633X, Vol. 127, p. 203-211Article in journal (Refereed) Published
Abstract [en]

This paper investigated the impact of the amounts of lignin and hemicelluloses on cellulose nanofibers (CNFs). Birch and spruce wood were used to prepare holocellulose and cellulose samples by classical methods. To better assess the effect of the chemical composition on the CNF performance and simplify the process for CNF preparation, no surface derivatization method was applied for CNF preparation. Increased amounts of hemicelluloses, especially mannans, improved the defibration process, the stability of the CNFs and the mechanical properties, whereas the residual lignin content had no significant effect on these factors. On the other hand, high lignin content turned spruce nanopapers yellowish and, together with hemicelluloses, reduced the strain-at-break values. Finally, when no surface derivatization was applied to holocellulose and cellulose samples before defibration, the controlled preservation of residual lignin and hemicelluloses on the CNFs indicate to be crucial for the process. This simplified method of CNF preparation presents great potential for forest-based industries as a way to use forestry waste (e.g., branches, stumps, and sawdust) to produce CNFs and, consequently, diversify the product range and reach new markets.

Place, publisher, year, edition, pages
Elsevier, 2019
Keywords
Birch wood, Spruce wood, Cellulose nanofiber (CNF), Holocellulose CNF, Nanopaper, Residual cell wall components
National Category
Paper, Pulp and Fiber Technology
Identifiers
urn:nbn:se:kth:diva-238861 (URN)10.1016/j.indcrop.2018.10.052 (DOI)000452565200025 ()2-s2.0-85055735243 (Scopus ID)
Note

QC 20181120

Available from: 2018-11-13 Created: 2018-11-13 Last updated: 2019-01-04Bibliographically approved
de Carvalho, D. M., Berglund, J., Marchanda, C., Lindström, M., Vilaplana, F. & Sevastyanova, O. (2019). Improving the thermal stability of different types of xylan by acetylation. Carbohydrate Polymers, 220, 132-140
Open this publication in new window or tab >>Improving the thermal stability of different types of xylan by acetylation
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2019 (English)In: Carbohydrate Polymers, ISSN 0144-8617, E-ISSN 1879-1344, Vol. 220, p. 132-140Article in journal (Refereed) Published
Abstract [en]

The impact of various degrees of acetylation on improving the thermal stability of xylan isolated from different botanical source has been studied; methylglucuronoxylan from birch and eucalyptus, arabinoglucuronoxylan from spruce and glucuronoarabinoxylan from sugarcane bagasse and straw. The lower molecular weight of nonacetylated methylglucuronoxylan (17.7-23.7 kDa) and arabinoglucuronoxylan (16.8 kDa) meant that they were more soluble in water than glucuronoarabinoxylan (43.0-47.0 kDa). The temperature at the onset of degradation increased by 17-61 degrees C and by 75-145 degrees C for low and high acetylated xylans respectively, as a result of acetylation. A glass transition temperature in the range of 121-132 degrees C was observed for the samples non-acetylated and acetylated at low degree of acetylation (0.0-0.6). The acetylation to higher degrees (1.4-1.8) increased the glass transition temperature of the samples to 189-206 degrees C. Acetylation proved to be an efficient method for functionalization of the xylan to increase the thermal stability.

Place, publisher, year, edition, pages
ELSEVIER SCI LTD, 2019
Keywords
Acetylation, Hardwood, Molecular weight, Softwood, Sugarcane residues
National Category
Polymer Technologies
Identifiers
urn:nbn:se:kth:diva-270843 (URN)10.1016/j.carbpol.2019.05.063 (DOI)000470825500016 ()31196532 (PubMedID)
Note

QC 20200316

Available from: 2020-03-16 Created: 2020-03-16 Last updated: 2020-03-16Bibliographically approved
de Carvalho, D. M., Moser, C., Lindström, M. & Sevastyanova, O. (2019). Preparation of cellulosic samples with varied content of residual lignin and hemicelluloses: Impact on nanofibrillation process and nanopaper properties. Paper presented at National Meeting of the American-Chemical-Society (ACS), MAR 31-APR 04, 2019, Orlando, FL. Abstracts of Papers of the American Chemical Society, 257
Open this publication in new window or tab >>Preparation of cellulosic samples with varied content of residual lignin and hemicelluloses: Impact on nanofibrillation process and nanopaper properties
2019 (English)In: Abstracts of Papers of the American Chemical Society, ISSN 0065-7727, Vol. 257Article in journal, Meeting abstract (Other academic) Published
Place, publisher, year, edition, pages
AMER CHEMICAL SOC, 2019
National Category
Paper, Pulp and Fiber Technology
Identifiers
urn:nbn:se:kth:diva-257611 (URN)000478860502474 ()
Conference
National Meeting of the American-Chemical-Society (ACS), MAR 31-APR 04, 2019, Orlando, FL
Note

QC 20190918

Available from: 2019-09-18 Created: 2019-09-18 Last updated: 2019-11-06Bibliographically approved
Tagami, A., Gioia, C., Lauberts, M., Budnyak, T., Moriana, R., Lindström, M. & Sevastyanova, O. (2019). Solvent fractionation of softwood and hardwood kraft lignins for more efficient uses: Compositional, structural, thermal, antioxidant and adsorption properties. Industrial crops and products (Print), 129, 123-134
Open this publication in new window or tab >>Solvent fractionation of softwood and hardwood kraft lignins for more efficient uses: Compositional, structural, thermal, antioxidant and adsorption properties
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2019 (English)In: Industrial crops and products (Print), ISSN 0926-6690, E-ISSN 1872-633X, Vol. 129, p. 123-134Article in journal (Refereed) Published
Abstract [en]

This work summarizes the impact of solvent fractionation on the chemical structure, antioxidant activity, heating values, and thermal and adsorption properties of industrial hardwood and softwood kraft lignins. The aim of the research was to develop a simple approach for obtaining lignin fractions with tailored properties for applications in certain materials. Four common industrial solvents, namely, ethyl acetate, ethanol, methanol and acetone, in various combinations, were found to be efficient for separating spruce and eucalyptus kraft lignins into fractions with low polydispersities. The ethanol fraction of spruce and the ethyl acetate fraction of eucalyptus afforded the highest yields. Gel-permeation chromatography analysis was used to evaluate the efficiency of the chosen solvent combination for lignin fractionation. The composition and structure of the lignin material was characterized by elemental analysis, analytical pyrolysis (Py-GC/MS/FID) and P-31 NMR spectro-scopy. The thermal properties of the lignin samples were studied using thermogravimetric analysis. Proximate analysis data (ash, volatile components, organic matter and fixed carbon) was obtained through the direct measurement of weight changes in each experimental curve, and the high heating values (in MJ/kg) were calculated according to equations suggested in the literature. The adsorption properties of fractionated kraft lignins were studied using methylene blue dye. The correlations observed between molecular weight, composition and functionality and the thermal, radical scavenging and adsorption properties of the lignin fractions provides useful information for selecting the appropriate solvent combinations for specific applications of lignin raw materials (including their use as antioxidants, biofuels or sorbents in water treatment processes).

Place, publisher, year, edition, pages
ELSEVIER SCIENCE BV, 2019
Keywords
Kraft lignin, Solvent fractionation, Structural analysis, Antioxidant activity, Thermal stability, Adsorption
National Category
Polymer Technologies
Identifiers
urn:nbn:se:kth:diva-244491 (URN)10.1016/j.indcrop.2018.11.067 (DOI)000457504200015 ()2-s2.0-85057882324 (Scopus ID)
Note

QC 20190327

Available from: 2019-03-27 Created: 2019-03-27 Last updated: 2019-05-14Bibliographically approved
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ORCID iD: ORCID iD iconorcid.org/0000-0002-2900-4713

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