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Stevanic Srndovic, JasnaORCID iD iconorcid.org/0000-0002-1341-0266
Publications (10 of 16) Show all publications
Odeberg Glasenapp, A., Alfthan, J., Salmen, L., Stevanic Srndovic, J., Björk, E., Holmqvist, C., . . . Berthold, J. (2019). Next level of corrugated board research. In: 29th IAPRI Symposium on packaging, 2019: Serving society innovative perspectives on packaging. Paper presented at 29th IAPRI Symposium on packaging, 11-14 June, 2019, Enschede, The Netherlands.
Open this publication in new window or tab >>Next level of corrugated board research
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2019 (English)In: 29th IAPRI Symposium on packaging, 2019: Serving society innovative perspectives on packaging, 2019Conference paper, Published paper (Other academic)
Abstract [en]

 For the first time in the Bioeconomy research program at RISE, corrugatedboard has an own research area. Research is building around the main driving forcesin the corrugated board value chain like e-commerce, improved box performance anddigital printing. The main weakness of corrugated board, its moisture sensitivity, isalso addressed.These main driving forces and weaknesses of corrugated board are mirrored in thethemes of this large research program area:Fibre sorption and deformation mechanismsFundamental knowledge on the mechanisms behind moisture sorption and deformation on fibre level is developed to increase moisture and creep resistance throughmodification of paper materials. State of the art methods for characterization ofthe fibre ultra- and nano-structure such as Fourier transform infra-red spectroscopy(FTIR), small angle X-ray scattering (SAXS), and wide angle X-ray scattering (WAXS)give new insights on mechanisms and clarify effects of moisture as well as chemicalmodifications.Papermaking for improved base sheetsConcepts that are explored are fibre-based strength additives produced with novelrefining techniques, and modified ZD-profiles in the sheet for better mechanical properties.Box mechanicsMechanical performance of structures such as corrugated board boxes can be predicted through physically based mathematical modelling by taking the behaviour ofthe constituent materials as well as the geometry into account. Appropriate materialmodels for the corrugated board are identified and finite element models for simulation of corrugated board packaging performance are developed.Tool for inkjet printability on corrugatedThere is a genuine need for improved inkjet printability on corrugated materials thanksto rapid development in e-commerce as well as digitalization along the corrugatedvalue chain. Effective measurement methods and knowledge around ink-substrateinteractions are developed to enable board producers and converters to have effective product development and predictable printability on not only liners but also oncorrugated materials.

Keywords
corrugated board, moisture, box mechanics, inkjet printing, fibre sorption
National Category
Paper, Pulp and Fiber Technology
Identifiers
urn:nbn:se:ri:diva-39737 (URN)
Conference
29th IAPRI Symposium on packaging, 11-14 June, 2019, Enschede, The Netherlands
Available from: 2019-08-14 Created: 2019-08-14 Last updated: 2019-08-15Bibliographically approved
Peng, H., Salmen, L., Stevanic Srndovic, J. & Lu, J. (2019). Structural organization of the cell wall polymers in compression wood as revealed by FTIR microspectroscopy. Planta, 250(1), 163-171
Open this publication in new window or tab >>Structural organization of the cell wall polymers in compression wood as revealed by FTIR microspectroscopy
2019 (English)In: Planta, ISSN 0032-0935, E-ISSN 1432-2048, Vol. 250, no 1, p. 163-171Article in journal (Refereed) Published
Abstract [en]

Glucomannan was more strongly oriented, in line with the orientation of cellulose, than the xylan in both compression wood and normal wood of Chinese fir. Lignin in compression wood was somewhat more oriented in the direction of the cellulose microfibrils than in normal wood.

The structural organization in compression wood (CW) is quite different from that in normal wood (NW). To shed more light on the structural organization of the polymers in plant cell walls, Fourier Transform Infrared (FTIR) microscopy in transmission mode has been used to compare the S2-dominated mean orientation of wood polymers in CW with that in NW from Chinese fir (Cunninghamia lanceolata). Polarized FTIR measurements revealed that in both CW and NW samples, glucomannan and xylan showed a parallel orientation with respect to the cellulose microfibrils. In both wood samples, the glucomannan showed a much greater degree of orientation than the xylan, indicating that the glucomannan has established a stronger interaction with cellulose than xylan. For the lignin, the absorption peak also indicated an orientation along the direction of the cellulose microfibrils, but this orientation was more pronounced in CW than in NW, indicating that the lignin is affected by the orientation of the cellulose microfibrils more strongly in CW than it is in NW.

Keywords
FTIR microscopy, softwood, compression wood, cellulose, glucomannan, xylan, lignin, orientation, Cunninghamia, cellulose microfibril
National Category
Wood Science
Identifiers
urn:nbn:se:ri:diva-38327 (URN)10.1007%2Fs00425-019-03158-7 (DOI)
Available from: 2019-04-09 Created: 2019-04-09 Last updated: 2019-07-01Bibliographically approved
Salmen, L. & Stevanic Srndovic, J. (2018). Effect of drying conditions on cellulose microfibril aggregation and "€œhornification". Cellulose (London), 25(11), 6333-6344
Open this publication in new window or tab >>Effect of drying conditions on cellulose microfibril aggregation and "€œhornification"
2018 (English)In: Cellulose (London), ISSN 0969-0239, E-ISSN 1572-882X, Vol. 25, no 11, p. 6333-6344Article in journal (Refereed) Published
Abstract [en]

Drying of chemical pulps results in a decreased swelling of the fibres, leading to lower density and strength properties of paper sheets. To investigate how variation of pulp pH, drying process temperature, and final moisture content affect this phenomenon, structural studies were performed on a cellulose-rich pulp. Interrupting the drying at moisture contents of around 20%, using drying temperatures of 80 °C and 140 °C, resulted in a more severe degree of hornification than if the pulp was completely dried at the same temperatures. This increased loss of swelling was accompanied by increased cellulose microfibril aggregation. No change of the cellulose microfibril size or of the cellulose crystallinity, as determined by NMR, could be seen. Further, the accessibility of the cellulose microfibril surfaces, including surfaces between microfibrils, was unaffected by the drying. Thus, hornification should not primarily be related to a reduction of accessible cellulosic surfaces.

Place, publisher, year, edition, pages
Springer Netherlands, 2018
Keywords
Cellulose derivatives, Deuterium, Drying, Moisture, Moisture determination, Nuclear magnetic resonance, Temperature, Cellulose crystallinity, Drying condition, Drying process, Drying temperature, Final moisture content, FTIR, Strength property, Structural studies, Cellulose
National Category
Paper, Pulp and Fiber Technology
Identifiers
urn:nbn:se:ri:diva-35313 (URN)10.1007/s10570-018-2039-1 (DOI)2-s2.0-85053563624 (Scopus ID)
Available from: 2018-10-15 Created: 2018-10-15 Last updated: 2018-12-12Bibliographically approved
Guo, J., Zhou, H., Stevanic Srndovic, J., Dong, M., Yu, M., Salmen, L. & Yin, Y. (2018). Effects of ageing on the cell wall and its hygroscopicity of wood in ancient timber construction. Wood Science and Technology, 52(1), 131-147
Open this publication in new window or tab >>Effects of ageing on the cell wall and its hygroscopicity of wood in ancient timber construction
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2018 (English)In: Wood Science and Technology, ISSN 0043-7719, E-ISSN 1432-5225, Vol. 52, no 1, p. 131-147Article in journal (Refereed) Published
Abstract [en]

An important traditional load bearing member in oriental ancient timber structure buildings, i.e. Huagong (flower arm), was selected to explore the alterations in cell wall components and hygroscopic properties of wood during long time ageing. This archaeological poplar (Populus spp.) wood with cal. BP 690: BP 790 was studied from the wood surface and inwards by means of imaging FTIR spectroscopy, X-ray diffraction and dynamic vapour sorption. The deterioration of the archaeological wood mainly displayed a depolymerization of glucomannan and lignin as well as a hydrolysis of the glucuronic acid of xylan and of the aromatic C–O groups in the condensed lignins or lignin–carbohydrate complexes. Furthermore, the degradation promoted the rearrangement of the cellulose molecules in adjacent microfibrils. The cellulose crystallites in the archaeological wood were therefore packed more tightly and had larger diameter. The structural alterations of wood cell wall components and a decrease in crystallinity contributed to an increase in the number of moisture bonding sites and led to an increase in both the equilibrium moisture content of the archaeological wood in the entire RH range as well as an increase in hysteresis.

Keywords
Cellulose, Forestry, Fourier transform infrared spectroscopy, Glucose, Lignin, Moisture, Timber, Walls (structural partitions), Wooden construction, X ray diffraction, Ancient timber structures, Archaeological woods, Cell-wall components, Cellulose crystallites, Dynamic vapour sorptions, Equilibrium moisture contents, Hygroscopic properties, Structural alterations, Wood, Aging, Cell Walls, Construction, Crystallinity, Hysteresis, Moisture Content, Populus, Xylans
National Category
Natural Sciences
Identifiers
urn:nbn:se:ri:diva-36583 (URN)10.1007/s00226-017-0956-z (DOI)2-s2.0-85029418687 (Scopus ID)
Note

Funding details: State Administration of Foreign Experts Affairs, SAFEA, P163036008; Funding details: University of Tokyo; Funding details: National Natural Science Foundation of China, NSFC, 31600450;

Available from: 2018-12-06 Created: 2018-12-06 Last updated: 2018-12-06Bibliographically approved
Naderi, A., Larsson, P. T., Stevanic Srndovic, J., Lindström, T. & Erlandsson, J. (2017). Effect of the size of the charged group on the properties of alkoxylated NFCs. Cellulose (London), 24(3), 1307-1317
Open this publication in new window or tab >>Effect of the size of the charged group on the properties of alkoxylated NFCs
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2017 (English)In: Cellulose (London), ISSN 0969-0239, E-ISSN 1572-882X, Vol. 24, no 3, p. 1307-1317Article in journal (Refereed) Published
Abstract [en]

The impact of the size of the charged group on the properties of alkoxylated NFC was studied by two chloroalkyl acid reagents. It was found that the employment of the larger 2-chloropropionic acid reagent leads to improved properties, e.g. higher fraction of nano-sized materials, and significantly better redispersion as compared to when the smaller monochloroacetic acid was employed. The differences in the impacts of the different reagents were hypothesized to be due to a more efficient disruption of the cohesion between the nanofibrils when a larger charged group was employed. 

Keywords
Nanofibrillated cellulose, NFC, Alkoxylation, Redispersion, Degree of fibrillation, Barrier properties, NMR
National Category
Paper, Pulp and Fiber Technology Nano Technology
Identifiers
urn:nbn:se:ri:diva-28193 (URN)10.1007/s10570-017-1190-4 (DOI)2-s2.0-85008622734 (Scopus ID)
Available from: 2017-03-15 Created: 2017-03-15 Last updated: 2018-08-22Bibliographically approved
Aldaeus, F., Olsson, A.-M. & Stevanic Srndovic, J. (2017). Miniaturized determination of ash content in kraft lignin samples using oxidative thermogravimetric analysis. Nordic Pulp & Paper Research Journal, 32(2), 280-282
Open this publication in new window or tab >>Miniaturized determination of ash content in kraft lignin samples using oxidative thermogravimetric analysis
2017 (English)In: Nordic Pulp & Paper Research Journal, ISSN 0283-2631, E-ISSN 2000-0669, Vol. 32, no 2, p. 280-282Article in journal (Refereed) Published
Abstract [en]

A study has been made of several aspects of determination of ash content in kraft lignin samples using thermogravimetric analysis (TGA). Three different methods were used; with the main differences between the methods being that two have a temperature hold at 250 deg C to remove volatiles and that the three methods use different maximum temperatures, namely 525, 550 and 575 deg C, respectively. The three kraft lignins used were produced using the LignoBoost lignin isolation process. It has been demonstrated that the results obtained by the different temperature programmes showed no significant difference. The results were comparable with those from using oven ignition. Moreover, the limit of quantification was several orders of magnitude lower than when using oven ignition. It has been recommended that if TGA is used for determination of ash content, a temperature programme from a standard method should be used, which should be mentioned together with the results. The temperature programme in method one (corresponding to ISO 1762) was the shortest and the preferable method. A well as requiring less labour due to fewer movements in the analytical protocol, the TGA methods enabled a high sample throughput due to autosampling possibilities.

Keywords
analytical method, ash content, biorefinery, kraft lignin, thermogravimetry
National Category
Paper, Pulp and Fiber Technology
Identifiers
urn:nbn:se:ri:diva-32955 (URN)10.3183/NPPRJ-2017-32-02-p280-282 (DOI)2-s2.0-85053880988 (Scopus ID)
Available from: 2018-01-02 Created: 2018-01-02 Last updated: 2019-01-10Bibliographically approved
Salmen, L., Stevanic Srndovic, J. & Olsson, A.-M. (2016). Contribution of lignin to the strength properties in wood fibres studied by dynamic FTIR spectroscopy and dynamic mechanical analysis (DMA). Holzforschung, 70(12), 1155-1163
Open this publication in new window or tab >>Contribution of lignin to the strength properties in wood fibres studied by dynamic FTIR spectroscopy and dynamic mechanical analysis (DMA)
2016 (English)In: Holzforschung, ISSN 0018-3830, E-ISSN 1437-434X, Vol. 70, no 12, p. 1155-1163Article in journal (Refereed) Published
Abstract [en]

A deeper insight into the molecular interactions in the highly intermixed structure of the wood cell wall, from the point of view of both basic and applied science, is necessary. In particular, the role of the different matrix materials within the cell wall needs to be better understood, especially concerning how lignin contributes to the mechanical properties. In the present paper, the mechanical properties of spruce wood have been studied on a molecular scale by means of dynamic Fourier transform infrared (FTIR) spectroscopy. To this purpose, native spruce wood was subjected to chemical changes by impregnation and a mild pre-cooking with white liquor with a composition usual for kraft pulping. For comparison, lignin-rich primary cell wall material was also isolated by means of thermomechanical pulp (TMP) refining. Dynamic FTIR spectroscopy revealed that lignin took part in the stress transfer in all investigated samples. This finding is in contrast to literature data. A strong indirect coupling between lignin and cellulose was seen in the primary cell wall (P) material. In case of native wood, the lignin signal was much weaker and also indicated an indirect coupling to cellulose. In the case of pre-cooked wood samples (submitted to mild pulping), the interactions were modified so that the molecular straining of lignin was stronger and more directly related to that of cellulose. In other words, in these samples, lignin played a more active role in the stress transfer as compared to native wood. These findings were supported by a narrower lignin-softening region as measured by dynamic mechanical analysis (DMA). The interpretation is plausible in terms of the superior stiffness seen for high-yield pulps of a similar yield as the studied pre-cooked wood samples.

Keywords
2D-FTIR, dynamic FTIR, dynamic mechanical analysis (DMA), lignin, mechanical properties, polymer interaction, primary cell wall material, pulping, secondary cell wall, softening, structure, wood
National Category
Paper, Pulp and Fiber Technology
Identifiers
urn:nbn:se:ri:diva-27566 (URN)10.1515/hf-2016-0050 (DOI)2-s2.0-84998704967 (Scopus ID)
Available from: 2016-12-15 Created: 2016-12-15 Last updated: 2019-06-13Bibliographically approved
Aldaeus, F., Larsson, K., Stevanic Srndovic, J., Kubat, M., Karlström, K., Norberg, L., . . . Larsson, P. T. (2016). The supramolecular structure of cellulose-rich wood and wheat straw pulps can be a determinative factor for enzymatic hydrolysability. In: The 7th Workshop on cellulose, regenerated cellulose and cellulose derivatives: . Paper presented at 7th Workshop on cellulose, regenerated cellulose and cellulose derivatives, November 15-16, 2016, Örnsköldsvik, Sweden (pp. 39-39). , Article ID 11.
Open this publication in new window or tab >>The supramolecular structure of cellulose-rich wood and wheat straw pulps can be a determinative factor for enzymatic hydrolysability
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2016 (English)In: The 7th Workshop on cellulose, regenerated cellulose and cellulose derivatives, 2016, p. 39-39, article id 11Conference paper, Oral presentation with published abstract (Other academic)
Abstract [en]

Conversion of biomass to biofuels and other products is a research area that is currently attracting a great amount of interest, particularly because such production may be envisaged as a key part of any bio-based economy. Lignocellulosic biomass is abundant and sustainable, and can therefore potentially support large-scale production of biofuel as an alternative to petroleum-based fuel.

The enzymatic hydrolysability of three industrial pulps, five lab made pulps, and one microcrystalline cellulose powder was assessed using commercial cellulolytic enzymes. To gain insight into the factors that influence the hydrolysability, a thorough characterization of the samples was done, including their chemical properties (cellulose content, hemicellulose content, lignin content, and kappa number), their macromolecular properties (peak molar mass, number-average molar mass, weight-average molar mass, polydispersity, and limiting viscosity) and their supramolecular properties (fibre saturation point, specific surface area, average pore size, and crystallinity). The hydrolysability was assessed by determination of initial conversion rate and final conversion yield, with conversion yield defined as the amount of glucose in solution per unit of glucose in the substrate. Multivariate data analysis revealed that for the investigated samples the conversion of cellulose to glucose was mainly dependent on the supramolecular properties, such as specific surface area and average pore size. The molar mass distribution, the crystallinity, and the lignin content of the pulps had no significant effect on the hydrolysability of the investigated samples.

In addition, experiments were carried out aiming at identifying suitable conditions for pre-treatment of wheat straw, for the purpose of making cellulose rich pulps with improved enzymatic reactivity. Two sets of conditions for pre-treatment of wheat straw were identified; a combination of low temperature alkaline washing and acid pre-hydrolysis, or high temperature acid pre-hydrolysis. Both bleached wheat straw pulps showed similar enzymatic reactivity. However, the enzymatic reactivity of both bleached wheat straw pulps was found to be significantly less than what has been achieved for wood pulps. A probable explanation for the low enzymatic reactivity of the bleached wheat straw pulp can be the small pore size, limiting the access for enzymes to the cellulose surfaces in the fibre wall interior.Text, figures and tables in an extended abstract (< 4 pages with title and references).

Keywords
cellulose, wood, pulp, wheat straw, enzymatic hydrolysis
National Category
Paper, Pulp and Fiber Technology
Identifiers
urn:nbn:se:ri:diva-29118 (URN)
Conference
7th Workshop on cellulose, regenerated cellulose and cellulose derivatives, November 15-16, 2016, Örnsköldsvik, Sweden
Available from: 2017-03-14 Created: 2017-03-14 Last updated: 2019-06-24Bibliographically approved
Coseri, S., Biliuta, G., Zemlijic, L. F., Stevanic Srndovic, J., Larsson, P. T., Strnad, S., . . . Lindström, T. (2015). Correction: One-shot carboxylation of microcrystalline cellulose in the presence of nitroxyl radicals and sodium periodate. RSC Advances, 5(117), 96927
Open this publication in new window or tab >>Correction: One-shot carboxylation of microcrystalline cellulose in the presence of nitroxyl radicals and sodium periodate
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2015 (English)In: RSC Advances, ISSN 2046-2069, E-ISSN 2046-2069, Vol. 5, no 117, p. 96927-Article in journal (Refereed) Published
Abstract [en]

Correction for ‘One-shot carboxylation of microcrystalline cellulose in the presence of nitroxyl radicals and sodium periodate’ by Sergiu Coseri et al.RSC Adv., 2015, 5, 85889–85897.

The authors regret that the images presented for Fig. 1 and 3 in the original article present incorrect carbohydrate structures. The amended versions of these images, in which the 3-position hydroxyl groups are equatorial rather than axial, are presented below.

National Category
Nano Technology
Identifiers
urn:nbn:se:ri:diva-747 (URN)10.1039/c5ra90100f (DOI)2-s2.0-84946962483 (Scopus ID)
Available from: 2016-09-14 Created: 2016-08-03 Last updated: 2019-07-04Bibliographically approved
Aldaeus, F., Olsson, A.-M. & Stevanic Srndovic, J. (2015). Miniaturized determination of ash content in kraft lignin samples using thermogravimetric analysis. In: 18th International Symposium on Wood, Fiber and Pulping Chemistry, September 9-11, 2015, Vienna: . Paper presented at 18th International Symposium on Wood, Fiber and Pulping Chemistry, September 9-11, 2015, Vienna (pp. 352-354).
Open this publication in new window or tab >>Miniaturized determination of ash content in kraft lignin samples using thermogravimetric analysis
2015 (English)In: 18th International Symposium on Wood, Fiber and Pulping Chemistry, September 9-11, 2015, Vienna, 2015, p. 352-354Conference paper, Published paper (Other academic)
Abstract [en]

Thermogravimetric analysis (TGA) in oxidative conditions is a promising alternative to ignition in oven for the determination of inorganic residue, commonly referred to as ash. It is here shown that TGA can be used with temperature programs resembling those in standardized methods for oven ignition, and obtainequivalent results even though the sample amount is several orders of magnitude lower. The precision and limit of quantification of TGA is also discussed.

Keywords
ash, kraft lignin, thermogravimetry, analysis
National Category
Paper, Pulp and Fiber Technology
Identifiers
urn:nbn:se:ri:diva-29133 (URN)
Conference
18th International Symposium on Wood, Fiber and Pulping Chemistry, September 9-11, 2015, Vienna
Available from: 2017-03-20 Created: 2017-03-20 Last updated: 2018-08-13Bibliographically approved
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0002-1341-0266

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