Jonathan Berg
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Jonathan Berg has a total of 15 co-authors. Here are the top co-authors by number of shared publications:
- Atte Mikkelson
VTT Technical Research Center of Finland Ltd. Espoo 02150 Finland
1 shared publication - Chamseddine Guizani
Department of Bioproducts and Biosystems, Aalto University, Espoo, Finland
1 shared publication Fanni Hakanen
1 shared publication- Hanna Hörhammer
Biofuels and Bioproducts Laboratory, School of Environmental and Forest Sciences, University of Washington, Box 352100, Seattle, WA 98195-2100, USA
1 shared publication Hanne Wikberg
Bio2X Fortum/Chempolis Oulu Finland
1 shared publication- Marc Borrega
VTT Technical Research Centre of Finland, Espoo, Finland
1 shared publication
Latest Publications
- Open Access
- 25 June 2026
- Published by Wiley in Chemistry–Methods
- Vol. 6 (7)
In Situ Characterization of Lignin Precipitation by Synchrotron Small‐Angle X‐Ray Scattering
Lignin is an underutilized industrial byproduct with strong potential for sustainable applications. In organosolv pulping, lignin is dissolved into the spent liquor and can be recovered by antisolvent precipitation to form micro‐ and nanoscale particles. However, the relationship between mixing conditions and structural properties of the lignin particles remains poorly understood, limiting the controlled production of high‐value lignin products. By studying this precipitation process in situ using synchrotron X‐rays, we obtain information about the nanoscale structure of the particles and their formation. In the small‐angle X‐ray scattering experiment, structural units consistent in scale with lignin subunits reported in previous literature were initially observed. Later in the process, the precipitated lignin consisted of larger structural units in the size scale of 60–120 nm, which aggregated to form yet larger structures. An upper time limit of 1 second is obtained for this process. The aggregation and the relevant size scale is verified by scanning electron microscopy. Understanding the hierarchical structure formation in lignin precipitation promotes exploitation of lignin biomass at industrial scale.
- 25 June 2026
- Published by Wiley in Chemistry–Methods
- Vol. 6 (7)
Open AccessIn Situ Characterization of Lignin Precipitation by Synchrotron Small‐Angle X‐Ray Scattering
Lignin is an underutilized industrial byproduct with strong potential for sustainable applications. In organosolv pulping, lignin is dissolved into the spent liquor and can be recovered by antisolvent precipitation to form micro‐ and nanoscale particles. However, the relationship between mixing conditions and structural properties of the lignin particles remains poorly understood, limiting the controlled production of high‐value lignin products. By studying this precipitation process in situ using synchrotron X‐rays, we obtain information about the nanoscale structure of the particles and their formation. In the small‐angle X‐ray scattering experiment, structural units consistent in scale with lignin subunits reported in previous literature were initially observed. Later in the process, the precipitated lignin consisted of larger structural units in the size scale of 60–120 nm, which aggregated to form yet larger structures. An upper time limit of 1 second is obtained for this process. The aggregation and the relevant size scale is verified by scanning electron microscopy. Understanding the hierarchical structure formation in lignin precipitation promotes exploitation of lignin biomass at industrial scale.