Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Why Do Bamboo Parenchyma Cells Show Higher Nanofibrillation Efficiency than Fibers: An Investigation on Their Hierarchical Cell Wall Structure
Fujian Agriculture and Forestry University, China; National Forestry and Grassland Administration, China.
Fujian Agriculture and Forestry University, China; National Forestry and Grassland Administration, China.
Fujian Agriculture and Forestry University, China; National Forestry and Grassland Administration, China.
International Center for Bamboo and Rattan, China.
Show others and affiliations
2022 (English)In: Biomacromolecules, ISSN 1525-7797, E-ISSN 1526-4602, Vol. 23, no 10, p. 4053-4062Article in journal (Refereed) Published
Abstract [en]

The cell walls of parenchyma cells and fibers in bamboo are both highly lignified with secondary thickening. However, the former were found to have much higher nanofibrillation efficiency than fibers via both protocols of ultrasonication and high pressure homogenization. To elucidate the inherent mechanism, detailed comparisons of chemical composition, cell morphology, cell wall density, pore structures, and structural organization of cell wall polymers were performed on native and pretreated cell walls of both parenchyma cells and fibers. Chemical compositional analysis showed that fibers have much higher cellulose (49.8% to 35.5%) but lower xylan content (21.1% to 36.2%) than parenchyma, while their lignin contents were similar (24.9% vs 22.9%). Polarized FTIR further revealed clear differences in the structural organization of polymers between the two types of cells, with all the polymers of fibers being more orderly assembled than those of parenchyma cells. The compact arrangement of polymers in the fibers was also supported by the much higher cell wall density (1.52 vs 1.28 g/cm3) and lower porosity (0.007 vs 0.013 cc/g after chemical pretreatments), as compared to the parenchyma cells. The study provides evidence that the anatomical characteristics of huge cavity-wall ratio, higher cell wall porosity, and less ordered arrangement of cell wall matrix polymers (mainly lignin) in parenchyma cells contribute to their higher nanofibrillation efficiency compared to fibers.

Place, publisher, year, edition, pages
American Chemical Society , 2022. Vol. 23, no 10, p. 4053-4062
Keywords [en]
Bamboo, Cells, Chemical analysis, Cytology, Efficiency, Lignin, Pore structure, Porosity, Cell morphology, Cell wall structure, Cell walls, Chemical compositions, High pressure homogenization, Nano fibrillations, Parenchyma cells, Structural organization, Ultra-sonication, Wall density, Fibers
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:ri:diva-60411DOI: 10.1021/acs.biomac.2c00224Scopus ID: 2-s2.0-85138917910OAI: oai:DiVA.org:ri-60411DiVA, id: diva2:1704985
Note

Funding details: xjq20020; Funding details: National Natural Science Foundation of China, NSFC, 31770600, 32001381; Funding details: National Key Research and Development Program of China, NKRDPC, 2021YFD2200504; Funding text 1: This research was funded by the 14th Five-Year the National key Research and Development projects (2021YFD2200504), the National Science Foundation of China (31770600, 32001381), and the Fujian Agriculture and Forestry University Outstanding Young Scientific Research Talent Program Project (xjq20020). We would also like to thank Dr. Jasna S. Stevanic for the assistance in polarized FITR measurement as well as the Chinese Scholarship Council for the visiting scholar program.

Available from: 2022-10-20 Created: 2022-10-20 Last updated: 2023-01-03Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textScopus

Authority records

Salmén, Lennart

Search in DiVA

By author/editor
Salmén, Lennart
By organisation
Bioeconomy and Health
In the same journal
Biomacromolecules
Materials Engineering

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 18 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf