Cellulose elementary fibril orientation in the spruce S1-2 transition layer

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Cellulose elementary fibril orientation in the spruce S1-2 transition layer. / Reza, Mehedi; Bertinetto, Carlo; Kesari, Kavindra Kumar; Engelhardt, Peter; Ruokolainen, Janne; Vuorinen, Tapani.

julkaisussa: Scientific Reports, Vuosikerta 9, Nro 1, 3869, 07.03.2019, s. 1-7.

Tutkimustuotos: Lehtiartikkelivertaisarvioitu

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Reza, Mehedi ; Bertinetto, Carlo ; Kesari, Kavindra Kumar ; Engelhardt, Peter ; Ruokolainen, Janne ; Vuorinen, Tapani. / Cellulose elementary fibril orientation in the spruce S1-2 transition layer. Julkaisussa: Scientific Reports. 2019 ; Vuosikerta 9, Nro 1. Sivut 1-7.

Bibtex - Lataa

@article{d1d42999c9d94dc0a0c0f5a91083f8ec,
title = "Cellulose elementary fibril orientation in the spruce S1-2 transition layer",
abstract = "The tight organization of major wood cell wall polymers limits the swellability, solubility and reactivity of cellulose fibers during the production of regenerated textile fibers, nanocellulose, bioethanol, and many other value-added products. However, the ultrastructural assembly of cellulose elementary fibrils (EF) and matrix materials in one of the outer layers, i.e. S 1-2 transition layer of wood cell wall, is far from being understood. Here, single-axis electron tomography on ultrathin spruce sections was applied to observe the three-dimensional (3D) structure of the S 1-2 layer. The nanoscale geometries of the EFs were further quantitatively modeled through mathematical fitting of the tomographic subvolumes by suitable parametric space curves. The results showed that crisscross, bundled and parallel EF organizations are all present in this layer; the former two exhibit a denser structure. Several quantitative measures such as distances and angles were obtained for the analyzed structures. The result obtained in this study suggests that the S 1-2 transition layer differs in structure than the principal cell wall layers. The structural differences and its possible role in wood cell wall have been discussed. These results will enhance our understanding of the swellability, accessibility and solubility of woody biomass for its conversion into the aforementioned value-added products.",
keywords = "CELL-WALL, ELECTRON TOMOGRAPHY, FE-SEM, WOOD, APPLICABILITY, VISUALIZATION, MICROFIBRILS, ORGANIZATION, AGGREGATION, BIOMASS",
author = "Mehedi Reza and Carlo Bertinetto and Kesari, {Kavindra Kumar} and Peter Engelhardt and Janne Ruokolainen and Tapani Vuorinen",
year = "2019",
month = "3",
day = "7",
doi = "10.1038/s41598-019-40303-4",
language = "English",
volume = "9",
pages = "1--7",
journal = "Scientific Reports",
issn = "2045-2322",
number = "1",

}

RIS - Lataa

TY - JOUR

T1 - Cellulose elementary fibril orientation in the spruce S1-2 transition layer

AU - Reza, Mehedi

AU - Bertinetto, Carlo

AU - Kesari, Kavindra Kumar

AU - Engelhardt, Peter

AU - Ruokolainen, Janne

AU - Vuorinen, Tapani

PY - 2019/3/7

Y1 - 2019/3/7

N2 - The tight organization of major wood cell wall polymers limits the swellability, solubility and reactivity of cellulose fibers during the production of regenerated textile fibers, nanocellulose, bioethanol, and many other value-added products. However, the ultrastructural assembly of cellulose elementary fibrils (EF) and matrix materials in one of the outer layers, i.e. S 1-2 transition layer of wood cell wall, is far from being understood. Here, single-axis electron tomography on ultrathin spruce sections was applied to observe the three-dimensional (3D) structure of the S 1-2 layer. The nanoscale geometries of the EFs were further quantitatively modeled through mathematical fitting of the tomographic subvolumes by suitable parametric space curves. The results showed that crisscross, bundled and parallel EF organizations are all present in this layer; the former two exhibit a denser structure. Several quantitative measures such as distances and angles were obtained for the analyzed structures. The result obtained in this study suggests that the S 1-2 transition layer differs in structure than the principal cell wall layers. The structural differences and its possible role in wood cell wall have been discussed. These results will enhance our understanding of the swellability, accessibility and solubility of woody biomass for its conversion into the aforementioned value-added products.

AB - The tight organization of major wood cell wall polymers limits the swellability, solubility and reactivity of cellulose fibers during the production of regenerated textile fibers, nanocellulose, bioethanol, and many other value-added products. However, the ultrastructural assembly of cellulose elementary fibrils (EF) and matrix materials in one of the outer layers, i.e. S 1-2 transition layer of wood cell wall, is far from being understood. Here, single-axis electron tomography on ultrathin spruce sections was applied to observe the three-dimensional (3D) structure of the S 1-2 layer. The nanoscale geometries of the EFs were further quantitatively modeled through mathematical fitting of the tomographic subvolumes by suitable parametric space curves. The results showed that crisscross, bundled and parallel EF organizations are all present in this layer; the former two exhibit a denser structure. Several quantitative measures such as distances and angles were obtained for the analyzed structures. The result obtained in this study suggests that the S 1-2 transition layer differs in structure than the principal cell wall layers. The structural differences and its possible role in wood cell wall have been discussed. These results will enhance our understanding of the swellability, accessibility and solubility of woody biomass for its conversion into the aforementioned value-added products.

KW - CELL-WALL

KW - ELECTRON TOMOGRAPHY

KW - FE-SEM

KW - WOOD

KW - APPLICABILITY

KW - VISUALIZATION

KW - MICROFIBRILS

KW - ORGANIZATION

KW - AGGREGATION

KW - BIOMASS

UR - http://www.scopus.com/inward/record.url?scp=85062609813&partnerID=8YFLogxK

U2 - 10.1038/s41598-019-40303-4

DO - 10.1038/s41598-019-40303-4

M3 - Article

VL - 9

SP - 1

EP - 7

JO - Scientific Reports

JF - Scientific Reports

SN - 2045-2322

IS - 1

M1 - 3869

ER -

ID: 32620154