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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/13195
Title: Complete characterization of wheat straw (Triticum aestivum PBW-343 L. Emend. Fiori & PAOL.) - A renewable source of fibres for pulp and paper making
Authors: Singh S.
Dutt D.
Tyagi C.H.
Published in: BioResources
Abstract: Triticum aestivum PBW-343 is grown in most of the regions of India, and it is one of the renewable sources most suitable for papermaking. Anatomical studies illustrate that vascular bundles near the periphery contain a strong sheath of sclerenchyma cells, which constitutes about 80% of the fibers. The total fibers in wheat straw are about 39.20%, and parenchyma and epidermal cells account for 32.10, and 23.56%, respectively, of the total cells. The dimensions of wheat straw fibers are: average fiber length 1.18 mm, fiber width 13.60 μm, lumen diameter 5.68 μm, and cell wall thickness 3.96 μm. The dimensions of non-fibrous cells are: parenchyma 445×124 μm, vessels 96x57 μm, and epidermal cells 390×38 μm, which lie between the corresponding values for rice straw, and bagasse. Flexibility coefficients and Runkel ratio of wheat straw fires are quite comparable to bamboo. The low lignin contents of wheat straw reflect that it requires mild cooking conditions; however, hemicelluloses are on higher side. Addition of AQ under optimum soda cooking conditions improves pulp yield by 0.75%, and lowers kappa number by 26.1%. Optimum strength properties are obtained at 45±1 oSR except tear index, which declines with increased refining. The fine contents are much higher, and relatively comparable to Eucalyptus tereticornis in terms of curl index and kinks per mm.
Citation: BioResources (2011), 6(1): 154-177
URI: http://repository.iitr.ac.in/handle/123456789/13195
Issue Date: 2011
Keywords: Anatomy
Morphology
Paper properties
Proximate chemical analysis
Scanning electron microscopy
Soda pulping
Triticum aestivumPBW-343 (Wheat straw)
ISSN: 19302126
Author Scopus IDs: 7406402372
7005982560
6602705260
Author Affiliations: Singh, S., Department of Paper Technology, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur, 247001, India
Dutt, D., Department of Paper Technology, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur, 247001, India
Tyagi, C.H., Department of Paper Technology, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur, 247001, India
Corresponding Author: Dutt, D.; Department of Paper Technology, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur, 247001, India; email: dharm_dutt@yahoo.com
Appears in Collections:Journal Publications [PT]

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