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Abstract - Issue May 2015, 36 (3) Back
nstantaneous and historical temperature effects on a-pinene
Anatomical
and physical characterisations of some lignocellulosic residues and their
suitability for fibre production
M.A. Abdel-Aal1,2,
R.A. Nasser1,3*, P.R. Khan1 and H.A. Al-Mefarrej1
1Plant Production
Department, Food and Agriculture Sciences College, King Saud University,
Riyadh, 11451, Saudi Arabia
2Forestry and Wood
Technology Department, Horticulture Research Institute, Agricultural Research
Center, 21545, Egypt
3Forestry and Wood
Technology Department, Faculty of Agriculture (El-Shatby), Alexandria, 21545,
Egypt
*Corresponding
Author?s Email : nasser67@ksu.edu.sa
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Publication Data
Paper received:
25 September 2013
Revised received:
26 March 2014
Accepted:
04 June 2014
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Abstract
Lignocellulosic
residues cause many environmental problems; therefore, conversion of these
residues to pulp and paper production will reduce these problems in Saudi
Arabia. Residues from Phoenix dactylifera, Triticum aestivum
and Conocarpus erectus, in addition to woody materials such as
hardwood Tamarix aphylla and softwood Juniperus procera, were
evaluated using anatomical characteristics to investigate the suitability of
these residues for the pulp and paper industry. The results revealed that
lignocellulosic residues had fibre lengths similar to or longer than hardwood
fibres, but did not reach softwood fibre length because in softwood tracheids
and tracheids are longer than other fibres. Fibre from lignocellulosic
residues was similar to hardwood fibre, so lignocellulosic residues can be
used for pulp and paper production. The fibre distribution of C. erectus
prunings was similar to that of hardwood (T. aphylla), whereas
distribution of P. dactylifera was similar to that of softwood (J. procera).
Regarding wheat straw (T. aestivum), distribution of fibre was between
those of hardwood and softwood. It is expected that handsheet formed from C.
erectus and T. aestivum pulp would give a smoother paper, whereas P.
dactylifera and J. procera pulps would be high in most strength
properties than handsheet from other species because short fibres will fill
the voids in the paper sheet whereas strength properties would increase with
increasing fibre length.
Key
words
Fibre
length, Handsheet, Hardwood, Lignocellulosic residues, Softwood
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