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| Articles
by
Md. Shamsul Haque |
Total Records (
4 ) for
Md. Shamsul Haque |
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Md. Shamsul Haque
,
Md. Asaduzzaman
,
Firoza Akhter
and
Zakaria Ahmed
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Isolated fungi of Aspergillus clavatus, Rhizopus sp., Zygorinchous sp., Sporotrichum sp.,
Trichoderma sp., Penicillium sp. and Curvularia sp. were tested for their retting efficacy on
green jute ribbons. In laboratory condition as well as in field condition, Sporotrichum sp.
retted green ribbons of jute (var. CVL-1) in 7 days whereas both Trichoderma sp and
Curvularia sp. retted green ribbons in 11 days. In case of retting by Sporotrichum sp., no
adverse effect on the fiber bundle strength and fiber yield was observed and according to
Pressley Index, fiber strength was found to be 10.82 Ibs/mg and fiber yield was about 2.8
Kg out of 40 Kg green ribbons. |
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Zakaria Ahmed
,
Firoza Akhter
,
M. Ashraf Hussain
,
Md. Shamsul Haque
,
M.M. Alamgir Sayeed
and
M.A. Quashem
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A pectinolytic fungus identified as Aspergillus niger was isolated from jute softening bin of a jute mill. Enzyme treated low-grade jute could be blended in higher amounts with superior quality jute without any adverse effect on the blended product. Polyester resin forms an intimate bond with jute fibres up to a maximum fibre : resin ratio (v/v) of 60:40. Significant improvement in mechanical properties of jute fibre composites was observed by incorporation of polyesteramide polyol. Hybrid laminates (10-ply) containing 8 inner plies of untreated/silane/titanate/TDI treated jute fibre sandwiched between two outer plies of glass fibre (weight content of jute : 25-27%) are made. Although there exists a good potential of jute-glass hybrid composites. Whereas, for resin with jute, the ratio maintained is 3.5-4:1. The preferred natural fibre is jute in the form of needled jute felt. An acidic xylan from 4% alkali soluble fraction of unretted jute bark (a hybrid derivative from intervarietal cross of Corchorus capsularis and capsularis blue seeded). Dioxane acidolysis lignin of jute stick was isolated. Jute seed cake, was low in protein and high in lysine, isoleucine and fibre content. Qualitative improvement of low grade jute and jute cuttings using a crude enzyme preparation from A. niger. Induced changes in the genetic architecture of some macro mutants of jute. |
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Md. Shamsul Haque
,
A. Zakaria
,
K.B. Adhir
and
A. Firoza
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Attempt was under taken to isolate, identify and characterized jute retting bacteria from the natural environment. Among all the isolate, Micrococcus sp. was found to be the most promising microbe which retted jute only within 6 days under control laboratory condition. |
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Zakaria Ahmed
,
Md. Shamsul Haque
,
Firoza Akhter
and
Mahmuda Begum
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Chemical composition of different pipeline varieties of jute (Corchorus capsularis and C. olitorius)
fibres has been studied. The promising varieties which have been taken were C-718, C-2005, C-2193, C-2035 and OM-1 and experiment was carried out to know their moisture content (%),
cellulose content (%), hemicellulose content (%), lignin content (%), ash content (%) and fat content
(%) in three different parts of plant- top, middle and bottom. Moisture content was found highest
(12.6855%) in bottom part of C-2035 variety and lowest (8.24%) in top part of C-2005 variety. In
bottom part of C-718, cellulose content was found lowest (58.24%) and highest was found in the top
part of C-2035 variety. Hemicellulose was found highest (23.73%) in top part of OM-1 and lowest
(16.39%) in middle part of C-718. In case of lignin content, it was observed that 17.98% was found
in bottom part of C-718 which seem to be highest and lowest (13.61%) was found in top part of C-2193 variety. In the top and bottom part of C-2005, ash content was found lowest (0.112%) and
highest (0.995%) respectively. Fat content was highest (2.172%) in OM-1 variety and lowest
(1.099%) in C-2193. |
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