Pulping and bleaching potential of banana pseudo stem, banana leaf and banana peduncle

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作者
Taslima Ferdous
M. Abdul Quaiyyum
Yangcan Jin
M. Shahriar Bashar
Kazi M. Yasin Arafat
M. Sarwar Jahan
机构
[1] University of Dhaka,Department of Applied Chemistry and Chemical Engineering
[2] Nanjing Forestry University,Jiangsu Co
[3] Bangladesh Council of Scientific and Industrial Research,Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Key Lab of Pulp and Paper Science and Technology
[4] Bangladesh Council of Scientific and Industrial Research Laboratories,Institute of Fuel Research and Development
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关键词
Banana wastes pulping; α-Cellulose; Fiber length; Runkel ratio; Papermaking properties;
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摘要
The chemical, morphological and anatomical characteristics of banana pseudo stem, banana leaf (midrib) and banana peduncle were determined. Banana wastes were characterized with good amount of α-cellulose (40–45%), moderate amount of lignin (20–24%) and medium to long fiber length (1.22–1.92 mm). Alkaline nitrobenzene oxidation (ANO) showed that the main lignin unit of banana stem and leaf was p-hydroxybenzaldehyde and that of banana peduncle was syringaldehyde. The yield of ANO was very low (17–24%). Soda-anthraquinone (AQ) and formic acid/peroxyformic (FA/PFA) acid pulping processes of these banana wastes were evaluated. In soda-AQ process, pulping at 20% alkali charge, pulp yields were 30.0%, 34.55% and 39.12%, for banana stem, leaf and peduncle, respectively, with kappa number below 20. Higher pulp yield was found in FA/PFA process than soda-AQ process due to very high ash content in the samples. The banana waste pulps showed excellent papermaking properties.
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页码:893 / 904
页数:11
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