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The Isolation and Characterization of the Lignins of Jute (Corchorus capsularis)

The Isolation and Characterization of the Lignins of Jute (Corchorus capsularis) Introduction Jute fiber, an important commercial bast fiber of Bangladesh, India, and certain other countries, is produced mainly from two plant species, Corchorus capsularis or C. olitorius (Tiliaceae). Since little information is available concerning the lignins of jute, the present work has been carried out. Characterizations of C. capsularis are now reported. Jute, as described by Sastri (1950), is a herbaceous annual plant with straight slender stems 2--3 meters tall. It is seeded around March and the stalks are usually harvested between June and September. The fibers are secured by "retting", i.e. by steeping the stems in water for some five to twenty days. By this means disintegration of the soft tissues in which the fibers are imbedded takes place. The fiber bundles become loosened from the central woody "stick" or xylem. Ratting-results from the combined action of water and microorganisms and causes breakdown,%in sequence, of the cambium, thin walled ray cells and soft phloem tissue and finally the cortex. The loosened fibrous assembly is pulled away by hand from the central stick tissue and amounts to about 4.5--7.5% of the weight of the whole (non-dried) plant. More specifically, jute fibers or "reeds", come from the bast or http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Holzforschung - International Journal of the Biology, Chemistry, Physics and Technology of Wood de Gruyter

The Isolation and Characterization of the Lignins of Jute (Corchorus capsularis)

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References (36)

Publisher
de Gruyter
Copyright
Copyright © 2009 Walter de Gruyter
ISSN
0018-3830
eISSN
1437-434X
DOI
10.1515/hfsg.1993.47.2.123
Publisher site
See Article on Publisher Site

Abstract

Introduction Jute fiber, an important commercial bast fiber of Bangladesh, India, and certain other countries, is produced mainly from two plant species, Corchorus capsularis or C. olitorius (Tiliaceae). Since little information is available concerning the lignins of jute, the present work has been carried out. Characterizations of C. capsularis are now reported. Jute, as described by Sastri (1950), is a herbaceous annual plant with straight slender stems 2--3 meters tall. It is seeded around March and the stalks are usually harvested between June and September. The fibers are secured by "retting", i.e. by steeping the stems in water for some five to twenty days. By this means disintegration of the soft tissues in which the fibers are imbedded takes place. The fiber bundles become loosened from the central woody "stick" or xylem. Ratting-results from the combined action of water and microorganisms and causes breakdown,%in sequence, of the cambium, thin walled ray cells and soft phloem tissue and finally the cortex. The loosened fibrous assembly is pulled away by hand from the central stick tissue and amounts to about 4.5--7.5% of the weight of the whole (non-dried) plant. More specifically, jute fibers or "reeds", come from the bast or

Journal

Holzforschung - International Journal of the Biology, Chemistry, Physics and Technology of Woodde Gruyter

Published: Jan 1, 1993

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