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Chemical functional groups of extractives, cellulose and lignin extracted from native Leucaena leucocephala bark

Bark from trees is considered a worthless raw material. However, this resource could be economically benificial if utilized efficiently due to its rich chemical compounds. In this study, an ethanol toluene-soluble extractive, alpha-cellulose and lignin obtained from Leucaena leucocephala bark wer...

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Main Authors: Rafdah Md Salim, Jahimin Asik, Mohd Sani Sarjadi
Format: Article
Language:English
English
Published: Springerlink 2021
Subjects:
QK1-989 Botany
QL461-599.82 Insects
Online Access:https://eprints.ums.edu.my/id/eprint/36350/1/MdSalim2021_Article_ChemicalFunctionalGroups.pdf
https://eprints.ums.edu.my/id/eprint/36350/3/FULL%20TEXT.pdf
https://eprints.ums.edu.my/id/eprint/36350/
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spelling my.ums.eprints.363502023-08-08T07:45:23Z https://eprints.ums.edu.my/id/eprint/36350/ Chemical functional groups of extractives, cellulose and lignin extracted from native Leucaena leucocephala bark Rafdah Md Salim Jahimin Asik Mohd Sani Sarjadi QK1-989 Botany QL461-599.82 Insects Bark from trees is considered a worthless raw material. However, this resource could be economically benificial if utilized efficiently due to its rich chemical compounds. In this study, an ethanol toluene-soluble extractive, alpha-cellulose and lignin obtained from Leucaena leucocephala bark were characterized to determine their chemical functional groups. Based on FTIR spectral analysis, the results indicated that the bands of the functional groups of the extractive from the original bark remain unchanged; however, the absorbance intensity was found to be weaker in the group frequency and fingerprint regions. Removal of extractive, pectin, hemicellulose and lignin from the bark indirectly increased the strong absorbance intensity of cellulose. Broad peaks of OH stretching found in all spectra were assigned to the presence of phenolic OH and aliphatic structures for extractive and aromatic structures of lignin. It was revealed that aromatic functional groups were mainly found in the extractive, while water, carbonyl and ether were the dominant groups in cellulose, and methyl, methylene, carbonyl and carboxyl groups were enriched in lignin. Springerlink 2021-01 Article NonPeerReviewed text en https://eprints.ums.edu.my/id/eprint/36350/1/MdSalim2021_Article_ChemicalFunctionalGroups.pdf text en https://eprints.ums.edu.my/id/eprint/36350/3/FULL%20TEXT.pdf Rafdah Md Salim and Jahimin Asik and Mohd Sani Sarjadi (2021) Chemical functional groups of extractives, cellulose and lignin extracted from native Leucaena leucocephala bark. Wood Science and Technology. pp. 1-19. ISSN 1432-5225 10.1007/s00226-020-01258-2
institution Universiti Malaysia Sabah
building UMS Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Sabah
content_source UMS Institutional Repository
url_provider http://eprints.ums.edu.my/
language English
English
topic QK1-989 Botany
QL461-599.82 Insects
spellingShingle QK1-989 Botany
QL461-599.82 Insects
Rafdah Md Salim
Jahimin Asik
Mohd Sani Sarjadi
Chemical functional groups of extractives, cellulose and lignin extracted from native Leucaena leucocephala bark
description Bark from trees is considered a worthless raw material. However, this resource could be economically benificial if utilized efficiently due to its rich chemical compounds. In this study, an ethanol toluene-soluble extractive, alpha-cellulose and lignin obtained from Leucaena leucocephala bark were characterized to determine their chemical functional groups. Based on FTIR spectral analysis, the results indicated that the bands of the functional groups of the extractive from the original bark remain unchanged; however, the absorbance intensity was found to be weaker in the group frequency and fingerprint regions. Removal of extractive, pectin, hemicellulose and lignin from the bark indirectly increased the strong absorbance intensity of cellulose. Broad peaks of OH stretching found in all spectra were assigned to the presence of phenolic OH and aliphatic structures for extractive and aromatic structures of lignin. It was revealed that aromatic functional groups were mainly found in the extractive, while water, carbonyl and ether were the dominant groups in cellulose, and methyl, methylene, carbonyl and carboxyl groups were enriched in lignin.
format Article
author Rafdah Md Salim
Jahimin Asik
Mohd Sani Sarjadi
author_facet Rafdah Md Salim
Jahimin Asik
Mohd Sani Sarjadi
author_sort Rafdah Md Salim
title Chemical functional groups of extractives, cellulose and lignin extracted from native Leucaena leucocephala bark
title_short Chemical functional groups of extractives, cellulose and lignin extracted from native Leucaena leucocephala bark
title_full Chemical functional groups of extractives, cellulose and lignin extracted from native Leucaena leucocephala bark
title_fullStr Chemical functional groups of extractives, cellulose and lignin extracted from native Leucaena leucocephala bark
title_full_unstemmed Chemical functional groups of extractives, cellulose and lignin extracted from native Leucaena leucocephala bark
title_sort chemical functional groups of extractives, cellulose and lignin extracted from native leucaena leucocephala bark
publisher Springerlink
publishDate 2021
url https://eprints.ums.edu.my/id/eprint/36350/1/MdSalim2021_Article_ChemicalFunctionalGroups.pdf
https://eprints.ums.edu.my/id/eprint/36350/3/FULL%20TEXT.pdf
https://eprints.ums.edu.my/id/eprint/36350/
_version_ 1775623859233357824
score 13.211869

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