Chemical, color and strength changes of hot oil treatment process on 15-Year-old cultivated acacia hybrid

The chemical, color and strength properties of thermally modified cultivated 15-year-old Acacia hybrid were investigated. Logs of A. hybrid were harvested and cut at the bottom, middle and top sections. The wood later underwent hot oil thermal modification using palm oil at temperatures 180, 200 and...

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Main Authors: Razak Wahab, Izyan Khalid, Mahmud Sudin, Othman Sulaiman
Format: Non-Indexed Article
Published: Maxwell Scientific Organization 2011
Online Access:http://discol.umk.edu.my/id/eprint/7655/
http://maxwellsci.com/print/crjbs/v3-559-569.pdf
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spelling my.umk.eprints.76552022-05-23T10:21:30Z http://discol.umk.edu.my/id/eprint/7655/ Chemical, color and strength changes of hot oil treatment process on 15-Year-old cultivated acacia hybrid Razak Wahab Izyan Khalid Mahmud Sudin Othman Sulaiman The chemical, color and strength properties of thermally modified cultivated 15-year-old Acacia hybrid were investigated. Logs of A. hybrid were harvested and cut at the bottom, middle and top sections. The wood later underwent hot oil thermal modification using palm oil at temperatures 180, 200 and 220ºC for 30, 60 and 90 min. Untreated wood was used as control. The hot oil thermal modification process caused some features changed in the chemical composition, color appearances and strength properties of A. hybrid wood. Parameters such as temperatures and treatment time were closely monitored as they influence the chemical, color and strength changes in the treated wood. Temperatures of 180, 200 and 220ºC, and treatment time of 1, 2 and 3 h. were used in the study. The degradation in holocellulose, cellulose, and hemicellulose contents was recognized when acacia woods were exposed to oil thermally modified process. Holocellulose and celulose degraded with the increasing of treatment temperature and duration of heating exposure, while lignin showed the increment in content through this treatment. The color changes in the sapwood and heartwood were measured using the Minolta Chroma-meter CR-310 and the results are presented according to the CIE L* a* b* color co-ordinates system. The results show that temperature at certain treatment time enhanced and darkened the treated wood. The color of the treated sapwood can be enhanced to match the color of the natural A. hybrid heartwood. The strength properties of the oil heat treated A. hybrid wood decreases in values of both MOR and MOE throughout the treatment process. The decreases in values were influenced by temperature and duration of the treatment Maxwell Scientific Organization 2011-11 Non-Indexed Article NonPeerReviewed Razak Wahab and Izyan Khalid and Mahmud Sudin and Othman Sulaiman (2011) Chemical, color and strength changes of hot oil treatment process on 15-Year-old cultivated acacia hybrid. Current Research Journal of Biological Sciences, 3 (6). pp. 559-569. ISSN 2041-0778 http://maxwellsci.com/print/crjbs/v3-559-569.pdf
institution Universiti Malaysia Kelantan
building Perpustakaan Universiti Malaysia Kelantan
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Kelantan
content_source UMK Institutional Repository
url_provider http://umkeprints.umk.edu.my/
description The chemical, color and strength properties of thermally modified cultivated 15-year-old Acacia hybrid were investigated. Logs of A. hybrid were harvested and cut at the bottom, middle and top sections. The wood later underwent hot oil thermal modification using palm oil at temperatures 180, 200 and 220ºC for 30, 60 and 90 min. Untreated wood was used as control. The hot oil thermal modification process caused some features changed in the chemical composition, color appearances and strength properties of A. hybrid wood. Parameters such as temperatures and treatment time were closely monitored as they influence the chemical, color and strength changes in the treated wood. Temperatures of 180, 200 and 220ºC, and treatment time of 1, 2 and 3 h. were used in the study. The degradation in holocellulose, cellulose, and hemicellulose contents was recognized when acacia woods were exposed to oil thermally modified process. Holocellulose and celulose degraded with the increasing of treatment temperature and duration of heating exposure, while lignin showed the increment in content through this treatment. The color changes in the sapwood and heartwood were measured using the Minolta Chroma-meter CR-310 and the results are presented according to the CIE L* a* b* color co-ordinates system. The results show that temperature at certain treatment time enhanced and darkened the treated wood. The color of the treated sapwood can be enhanced to match the color of the natural A. hybrid heartwood. The strength properties of the oil heat treated A. hybrid wood decreases in values of both MOR and MOE throughout the treatment process. The decreases in values were influenced by temperature and duration of the treatment
format Non-Indexed Article
author Razak Wahab
Izyan Khalid
Mahmud Sudin
Othman Sulaiman
spellingShingle Razak Wahab
Izyan Khalid
Mahmud Sudin
Othman Sulaiman
Chemical, color and strength changes of hot oil treatment process on 15-Year-old cultivated acacia hybrid
author_facet Razak Wahab
Izyan Khalid
Mahmud Sudin
Othman Sulaiman
author_sort Razak Wahab
title Chemical, color and strength changes of hot oil treatment process on 15-Year-old cultivated acacia hybrid
title_short Chemical, color and strength changes of hot oil treatment process on 15-Year-old cultivated acacia hybrid
title_full Chemical, color and strength changes of hot oil treatment process on 15-Year-old cultivated acacia hybrid
title_fullStr Chemical, color and strength changes of hot oil treatment process on 15-Year-old cultivated acacia hybrid
title_full_unstemmed Chemical, color and strength changes of hot oil treatment process on 15-Year-old cultivated acacia hybrid
title_sort chemical, color and strength changes of hot oil treatment process on 15-year-old cultivated acacia hybrid
publisher Maxwell Scientific Organization
publishDate 2011
url http://discol.umk.edu.my/id/eprint/7655/
http://maxwellsci.com/print/crjbs/v3-559-569.pdf
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score 13.211869