Alteration in colour and fungal resistance of thermally treated oil palm trunk and rubberwood particleboard using palm oil

Urea formaldehyde-bonded particleboard made from oil palm trunk (OPT) and rubberwood (RW) were soaked in -palm oil for 24 hr before thermally treated in oven at 180°C, 200°C and 220°C. Colour changes and decay resistance against white rot fungus (Pycnoporus sanguineus) of the samples after thermal t...

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Published in:Journal of Oil Palm Research
Main Author: Lee S.H.; Zaidon A.; Rasdianah D.; Lum W.C.; Aisyah H.A.
Format: Article
Language:English
Published: Lembaga Minyak Sawit Malaysia 2020
Online Access:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85088241792&doi=10.21894%2fjopr.2020.0009&partnerID=40&md5=da6dda42e0a0ee1008146bce4314e547
id 2-s2.0-85088241792
spelling 2-s2.0-85088241792
Lee S.H.; Zaidon A.; Rasdianah D.; Lum W.C.; Aisyah H.A.
Alteration in colour and fungal resistance of thermally treated oil palm trunk and rubberwood particleboard using palm oil
2020
Journal of Oil Palm Research
32

10.21894/jopr.2020.0009
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85088241792&doi=10.21894%2fjopr.2020.0009&partnerID=40&md5=da6dda42e0a0ee1008146bce4314e547
Urea formaldehyde-bonded particleboard made from oil palm trunk (OPT) and rubberwood (RW) were soaked in -palm oil for 24 hr before thermally treated in oven at 180°C, 200°C and 220°C. Colour changes and decay resistance against white rot fungus (Pycnoporus sanguineus) of the samples after thermal treatment were investigated. After thermal treatment, Lightness (L∗) of the samples decreased and the extent of darkening increased along with increasing treatment temperature. Generally, RW samples became redder after heat treatment while OPT samples basically showed the same pattern except it became greener when treated at 220°C. Yellowing (positive b∗ value) was observed at milder temperature and succeeded by bluing at higher temperature. Improvement in fungal resistance was observed for both OPT and RW samples. The weight loss of the untreated OPT and RW samples were 12.97 ± 2.62% and 30.71 ± 1.75%, respectively. At 220°C, the respective weight loss of OPT and RW samples were 4.58 ± 0.44% and 5.78 ± 2.23%. RW showed lower fungal resistance compared to that of the OPT. Strong correlations (R2> 0.75) were found between weight loss and ΔE∗ suggested that fungal resistance increased along with increasing ΔE∗ values. © 2020 Lembaga Minyak Sawit Malaysia. All rights reserved.
Lembaga Minyak Sawit Malaysia
15112780
English
Article
All Open Access; Gold Open Access
author Lee S.H.; Zaidon A.; Rasdianah D.; Lum W.C.; Aisyah H.A.
spellingShingle Lee S.H.; Zaidon A.; Rasdianah D.; Lum W.C.; Aisyah H.A.
Alteration in colour and fungal resistance of thermally treated oil palm trunk and rubberwood particleboard using palm oil
author_facet Lee S.H.; Zaidon A.; Rasdianah D.; Lum W.C.; Aisyah H.A.
author_sort Lee S.H.; Zaidon A.; Rasdianah D.; Lum W.C.; Aisyah H.A.
title Alteration in colour and fungal resistance of thermally treated oil palm trunk and rubberwood particleboard using palm oil
title_short Alteration in colour and fungal resistance of thermally treated oil palm trunk and rubberwood particleboard using palm oil
title_full Alteration in colour and fungal resistance of thermally treated oil palm trunk and rubberwood particleboard using palm oil
title_fullStr Alteration in colour and fungal resistance of thermally treated oil palm trunk and rubberwood particleboard using palm oil
title_full_unstemmed Alteration in colour and fungal resistance of thermally treated oil palm trunk and rubberwood particleboard using palm oil
title_sort Alteration in colour and fungal resistance of thermally treated oil palm trunk and rubberwood particleboard using palm oil
publishDate 2020
container_title Journal of Oil Palm Research
container_volume 32
container_issue
doi_str_mv 10.21894/jopr.2020.0009
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85088241792&doi=10.21894%2fjopr.2020.0009&partnerID=40&md5=da6dda42e0a0ee1008146bce4314e547
description Urea formaldehyde-bonded particleboard made from oil palm trunk (OPT) and rubberwood (RW) were soaked in -palm oil for 24 hr before thermally treated in oven at 180°C, 200°C and 220°C. Colour changes and decay resistance against white rot fungus (Pycnoporus sanguineus) of the samples after thermal treatment were investigated. After thermal treatment, Lightness (L∗) of the samples decreased and the extent of darkening increased along with increasing treatment temperature. Generally, RW samples became redder after heat treatment while OPT samples basically showed the same pattern except it became greener when treated at 220°C. Yellowing (positive b∗ value) was observed at milder temperature and succeeded by bluing at higher temperature. Improvement in fungal resistance was observed for both OPT and RW samples. The weight loss of the untreated OPT and RW samples were 12.97 ± 2.62% and 30.71 ± 1.75%, respectively. At 220°C, the respective weight loss of OPT and RW samples were 4.58 ± 0.44% and 5.78 ± 2.23%. RW showed lower fungal resistance compared to that of the OPT. Strong correlations (R2> 0.75) were found between weight loss and ΔE∗ suggested that fungal resistance increased along with increasing ΔE∗ values. © 2020 Lembaga Minyak Sawit Malaysia. All rights reserved.
publisher Lembaga Minyak Sawit Malaysia
issn 15112780
language English
format Article
accesstype All Open Access; Gold Open Access
record_format scopus
collection Scopus
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