Effect of thermal modification on chemical and physical properties of Iranian Beech (Fagus orientalis) and Velvet Maple (Acer Velutinum)

The present study was done with the aim of investigation of the effect of heat treatment on chemical and physical properties of Iranian beech and Velvet maple. Results of spectroscopy showed that heat treatment led to decrease of hydroxyl groups which became more sensible with increasing temperature...

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Autores principales:	Foroogh Dastoorian, Faezeh Farhadi, Fahimeh Hoseinzadeh, majid zabihzadeh
Formato:	article
Lenguaje:	FA
Publicado:	Regional Information Center for Science and Technology (RICeST) 2018
Materias:	heat treatment water absorption swelling Fourier-transform infrared spectroscopy Forestry SD1-669.5
Acceso en línea:	https://doaj.org/article/baa9ab2235f7409b8b838196e6e13138
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id	oai:doaj.org-article:baa9ab2235f7409b8b838196e6e13138
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spelling	oai:doaj.org-article:baa9ab2235f7409b8b838196e6e131382021-12-02T03:52:42ZEffect of thermal modification on chemical and physical properties of Iranian Beech (Fagus orientalis) and Velvet Maple (Acer Velutinum)1735-09132383-112X10.22092/ijwpr.2018.116213.1445https://doaj.org/article/baa9ab2235f7409b8b838196e6e131382018-03-01T00:00:00Zhttp://ijwpr.areeo.ac.ir/article_115860_3865ff688b6e347ed566dbfa1a5f759c.pdfhttps://doaj.org/toc/1735-0913https://doaj.org/toc/2383-112XThe present study was done with the aim of investigation of the effect of heat treatment on chemical and physical properties of Iranian beech and Velvet maple. Results of spectroscopy showed that heat treatment led to decrease of hydroxyl groups which became more sensible with increasing temperature up to 175oC. Treatment at 190oC led to an increase of hydroxyl group comparing to the control ones. Increasing cellulose crystallinity, decreasing the hemicellulose content, increasing the lignin ratio, degradation of syringyl lignin and increase the condensation reaction of lignin was also obtained from spectroscopy. Results of water absorption tests also showed that heat treatment caused decreasing of water absorption. The water repellent and anti-swelling efficiency for both species showed that heat treatment at 160oC didn’t improve the water repellency and dimensional stability however treatment at 190oC led to decrease of water absorbance specially in beech. In total, the effect of heat treatment on anti-swelling efficiency in beech was more considerable comparing to acer, which can be explained by higher weight loss after heat treatment.Foroogh DastoorianFaezeh FarhadiFahimeh Hoseinzadehmajid zabihzadehRegional Information Center for Science and Technology (RICeST)articleheat treatmentwater absorptionswellingFourier-transform infrared spectroscopyForestrySD1-669.5FAتحقیقات علوم چوب و کاغذ ایران, Vol 33, Iss 1, Pp 142-154 (2018)
institution	DOAJ
collection	DOAJ
language	FA
topic	heat treatment water absorption swelling Fourier-transform infrared spectroscopy Forestry SD1-669.5
spellingShingle	heat treatment water absorption swelling Fourier-transform infrared spectroscopy Forestry SD1-669.5 Foroogh Dastoorian Faezeh Farhadi Fahimeh Hoseinzadeh majid zabihzadeh Effect of thermal modification on chemical and physical properties of Iranian Beech (Fagus orientalis) and Velvet Maple (Acer Velutinum)
description	The present study was done with the aim of investigation of the effect of heat treatment on chemical and physical properties of Iranian beech and Velvet maple. Results of spectroscopy showed that heat treatment led to decrease of hydroxyl groups which became more sensible with increasing temperature up to 175oC. Treatment at 190oC led to an increase of hydroxyl group comparing to the control ones. Increasing cellulose crystallinity, decreasing the hemicellulose content, increasing the lignin ratio, degradation of syringyl lignin and increase the condensation reaction of lignin was also obtained from spectroscopy. Results of water absorption tests also showed that heat treatment caused decreasing of water absorption. The water repellent and anti-swelling efficiency for both species showed that heat treatment at 160oC didn’t improve the water repellency and dimensional stability however treatment at 190oC led to decrease of water absorbance specially in beech. In total, the effect of heat treatment on anti-swelling efficiency in beech was more considerable comparing to acer, which can be explained by higher weight loss after heat treatment.
format	article
author	Foroogh Dastoorian Faezeh Farhadi Fahimeh Hoseinzadeh majid zabihzadeh
author_facet	Foroogh Dastoorian Faezeh Farhadi Fahimeh Hoseinzadeh majid zabihzadeh
author_sort	Foroogh Dastoorian
title	Effect of thermal modification on chemical and physical properties of Iranian Beech (Fagus orientalis) and Velvet Maple (Acer Velutinum)
title_short	Effect of thermal modification on chemical and physical properties of Iranian Beech (Fagus orientalis) and Velvet Maple (Acer Velutinum)
title_full	Effect of thermal modification on chemical and physical properties of Iranian Beech (Fagus orientalis) and Velvet Maple (Acer Velutinum)
title_fullStr	Effect of thermal modification on chemical and physical properties of Iranian Beech (Fagus orientalis) and Velvet Maple (Acer Velutinum)
title_full_unstemmed	Effect of thermal modification on chemical and physical properties of Iranian Beech (Fagus orientalis) and Velvet Maple (Acer Velutinum)
title_sort	effect of thermal modification on chemical and physical properties of iranian beech (fagus orientalis) and velvet maple (acer velutinum)
publisher	Regional Information Center for Science and Technology (RICeST)
publishDate	2018
url	https://doaj.org/article/baa9ab2235f7409b8b838196e6e13138
work_keys_str_mv	AT forooghdastoorian effectofthermalmodificationonchemicalandphysicalpropertiesofiranianbeechfagusorientalisandvelvetmapleacervelutinum AT faezehfarhadi effectofthermalmodificationonchemicalandphysicalpropertiesofiranianbeechfagusorientalisandvelvetmapleacervelutinum AT fahimehhoseinzadeh effectofthermalmodificationonchemicalandphysicalpropertiesofiranianbeechfagusorientalisandvelvetmapleacervelutinum AT majidzabihzadeh effectofthermalmodificationonchemicalandphysicalpropertiesofiranianbeechfagusorientalisandvelvetmapleacervelutinum
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Effect of thermal modification on chemical and physical properties of Iranian Beech (Fagus orientalis) and Velvet Maple (Acer Velutinum)

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