Chemical and thermal properties of purified kenaf core and oil palm empty fruit bunch lignin

Chemical and thermal properties of pure lignin are depending on the plant origin, extraction method and type of lignocellulosic. In this study, lignin from oil palm empty fruit bunch (EFB) and kenaf core were recovered from soda black liquor by two steps of acid precipitation with hydrochloric acid...

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Main Authors:	Sharifah Nurul Ain Syed Hashim, Sarani Zakaria, Chin, Hua Chia, Fei, Ling Pua, Sharifah Nabihah Syed Jaafar
Format:	Article
Language:	English
Published:	Penerbit Universiti Kebangsaan Malaysia 2016
Online Access:	http://journalarticle.ukm.my/10383/ http://journalarticle.ukm.my/10383/ http://journalarticle.ukm.my/10383/1/09%20%20Sharifah%20Nurul%20Ain.pdf

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recordtype	eprints
spelling	ukm-103832017-05-22T00:40:45Z http://journalarticle.ukm.my/10383/ Chemical and thermal properties of purified kenaf core and oil palm empty fruit bunch lignin Sharifah Nurul Ain Syed Hashim, Sarani Zakaria, Chin, Hua Chia Fei, Ling Pua Sharifah Nabihah Syed Jaafar, Chemical and thermal properties of pure lignin are depending on the plant origin, extraction method and type of lignocellulosic. In this study, lignin from oil palm empty fruit bunch (EFB) and kenaf core were recovered from soda black liquor by two steps of acid precipitation with hydrochloric acid and followed by soxhlet with n-hexane. The XRD analysis of purified EFB lignin (EAL) and purified kenaf core lignin (KAL) exhibited amorphous properties, similar to the standard alkali lignin (SAL). The FTIR and Raman spectra showed that all samples consist of HGS unit. In FTIR, the syringyl unit is assigned at (1125 cm-1), (1327 and 1121 cm-1) and (1326 and 1117 cm-1) meanwhile the guaicyl unit is assigned at (1263, 1212 and 1028 cm-1), (1271, 1217 and 1028 cm-1) and (1270, 1211 and 1030 cm-1) for SAL, EAL and KAL, respectively. The peak around 1160 cm-1 represents C-O stretching of conjugated ester group present in HGS lignin. As for Raman, the HGS unit exists in the range of 1100-1400 cm-1. Among the purified samples, the TGA result showed that KAL has a better thermal stability with the residue of 36.49% and higher Tg value which is 152.69°C. Penerbit Universiti Kebangsaan Malaysia 2016-11 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/10383/1/09%20%20Sharifah%20Nurul%20Ain.pdf Sharifah Nurul Ain Syed Hashim, and Sarani Zakaria, and Chin, Hua Chia and Fei, Ling Pua and Sharifah Nabihah Syed Jaafar, (2016) Chemical and thermal properties of purified kenaf core and oil palm empty fruit bunch lignin. Sains Malaysiana, 45 (11). pp. 1649-1653. ISSN 0126-6039 http://www.ukm.my/jsm/malay_journals/jilid45bil11_2016/KandunganJilid45Bil11_2016.htm
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	Chemical and thermal properties of pure lignin are depending on the plant origin, extraction method and type of lignocellulosic. In this study, lignin from oil palm empty fruit bunch (EFB) and kenaf core were recovered from soda black liquor by two steps of acid precipitation with hydrochloric acid and followed by soxhlet with n-hexane. The XRD analysis of purified EFB lignin (EAL) and purified kenaf core lignin (KAL) exhibited amorphous properties, similar to the standard alkali lignin (SAL). The FTIR and Raman spectra showed that all samples consist of HGS unit. In FTIR, the syringyl unit is assigned at (1125 cm-1), (1327 and 1121 cm-1) and (1326 and 1117 cm-1) meanwhile the guaicyl unit is assigned at (1263, 1212 and 1028 cm-1), (1271, 1217 and 1028 cm-1) and (1270, 1211 and 1030 cm-1) for SAL, EAL and KAL, respectively. The peak around 1160 cm-1 represents C-O stretching of conjugated ester group present in HGS lignin. As for Raman, the HGS unit exists in the range of 1100-1400 cm-1. Among the purified samples, the TGA result showed that KAL has a better thermal stability with the residue of 36.49% and higher Tg value which is 152.69°C.
format	Article
author	Sharifah Nurul Ain Syed Hashim, Sarani Zakaria, Chin, Hua Chia Fei, Ling Pua Sharifah Nabihah Syed Jaafar,
spellingShingle	Sharifah Nurul Ain Syed Hashim, Sarani Zakaria, Chin, Hua Chia Fei, Ling Pua Sharifah Nabihah Syed Jaafar, Chemical and thermal properties of purified kenaf core and oil palm empty fruit bunch lignin
author_facet	Sharifah Nurul Ain Syed Hashim, Sarani Zakaria, Chin, Hua Chia Fei, Ling Pua Sharifah Nabihah Syed Jaafar,
author_sort	Sharifah Nurul Ain Syed Hashim,
title	Chemical and thermal properties of purified kenaf core and oil palm empty fruit bunch lignin
title_short	Chemical and thermal properties of purified kenaf core and oil palm empty fruit bunch lignin
title_full	Chemical and thermal properties of purified kenaf core and oil palm empty fruit bunch lignin
title_fullStr	Chemical and thermal properties of purified kenaf core and oil palm empty fruit bunch lignin
title_full_unstemmed	Chemical and thermal properties of purified kenaf core and oil palm empty fruit bunch lignin
title_sort	chemical and thermal properties of purified kenaf core and oil palm empty fruit bunch lignin
publisher	Penerbit Universiti Kebangsaan Malaysia
publishDate	2016
url	http://journalarticle.ukm.my/10383/ http://journalarticle.ukm.my/10383/ http://journalarticle.ukm.my/10383/1/09%20%20Sharifah%20Nurul%20Ain.pdf
first_indexed	2023-09-18T19:57:16Z
last_indexed	2023-09-18T19:57:16Z
_version_	1777406613202665472

Chemical and thermal properties of purified kenaf core and oil palm empty fruit bunch lignin

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