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Properties of cellulose nanocrystals from oil palm trunk isolated by total chlorine free method

Cellulose nanocrystals were isolated from oil palm trunk by total chlorine free method. The samples were either water pre-hydrolyzed or non-water pre-hydrolyzed, subjected to soda pulping, acidified and ozone bleached. Cellulose and cellulose nanocrystal (CNC) physical, chemical, thermal propertie...

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Main Authors: Junidah, Lamaming, Rokiah, Hashim, Leh, Cheu Peng, Othman, Sulaiman
Format: Article
Language:English
Published: Elsevier Science, Ltd. 2017
Subjects:
Q Science (General)
Online Access:http://ir.unimas.my/id/eprint/45288/1/Lamaming%20et%20al%202017a.pdf
http://ir.unimas.my/id/eprint/45288/
https://www.sciencedirect.com/science/article/pii/S0144861716311079
https://doi.org/10.1016/j.carbpol.2016.09.053
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spelling my.unimas.ir.452882024-07-17T02:28:31Z http://ir.unimas.my/id/eprint/45288/ Properties of cellulose nanocrystals from oil palm trunk isolated by total chlorine free method Junidah, Lamaming Rokiah, Hashim Leh, Cheu Peng Othman, Sulaiman Q Science (General) Cellulose nanocrystals were isolated from oil palm trunk by total chlorine free method. The samples were either water pre-hydrolyzed or non-water pre-hydrolyzed, subjected to soda pulping, acidified and ozone bleached. Cellulose and cellulose nanocrystal (CNC) physical, chemical, thermal properties, and crystallinity index were investigated by composition analysis, scanning electron microscopy, transmission electron microscopy, fourier transform infrared, thermogravimetric analysis and X-ray diffraction. Water pre-hydrolysis reduced lignin (<0.5%) and increased holocellulose (99.6%) of ozone-bleached cellulose. Water pre-hydrolyzed cellulose exhibited surface fibrillation and peeling off after acid hydrolysis process compared to non-fibrillated of non-water pre-hydrolyzed cellulose. Water pre-hydrolysis improved final CNC crystallinity (up to 75%) compared to CNC without water pre-hydrolysis crystallinity (69%). Cellulose degradation was found to occur during ozone bleaching stage but CNC showed an increase in crystallinity after acid hydrolysis. Thus, oil palm trunk CNC can be potentially applied in pharmaceutical, food, medical and nanocomposites. Elsevier Science, Ltd. 2017 Article PeerReviewed text en http://ir.unimas.my/id/eprint/45288/1/Lamaming%20et%20al%202017a.pdf Junidah, Lamaming and Rokiah, Hashim and Leh, Cheu Peng and Othman, Sulaiman (2017) Properties of cellulose nanocrystals from oil palm trunk isolated by total chlorine free method. Carbohydrate Polymers, 156. pp. 409-416. ISSN 01448617 https://www.sciencedirect.com/science/article/pii/S0144861716311079 https://doi.org/10.1016/j.carbpol.2016.09.053
institution Universiti Malaysia Sarawak
building Centre for Academic Information Services (CAIS)
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Sarawak
content_source UNIMAS Institutional Repository
url_provider http://ir.unimas.my/
language English
topic Q Science (General)
spellingShingle Q Science (General)
Junidah, Lamaming
Rokiah, Hashim
Leh, Cheu Peng
Othman, Sulaiman
Properties of cellulose nanocrystals from oil palm trunk isolated by total chlorine free method
description Cellulose nanocrystals were isolated from oil palm trunk by total chlorine free method. The samples were either water pre-hydrolyzed or non-water pre-hydrolyzed, subjected to soda pulping, acidified and ozone bleached. Cellulose and cellulose nanocrystal (CNC) physical, chemical, thermal properties, and crystallinity index were investigated by composition analysis, scanning electron microscopy, transmission electron microscopy, fourier transform infrared, thermogravimetric analysis and X-ray diffraction. Water pre-hydrolysis reduced lignin (<0.5%) and increased holocellulose (99.6%) of ozone-bleached cellulose. Water pre-hydrolyzed cellulose exhibited surface fibrillation and peeling off after acid hydrolysis process compared to non-fibrillated of non-water pre-hydrolyzed cellulose. Water pre-hydrolysis improved final CNC crystallinity (up to 75%) compared to CNC without water pre-hydrolysis crystallinity (69%). Cellulose degradation was found to occur during ozone bleaching stage but CNC showed an increase in crystallinity after acid hydrolysis. Thus, oil palm trunk CNC can be potentially applied in pharmaceutical, food, medical and nanocomposites.
format Article
author Junidah, Lamaming
Rokiah, Hashim
Leh, Cheu Peng
Othman, Sulaiman
author_facet Junidah, Lamaming
Rokiah, Hashim
Leh, Cheu Peng
Othman, Sulaiman
author_sort Junidah, Lamaming
title Properties of cellulose nanocrystals from oil palm trunk isolated by total chlorine free method
title_short Properties of cellulose nanocrystals from oil palm trunk isolated by total chlorine free method
title_full Properties of cellulose nanocrystals from oil palm trunk isolated by total chlorine free method
title_fullStr Properties of cellulose nanocrystals from oil palm trunk isolated by total chlorine free method
title_full_unstemmed Properties of cellulose nanocrystals from oil palm trunk isolated by total chlorine free method
title_sort properties of cellulose nanocrystals from oil palm trunk isolated by total chlorine free method
publisher Elsevier Science, Ltd.
publishDate 2017
url http://ir.unimas.my/id/eprint/45288/1/Lamaming%20et%20al%202017a.pdf
http://ir.unimas.my/id/eprint/45288/
https://www.sciencedirect.com/science/article/pii/S0144861716311079
https://doi.org/10.1016/j.carbpol.2016.09.053
_version_ 1806430318851260416
score 13.211869

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