Synthesis of Nanocellulose from Rubberwood Fibers Via Ultrasonication Combined with Enzymatic and Chemical Pretreatments

This paper presents synthesis of nanocellulose from rubber wood (Hevea brasiliensis) fibers via ultrasonication combined with enzymatic and chemical pretreatments. Cellulose nanofibers were separated from rubber wood fibers in three distinct stages. Initially, rubber wood fibers were subjected to a...

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Main Authors:	Poddar, Pradeep Kumar, Gupta, Arun, Saidatul Shima, Jamari, Ng, Siew Kim, Khan, Tanveer Ahmed, Sharma, Swati, Mohd Aizudin, Abd Aziz
Format:	Article
Language:	English
Published:	Asian Online Journals 2015
Subjects:	TP Chemical technology
Online Access:	http://umpir.ump.edu.my/id/eprint/12709/ http://umpir.ump.edu.my/id/eprint/12709/ http://umpir.ump.edu.my/id/eprint/12709/1/fkksa-2015-arun-Synthesis%20of%20Nanocellulose%20from%20Rubberwood.pdf

id	ump-12709
recordtype	eprints
spelling	ump-127092019-08-28T07:24:36Z http://umpir.ump.edu.my/id/eprint/12709/ Synthesis of Nanocellulose from Rubberwood Fibers Via Ultrasonication Combined with Enzymatic and Chemical Pretreatments Poddar, Pradeep Kumar Gupta, Arun Saidatul Shima, Jamari Ng, Siew Kim Khan, Tanveer Ahmed Sharma, Swati Mohd Aizudin, Abd Aziz TP Chemical technology This paper presents synthesis of nanocellulose from rubber wood (Hevea brasiliensis) fibers via ultrasonication combined with enzymatic and chemical pretreatments. Cellulose nanofibers were separated from rubber wood fibers in three distinct stages. Initially, rubber wood fibers were subjected to a series of enzymatic and chemical pre-treatments to eliminate lignin and hemicellulose. The obtained chemical-purified cellulose fibers were then mechanically separated into nanofibers using ultrasonication. The diameter distributions of the resulting nanofibers were dependent on the output power of ultrasonic treatment. The extent of dispersion improved significantly with increasing output power of ultrasonic treatment. Microscopy study showed that the diameters of the nanofibers isolated ranged from 8.7 to 20 μm. The effectiveness of laccase and xylanase enzymes was also studied. The results obtained from FTIR and thermo gravimetric analyses indicated that there were consistencies between the studied enzymes to the thermal stability or chemical structure. FTIR spectroscopy confirmed that the prominent peaks indicating that most of the lignin and hemicellulose were removed during the step-wise chemical treatment were present in the spectrum. FTIR spectroscopy suggested that the spectrum of cellulose nanofibers obtained under different ultrasonic output powers and chemical-purified cellulose fibers were similar, signifying that the molecular structure of cellulose were unaffected by the ultrasonic treatment. TGA results revealed that the thermal properties of cellulose nanofibers were enhanced and the thermal degradation temperature increased to proximately 310 °C as compared to 240 °C of the untreated rubber wood fibers. Results from this work may be potentially applied in various fields such as bio-nanocomposites, filtration media packaging, tissue engineering scaffolds, and so on. Asian Online Journals 2015 Article PeerReviewed application/pdf en cc_by http://umpir.ump.edu.my/id/eprint/12709/1/fkksa-2015-arun-Synthesis%20of%20Nanocellulose%20from%20Rubberwood.pdf Poddar, Pradeep Kumar and Gupta, Arun and Saidatul Shima, Jamari and Ng, Siew Kim and Khan, Tanveer Ahmed and Sharma, Swati and Mohd Aizudin, Abd Aziz (2015) Synthesis of Nanocellulose from Rubberwood Fibers Via Ultrasonication Combined with Enzymatic and Chemical Pretreatments. Asian Journal of Applied Sciences, 3 (5). pp. 520-527. ISSN 2321–0893 http://ajouronline.com/index.php?journal=AJAS&page=article&op=view&path[]=3022
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TP Chemical technology
spellingShingle	TP Chemical technology Poddar, Pradeep Kumar Gupta, Arun Saidatul Shima, Jamari Ng, Siew Kim Khan, Tanveer Ahmed Sharma, Swati Mohd Aizudin, Abd Aziz Synthesis of Nanocellulose from Rubberwood Fibers Via Ultrasonication Combined with Enzymatic and Chemical Pretreatments
description	This paper presents synthesis of nanocellulose from rubber wood (Hevea brasiliensis) fibers via ultrasonication combined with enzymatic and chemical pretreatments. Cellulose nanofibers were separated from rubber wood fibers in three distinct stages. Initially, rubber wood fibers were subjected to a series of enzymatic and chemical pre-treatments to eliminate lignin and hemicellulose. The obtained chemical-purified cellulose fibers were then mechanically separated into nanofibers using ultrasonication. The diameter distributions of the resulting nanofibers were dependent on the output power of ultrasonic treatment. The extent of dispersion improved significantly with increasing output power of ultrasonic treatment. Microscopy study showed that the diameters of the nanofibers isolated ranged from 8.7 to 20 μm. The effectiveness of laccase and xylanase enzymes was also studied. The results obtained from FTIR and thermo gravimetric analyses indicated that there were consistencies between the studied enzymes to the thermal stability or chemical structure. FTIR spectroscopy confirmed that the prominent peaks indicating that most of the lignin and hemicellulose were removed during the step-wise chemical treatment were present in the spectrum. FTIR spectroscopy suggested that the spectrum of cellulose nanofibers obtained under different ultrasonic output powers and chemical-purified cellulose fibers were similar, signifying that the molecular structure of cellulose were unaffected by the ultrasonic treatment. TGA results revealed that the thermal properties of cellulose nanofibers were enhanced and the thermal degradation temperature increased to proximately 310 °C as compared to 240 °C of the untreated rubber wood fibers. Results from this work may be potentially applied in various fields such as bio-nanocomposites, filtration media packaging, tissue engineering scaffolds, and so on.
format	Article
author	Poddar, Pradeep Kumar Gupta, Arun Saidatul Shima, Jamari Ng, Siew Kim Khan, Tanveer Ahmed Sharma, Swati Mohd Aizudin, Abd Aziz
author_facet	Poddar, Pradeep Kumar Gupta, Arun Saidatul Shima, Jamari Ng, Siew Kim Khan, Tanveer Ahmed Sharma, Swati Mohd Aizudin, Abd Aziz
author_sort	Poddar, Pradeep Kumar
title	Synthesis of Nanocellulose from Rubberwood Fibers Via Ultrasonication Combined with Enzymatic and Chemical Pretreatments
title_short	Synthesis of Nanocellulose from Rubberwood Fibers Via Ultrasonication Combined with Enzymatic and Chemical Pretreatments
title_full	Synthesis of Nanocellulose from Rubberwood Fibers Via Ultrasonication Combined with Enzymatic and Chemical Pretreatments
title_fullStr	Synthesis of Nanocellulose from Rubberwood Fibers Via Ultrasonication Combined with Enzymatic and Chemical Pretreatments
title_full_unstemmed	Synthesis of Nanocellulose from Rubberwood Fibers Via Ultrasonication Combined with Enzymatic and Chemical Pretreatments
title_sort	synthesis of nanocellulose from rubberwood fibers via ultrasonication combined with enzymatic and chemical pretreatments
publisher	Asian Online Journals
publishDate	2015
url	http://umpir.ump.edu.my/id/eprint/12709/ http://umpir.ump.edu.my/id/eprint/12709/ http://umpir.ump.edu.my/id/eprint/12709/1/fkksa-2015-arun-Synthesis%20of%20Nanocellulose%20from%20Rubberwood.pdf
first_indexed	2023-09-18T22:14:34Z
last_indexed	2023-09-18T22:14:34Z
_version_	1777415251363364864

Synthesis of Nanocellulose from Rubberwood Fibers Via Ultrasonication Combined with Enzymatic and Chemical Pretreatments

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