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Carboxymethylation of Sago Starch and Sago Waste and the Formation of Carboxymethyl Starchhydrogel Via Irradiation Technique

Carboxymethyl starch (CMS) and carboxymethyl sago waste (CMSW) were synthesized in completely heterogeneous conditions as a product of the reaction of sago starch or sago waste and sodium monochloroacetate (CICH₂COONa) in isopropanol and sodium hydroxide (NaOH). The influence of various parameter...

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Main Author: Zainuddin, Norhazlin
Format: Thesis
Language:English
English
Published: 2003
Subjects:
Sago
Starch - Synthesis
Online Access:http://psasir.upm.edu.my/id/eprint/9564/1/FSAS_2003_25.pdf
http://psasir.upm.edu.my/id/eprint/9564/
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spelling my.upm.eprints.95642024-03-08T07:05:43Z http://psasir.upm.edu.my/id/eprint/9564/ Carboxymethylation of Sago Starch and Sago Waste and the Formation of Carboxymethyl Starchhydrogel Via Irradiation Technique Zainuddin, Norhazlin Carboxymethyl starch (CMS) and carboxymethyl sago waste (CMSW) were synthesized in completely heterogeneous conditions as a product of the reaction of sago starch or sago waste and sodium monochloroacetate (CICH₂COONa) in isopropanol and sodium hydroxide (NaOH). The influence of various parameters on the degree of substitution (DS) was determined. The optimum conditions obtained for CMS were as follows: NaOH concentration, 20% w/v; reaction time, 1 h; reaction temperature, 55°C; and amount of CICH₂COONa, 1.5 mole. Meanwhile the optimum conditions for carboxymethylation of sago waste were as follows: NaOH concentration, 25 % w/v; reaction time, 2 h; reaction temperature, 55°C; and amount of CICI-bCOONa, 2.0 mole. The DS and reaction efficiency (RE) under optimum conditions for CMS were 1.05 and· 85.9%, respectively, whereas for CMSW were 1.04 and 79.5%, respectively. 2003 Thesis NonPeerReviewed text en http://psasir.upm.edu.my/id/eprint/9564/1/FSAS_2003_25.pdf Zainuddin, Norhazlin (2003) Carboxymethylation of Sago Starch and Sago Waste and the Formation of Carboxymethyl Starchhydrogel Via Irradiation Technique. Masters thesis, Universiti Putra Malaysia. Sago Starch - Synthesis English
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
English
topic Sago
Starch - Synthesis
spellingShingle Sago
Starch - Synthesis
Zainuddin, Norhazlin
Carboxymethylation of Sago Starch and Sago Waste and the Formation of Carboxymethyl Starchhydrogel Via Irradiation Technique
description Carboxymethyl starch (CMS) and carboxymethyl sago waste (CMSW) were synthesized in completely heterogeneous conditions as a product of the reaction of sago starch or sago waste and sodium monochloroacetate (CICH₂COONa) in isopropanol and sodium hydroxide (NaOH). The influence of various parameters on the degree of substitution (DS) was determined. The optimum conditions obtained for CMS were as follows: NaOH concentration, 20% w/v; reaction time, 1 h; reaction temperature, 55°C; and amount of CICH₂COONa, 1.5 mole. Meanwhile the optimum conditions for carboxymethylation of sago waste were as follows: NaOH concentration, 25 % w/v; reaction time, 2 h; reaction temperature, 55°C; and amount of CICI-bCOONa, 2.0 mole. The DS and reaction efficiency (RE) under optimum conditions for CMS were 1.05 and· 85.9%, respectively, whereas for CMSW were 1.04 and 79.5%, respectively.
format Thesis
author Zainuddin, Norhazlin
author_facet Zainuddin, Norhazlin
author_sort Zainuddin, Norhazlin
title Carboxymethylation of Sago Starch and Sago Waste and the Formation of Carboxymethyl Starchhydrogel Via Irradiation Technique
title_short Carboxymethylation of Sago Starch and Sago Waste and the Formation of Carboxymethyl Starchhydrogel Via Irradiation Technique
title_full Carboxymethylation of Sago Starch and Sago Waste and the Formation of Carboxymethyl Starchhydrogel Via Irradiation Technique
title_fullStr Carboxymethylation of Sago Starch and Sago Waste and the Formation of Carboxymethyl Starchhydrogel Via Irradiation Technique
title_full_unstemmed Carboxymethylation of Sago Starch and Sago Waste and the Formation of Carboxymethyl Starchhydrogel Via Irradiation Technique
title_sort carboxymethylation of sago starch and sago waste and the formation of carboxymethyl starchhydrogel via irradiation technique
publishDate 2003
url http://psasir.upm.edu.my/id/eprint/9564/1/FSAS_2003_25.pdf
http://psasir.upm.edu.my/id/eprint/9564/
_version_ 1794564287058935808
score 13.211869

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