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Universiti Pertanian Malaysia was established in 1971 as a result of the merger between the College of Agriculture, Malaya and the Faculty of Agriculture, University of Malaya. The Library of the College of Agriculture, Malaya thus became the Universiti Pertanian Malaysia Library. When the university was named as Universiti Putra Malaysia (UPM) in 1997, the Library became the Universiti Putra Malaysia Library. As of 23rd May 2002, the Library has been named as Perpustakaan Sultan Abdul Samad (PSAS), Universiti Putra Malaysia, after the late gre [...]

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Journal Article

Journal Article

Biodegradation of carboxymethyl cellulose hydrogel from sago waste in garden soil  [2010]

Pushpamalar J.; Langford, S. J.; Ahmad M.; Hashim K.; et al.

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Plastic materials used daily have become a serious problem to environment. To overcome this problem, researchers are paying tremendous attention to produce biodegradable pOlymers. Cellulose ethers are used to produce degradable polymers where the glycosidic bonding polysaccharides are susceptible to biodegradation bymicroorganisms. This property is an advantageous characteristic of hydrogels developed in agricultural, medical and other fields. In this study, -the carbomethyl cellulose (CMC) hydrogels of DS 0.4, 0.6 and 0.8 with gel fraction (GF) of 25%, 35% and ≥ 40% were buried to allow attack by microorganisms and moisture. Thebiodegradability of the hydrogel was investigated and it was observed that the samples disintegrated indicating a biodegradation in the cellulose phase. It showed that the degradation of CMC hydrogels of DS 0.4 was fastest of all hydrogels and biodegradation was fastest for the hydrogel with GF of 25% followed by 35% and40%, respectively. The percentage biodegradation is in increasing order for CMC hydrogels of DS 0.6 with GF 25%, 35% and 46%. After 4 months, the percentage of biodegradation for CMC hydrogels of DS 0.6 and with GF 25% and 35% were 92% and the hydrogel with GF of 46% was 83%. For the same period of biodegradation, the percentage of biodegradation for CMC hydrogels of DS 0.8 and with GF 25% was 72% and hydrogels with GF of 35% and 48% were 64%.
From the journal
Proceedings of the Seminar on Biomass for Biofuels and Value-Added Products 2009 : Towards Efficient Utilization of Biomass

Bibliographic information

Language:
English
Type:
Other
In AGRIS since:
2015
Start Page:
206
End Page:
208
Publisher:
Forest Research Institute Malaysia
ISBN:
978-96-75221-361
All titles:
"Biodegradation of carboxymethyl cellulose hydrogel from sago waste in garden soil"@eng
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Bibliographic information

Language:
English
Type:
Other
In AGRIS since:
2015
Start Page:
206
End Page:
208
Publisher:
Forest Research Institute Malaysia
ISBN:
978-96-75221-361
All titles:
"Biodegradation of carboxymethyl cellulose hydrogel from sago waste in garden soil"@eng