Degradation of Chitosan by Hydrothermal Process in The Presence of Sonication Pre-Treatment with Supercritical CO2 as Pressurized Fluid - Ubaya Repository

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from:
Selected
Contributions
Int. Conf.on Innovationin Polymer
2013(lPST2ol3)
Science
andTechnology
Yogyakarta,
Indonesia
october 7-1O,2013

SymposiumEditor:
AgusHaryono
(lndonesian
Indonesia)
Instituteof Sciences,
J u n - i c hAi z u m a

(OsakaUniversity,Japan)

VerlagCmbH& Co.KCaA
O 2or5WILEY-VCH
Weinheim

WILEY.VCH

Macromolecular

Symposia:
Vol.353
Coven The IDlemalional ConferenceoD
Innovatior in PolymerScienceand T€chnolosy 2013 (IPST2013) look placc in
Yogyakan!. lndonesh.This issuepresents
seleclcd pap€rswhich has becn presetted
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2013
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in PolymerScience
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Prefa 80% and
low degree of polymerization, since low
molecular weight chitosan (LMWC) and
chitooligomers (COS) are responsible for
the chitosan biological activity.[3] Muzzarelli
et al.[4] demonstrated that chitosan with an
average molecular weight in the range of
1,000–10,000 Da is very interesting for a
number of medical and biotechnological
applications. Moreover, the low molecular
weight chitosan and chitosan oligomers
possess a high solubility in water. Thus the
development of efficient processes for
reducing the molecular size of chitosan,
without altering its chemical structure, are of
great interest. Like other polysaccharides,

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