Atomic force microscopy of thermally renatured xanthan with low molar mass

It is widely accepted that native xanthan forms a double helical structure and that it loses this structure upon heating (denaturation) and recovers the double helical structure upon cooling its solution (renaturation). The structure of renatured xanthan depends on the concentration of both xanthan...

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Bibliographic Details
Published inPolymer journal Vol. 47; no. 3; pp. 282 - 285
Main Authors Matsuda, Yasuhiro, Sugiura, Fumitada, Mays, Jimmy Wayne, Tasaka, Shigeru
Format Journal Article
LanguageEnglish
Published London Nature Publishing Group UK 01.03.2015
Nature Publishing Group
Society of Polymer Science
Subjects
639/638/455/953
Atomic force microscopy
Atomic properties
Biomaterials
Bioorganic Chemistry
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
MATERIALS SCIENCE
Polymer Sciences
Surfaces and Interfaces
Thin Films
Xanthan
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Summary:It is widely accepted that native xanthan forms a double helical structure and that it loses this structure upon heating (denaturation) and recovers the double helical structure upon cooling its solution (renaturation). The structure of renatured xanthan depends on the concentration of both xanthan and added salt, and temperature. Branched-rods and hairpin-shaped structures were observed by AFM depending on the conditions of denaturation and renaturation. The structural change observed by atomic force microscopy well agrees with the models proposed in our previous study.
Bibliography:USDOE Office of Science (SC)
AC05-00OR22725
ISSN:0032-3896
1349-0540
DOI:10.1038/pj.2014.102