Morris, Gordon, Butler, S. N. G., Foster, T. J., Jumel, K. and Harding, S. E. (1999) Elevated-temperature analytical ultracentrifugation of a low-methoxy polyuronide. Progress in Colloid and Polymer Science, 113. pp. 205-208. ISSN 0340-255XMetadata only available from this repository.
Relatively little has been published on the ultracentrifuge behaviour of macromolecular solutions at elevated temperature (> 40Â°C). In this study we look at the sedimentation velocity behaviour of one particular food grade polyuronide - pectin - from 20Â°C to 60Â°C in a specially adapted Model E ultracentrifuge. Reduced specific viscosity measurements were also determined over the same temperature range. A small decrease in the reduced viscosity, together with a similar increase in s20,w, suggests that the pectin chain is more flexible at elevated temperatures, but that the overall molecular integrity remains intact. Â© Springer-Verlag 1999.
|Uncontrolled Keywords:||Beckman Model E adaptation Size exclusion chromatography-multiangle laser light scattering Viscometry|
|Subjects:||Q Science > QD Chemistry|
|Schools:||School of Applied Sciences|
Language of Original Document: English
|Depositing User:||Gordon Morris|
|Date Deposited:||19 May 2011 12:00|
|Last Modified:||04 Jul 2011 13:37|
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