Elastic protein-based polymers a step towards plasticity: Thermal stability of glu-containing co-polypeptides as analyzed by differential scanning calorimetry.

Ramesh Baba, A. and Channe Gowda, D. and Udaya Sankar, K. (2006) Elastic protein-based polymers a step towards plasticity: Thermal stability of glu-containing co-polypeptides as analyzed by differential scanning calorimetry. International Journal of Peptide Research and Therapeutics, 11. pp. 185-193.

PDF IntlJPeptResTher11185-193.pdf Restricted to Registered users only Download (183kB) | Request a copy

Abstract

Plastic protein-based polymers with the same conformational potential, but with different degree of thermal stability have been synthesized and thermally characterized by differential scanning calorimetry to provide the conception of behavior of thermoplasticity. Dramatic increase in the temperature between melting and decomposition transitions has been observed, upon inclusion of glutamic acid residue into the hydrophobic sequence of FVGVP. Glucontaining co-polymers of IVGVP showed a markedly different behavior by exhibiting exothermic crystallization transition before melting shows the typical thermoplasticity. Secondary structure in trifluoroethanol for all the polymers show, a well behaved a-helix as evident from the circular dichroism studies, in association with a significant amount of random structure contributes to extended stability.

Item Type:	Article
Uncontrolled Keywords:	Plastic protein-based polymers; Thermal stability; DSC; Thermoplasticity
Subjects:	600 Technology > 08 Food technology > 11 Food Biochemistry 600 Technology > 08 Food technology > 08 Food Chemistry
Divisions:	Food Engineering
Depositing User:	Users 197 not found.
Date Deposited:	01 Jun 2011 06:03
Last Modified:	30 Jun 2015 12:19
URI:	http://ir.cftri.res.in/id/eprint/10048

Actions (login required)

View Item