Research output: Contribution to journal › Article › peer-review
Flow birefringence of xanthan and other polysaccharide solutions. / Yevlampieva, Natalia P.; Pavlov, Georges M.; Rjumtsev, Evgenii I.
In: International Journal of Biological Macromolecules, Vol. 26, No. 4, 01.12.1999, p. 295-301.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Flow birefringence of xanthan and other polysaccharide solutions
AU - Yevlampieva, Natalia P.
AU - Pavlov, Georges M.
AU - Rjumtsev, Evgenii I.
N1 - Funding Information: The authors are grateful to the Russian Science Foundation (grants N96-15-97335 and N96-03-33847a) for financial support. We are thankful to D. Brant for a generous supply of xanthan sample.
PY - 1999/12/1
Y1 - 1999/12/1
N2 - A xanthan sample with molecular weight M=2.2x106 was investigated in three solvents: bidistilled water, 0.2 M aqueous NaCl and cadoxen by flow birefringence and viscometry methods in dilute solutions. It was shown that the optical shear rate coefficients of xanthan in aqueous and cadoxen media differ by two orders of magnitude. An estimation of xanthan optical anisotropy in different conformational states has been made and compared with values for other polysaccharides: dextran, pullulan, cellulose and chitosan. The process of denaturation and the flow birefringence of renaturated xanthan in aqueous solutions (after heat treatment at 121°C) have also been studied. Copyright (C) 1999 Elsevier Science B.V.
AB - A xanthan sample with molecular weight M=2.2x106 was investigated in three solvents: bidistilled water, 0.2 M aqueous NaCl and cadoxen by flow birefringence and viscometry methods in dilute solutions. It was shown that the optical shear rate coefficients of xanthan in aqueous and cadoxen media differ by two orders of magnitude. An estimation of xanthan optical anisotropy in different conformational states has been made and compared with values for other polysaccharides: dextran, pullulan, cellulose and chitosan. The process of denaturation and the flow birefringence of renaturated xanthan in aqueous solutions (after heat treatment at 121°C) have also been studied. Copyright (C) 1999 Elsevier Science B.V.
KW - Flow birefringence
KW - Optical anisotropy
KW - Renaturation
KW - Xanthan
UR - http://www.scopus.com/inward/record.url?scp=0032742982&partnerID=8YFLogxK
U2 - 10.1016/S0141-8130(99)00096-3
DO - 10.1016/S0141-8130(99)00096-3
M3 - Article
C2 - 10569292
AN - SCOPUS:0032742982
VL - 26
SP - 295
EP - 301
JO - International Journal of Biological Macromolecules
JF - International Journal of Biological Macromolecules
SN - 0141-8130
IS - 4
ER -
ID: 94257628