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The effect of neutral sugar distribution on the dilute solution conformation of sugar beet pectin
被引:38
|作者:
Morris, Gordon A.
[1
,2
]
Ralet, Marie-Christine
[2
]
机构:
[1] Univ Huddersfield, Sch Appl Sci, Dept Chem & Biol Sci, Huddersfield HD1 3DH, W Yorkshire, England
[2] INRA, Biopolymeres Interact Assemblages UR1268, F-44300 Nantes, France
关键词:
Sugar beet (Beta vulgaris) pectin;
Neutral sugar distribution;
Conformation;
Persistence length (L-p);
Mass-per-unit length (M-L);
GLOBAL HYDRODYNAMIC ANALYSIS;
MOLECULAR FLEXIBILITY;
INTRINSIC-VISCOSITY;
DELIVERY-SYSTEMS;
CITRUS PECTINS;
POLYSACCHARIDES;
MACROMOLECULES;
SEDIMENTATION;
SCATTERING;
SOLVENT;
D O I:
10.1016/j.carbpol.2012.02.020
中图分类号:
O69 [应用化学];
学科分类号:
081704 ;
摘要:
A partially degraded sugar beet pectin (C) was found to be heterogeneous in composition with neutral sugar-rich fractions of both high and low hydrodynamic radii. A neutral sugar-poor fraction was found at intermediate hydrodynamic radii. In this paper we demonstrate using both conformation zoning and the global analysis method that fractions of sugar beet pectin rich in neutral sugar side chains (RG-I regions) are less flexible than those rich in galacturonic acid (HG regions). (C) 2012 Elsevier Ltd. All rights reserved.
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页码:1488 / 1491
页数:4
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