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Title
Molar mass characteristics of cherry tree exudate gums of different seasons
Authors
GINA AMARIOAREI MARIA LUNGU* SORIN CIOVICA
Received
December 5, 2010
Published
Volume 46, Issue 9-10 November-December
Keywords
exudate Prunus gums, SEC/GPC chromatography, molecular weight, polydispersity
Abstract
The polysaccharide components of cherry tree exudate gum (Prunus cerasus, Prunus avium) belong to the
arabinogalactan group. There are structural variations in the proportion of monosaccharides, molar ratio and glycosidic
linkages, which determine the properties and use of exudate gums. In this paper, Size Exclusion Chromatography
(SEC/GPC) is applied for determining polydispersity and molecular mass (Mw) of the cherry tree exudate gum of P.
avium, P. cerasus and egg plum (P. domestica).
The intrinsic viscosity values of cherry tree EAL gum solutions were also obtained, confirming the existence of a
compact internally crosslinked structure of the exudate gum polysaccharide.
The results of Brookfield viscosity characterization outline the essential characteristics of the cherry gum exudates.
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