Synonym: Gum karaya
from sterculia tree,
Properties
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Related Categories
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Description
Other
Notes
Believed to be a partially acetylated polymer of
galactose, rhamnose, and glucuronic acid with a M.W. of approx. 9,500,000.
Application
Karaya gum may be used for the development of gastro
intestinal tract drug delivery vehicles, mucoadhesive sustained release drug
delivery and noneffervescent floating drug delivery systems in combination with
alginate
Gum karaya is a vegetable gum produced
as an exudate by trees of the genus Sterculia. Chemically, gum karaya is an
acid polysaccharide composed
of the sugars galactose, rhamnose and galacturonic acid.
Detailed description
It is used as a thickener and emulsifier in foods, as
a laxative, and as a denture adhesive. It
is also used to adulterate Gum tragacanth due to their similar
physical characteristics. As a food additive it has E number E416.
Gum karaya can be obtained from the tree of the same
name, Sterculia urens.
It is a valuable substance and is traditionally tapped by cutting or peeling back the bark, or by
making deep gashes at the base of the trunk with an axe. These crude methods of
extraction often resulted in the death of the tree, but it has been found that
application of the plant growth regulator ethephon stimulates the production of gum, and
when used in carefully controlled amounts, increases gum yield and enhances
healing of the wounds and survival of the tree.
Packaging
500 g in poly bottle
PRICE
$201.08/KG OR $91.4/IB
For more information:
mobile: +2348039721941
contact person: emeaba uche
e-mail: emeabau@yahoo.com
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