Tamarind seed gum: Difference between revisions
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== Description == | == Description == | ||
A polysaccharide derived from the seeds of the tamarind tree, ''Tamarindus indica'', grown in India and southeast Asia but probably native to central Africa. Tamarind seeds contain about 65% [ | A polysaccharide derived from the seeds of the tamarind tree, ''Tamarindus indica'', grown in India and southeast Asia but probably native to central Africa. Tamarind seeds contain about 65% [[gum|gum]], 15-20% [[protein|protein]], 6% [[oil|oil]], and 3% [[ash%20%28residue%29|ash]]. The carbohydrate portion contains [[arabinose|arabinose]], [[galactose|galactose]], [[xylose|xylose]], galacturonic acid, and glucuronic acid. The gum dissolves in hot water to form a viscous solution that is high in [[sugar|sugar]]. Tamarind gum is often used as a substitute for fruit [[pectin|pectin]] and as an inexpensive textile sizing agent. It has also been used as a spray consolidant for flaking paint (Agrawal, 1984). | ||
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
''Tamarindus indica''; goma de semillas de tamarindo (Esp.); gomma di semi di tamarindo (It); Indian date | |||
== | == Physical and Chemical Properties == | ||
Insoluble in cold water. Soluble in hot water. | Insoluble in cold water. Soluble in hot water. | ||
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== | ==Resources and Citations== | ||
O.P. Agrawal, ''Conservation of Manuscripts and Paintings of Southeast Asia'', London: Butterworths,1984 | * O.P. Agrawal, ''Conservation of Manuscripts and Paintings of Southeast Asia'', London: Butterworths,1984 | ||
* G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971 Comment: p. 381 | * G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971 Comment: p. 381 | ||
Latest revision as of 15:43, 7 June 2022
Description
A polysaccharide derived from the seeds of the tamarind tree, Tamarindus indica, grown in India and southeast Asia but probably native to central Africa. Tamarind seeds contain about 65% gum, 15-20% protein, 6% oil, and 3% ash. The carbohydrate portion contains arabinose, galactose, xylose, galacturonic acid, and glucuronic acid. The gum dissolves in hot water to form a viscous solution that is high in sugar. Tamarind gum is often used as a substitute for fruit pectin and as an inexpensive textile sizing agent. It has also been used as a spray consolidant for flaking paint (Agrawal, 1984).
Synonyms and Related Terms
Tamarindus indica; goma de semillas de tamarindo (Esp.); gomma di semi di tamarindo (It); Indian date
Physical and Chemical Properties
Insoluble in cold water. Soluble in hot water.
| CAS | 39386-78-9 |
|---|
Resources and Citations
- O.P. Agrawal, Conservation of Manuscripts and Paintings of Southeast Asia, London: Butterworths,1984
- G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 381
- John S. Mills, Raymond White, The Organic Chemistry of Museum Objects, Butterworth Heineman, London, 2nd ed., 1994
- R. Newman, E. Farrell, 'House Paint Pigments', Paint in America , R. Moss ed., Preservation Press, New York City, 1994
- Book and Paper Group, Paper Conservation Catalog, AIC, 1984, 1989
- I.W. Cottrell, J.K. Baird, gums chapter