Arabinogalactan is a member of the carbohydrate family. It’s a natural polysaccharide that is made up of many galactose and arabinose sugar units linked together in a ratio of 6 galactose units to 1 arabinose unit. Arabinogalactan is a mixed branched polysaccharide with a a high degree of branching.
According to G.O. Aspinall, Arabinogalactans can be divided into two types:
arabino-4-galactans (type I)
arabino-3,6-galactans (type II).
Chemical formula of ARABINOGALACTAN:
The most common Arabinogalactans are those of the II type. They are of great practical importance. Arabinogalactans form the basis of angiosperms (e.g. acacia) and gymnosperms gums, especially larch gum (g. Larix).
As produced, larch Arabinogalactan is a dry, free-flowing powder, with a very slight pine-like odor and sweetish taste. The content of arabinogalactan reaches high purity degree (96-98%). Heartwood of some larch species contains up to 35% AG. The amount of Arabinogalactan in Siberian and Dahurian larch growing in Siberia comes up to 15%.
Arabinogalactan is extracted with water from portions of the larch tree that cannot be used by the lumber industry. The water-based extraction process is completely free of solvents. This altogether makes Arabinogalactan an ecologically friendly product.
AG can be used in a wide range of spheres, including medicine, veterinary medicine, pharmaceutical, cosmetic and printing industries, as well as printing and pulp production.
There are plenty of synonyms and abbreviations of Arabinogalactan: AG; Ara-6; d-galacto-l-arabinan; Fibre Soluble; Galactoarabinan; LAG; Larch Gum; Larix, etc.