арабиногалактановой

Химические свойства

Polyarabinogalactan possesses a soft, balsamic terpenic odor, reminiscent of fresh conifer resins and cones. It is a turpentine type of a natural oleoresin. It occurs as a physiological secretion in the larch tree, Larix decidua, a conifer.

Вхождение

Reported found in the secretion of the larch tree, Larix deciduas

Использование

Arabinogalactan is a gum, being the plant extract obtained from larch trees. it is soluble in hot and cold water, the water solutions up to 60% being fluid and above 60% forming a thick paste. it is stable over a wide ph range and is relatively unaffected by electrolytes. its limited uses include dressings and pudding mixes. it is also termed larch gum.

Подготовка

Natural turpentine is obtained from tapping or scraping the wounds on a variety of coniferous trees. Separating the essential oil and solid content of crude turpentine makes pure gum spirits. The crude gum is heated, refined and separated by distillation into gum spirits and rosin.

Определение

A water-soluble polysaccharide extracted from timber of the western larch trees. It is a complex, highly branched polymer of arabinose and galactose.

Профиль безопасности

When heated to decomposition it emits acrid smoke and irritating fumes.