9036-66-2 Usage
Description
Arabinogalactan, also known as larch gum, is a water-soluble polysaccharide extracted from the timber of western larch trees. It is a complex, highly branched polymer of arabinose and galactose. As a dry, light-tan powder, it is readily soluble in hot and cold water, with solutions being fluid up to 60% and forming a thick paste above 60% concentration. Arabinogalactan is stable over a wide pH range and relatively unaffected by electrolytes. It possesses a soft, balsamic terpenic odor, reminiscent of fresh conifer resins and cones, and occurs as a physiological secretion in the larch tree, Larix decidua.
Uses
Used in Pharmaceutical Industry:
Arabinogalactan is used as an immune stimulant and antineoplastic agent, contributing to the enhancement of the immune system and the inhibition of tumor growth.
Used in Cosmetics and Personal Care Industry:
Arabinogalactan, specifically as galactoarabinan (GA), is a multi-functional ingredient with humectant and exfoliating properties. In aqueous solutions, GA can deposit a clear film, creating or helping to create an occlusive environment, preventing transepidermal water loss, and enhancing the functionality of a formulation’s active ingredients. In humid conditions, GA acts as a moisture binder, and in dry conditions, it is able to retain moisture, further inhibiting moisture loss from the skin. Additionally, GA can improve particle dispersion and the uniformity of emulsion droplets, resulting in a more stable emulsion and potentially more efficacious formulation, particularly in the case of sunscreens. In vitro and in vivo studies indicate possible benefits to the immune system, given an ability to enhance Langerhans cell proliferation and cytokine production. GA has been shown to boost AHA exfoliation activity without increasing skin irritation and exhibits its own exfoliant properties independent of AHA presence in a formulation, thereby helping reduce the appearance of fine lines and wrinkles.
Used in Food Industry:
Arabinogalactan is used as a gum, being the plant extract obtained from larch trees. Its limited uses include dressings and pudding mixes due to its solubility in hot and cold water and its ability to form thick pastes at higher concentrations.
Occurrence:
Arabinogalactan is reported to be found in the secretion of the larch tree, Larix decidua.
Preparation
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.
Biochem/physiol Actions
Dietary fiber that enhances immune system function by stimulating natural killer (NK) cell activity.
Safety Profile
When heated to
decomposition it emits acrid smoke and
irritating fumes.
Check Digit Verification of cas no
The CAS Registry Mumber 9036-66-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 9,0,3 and 6 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 9036-66:
(6*9)+(5*0)+(4*3)+(3*6)+(2*6)+(1*6)=102
102 % 10 = 2
So 9036-66-2 is a valid CAS Registry Number.