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G9752 Sigma-Aldrich

Gum arabic from acacia tree

branched polysaccharide

Synonym: Acacia gum

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Description

General description

Gum arabic from acacia tree is extracted from the branches of Acacia senegal and Acacia seyal trees. It is an edible dried gummy exudate. Gum Arabic has high solubility and is used in food industry as a stabilizer, emulsifier, flavouring agent, thickener and surface-finishing agent. It initiates turbidity or hinders sugar crystallization. Gum arabic inhibits color pigmentation and protein precipitation in wine production.

Application

Gum arabic from acacia tree has been used:
• as an emulsifying agent to determine lipase activity in shrimps
• for the visualization of mossy fiber sprouting
• as an immunogen and for coating microtitre wells in plate-trapped antigen ELISAs (PTA-ELISAs)
• for silver enhancement for immunohistochemistry
• as a component for Timm′s staining solution
• in nitrocellulose-based soil adhesion assay
• to separate few-layer graphene (FLG) from bulk graphite layers

Packaging

1 kg in poly bottle

500 g in poly bottle

Other Notes

Believed to be a branched polymer of galactose, rhamnose, arabinose, and glucuronic acid as the calcium, magnesium, and potassium salts with a mol. wt. of approx. 250,000.

Safety & Documentation

Safety Information

Personal Protective Equipment 
RIDADR 
NONH for all modes of transport
WGK Germany 
2
RTECS 
CE5945000

Documents

Certificate of Analysis (COA)

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Certificate of Origin (COO)

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Frequently Asked Questions

Which document(s) contains shelf-life or expiration date information for a given product?
If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.
How do I get lot-specific information or a Certificate of Analysis?
The lot specific COA document can be found by entering the lot number above under the "Documents" section.
How do I find price and availability?
There are several ways to find pricing and availability for our products.Once you log onto our website, you will find the price and availability displayed on the product detail page.You can contact any of our Customer Sales and Service offices to receive a quote. USA customers: 1-800-325-3010 orview local office numbers.
What is the Department of Transportation shipping information for this product?
Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
Can Product G9752, Gum arabic from acacia tree, be used to extract nuclei from ciliate cells?
This product has been cited for use in a lysis buffer to extract nuclei from ciliate cells.The reference is J. Eukaryotic Microbiology, 43(3), 198-202 (1996).
Can you provide a description of the polysaccharide in Gum arabic from acacia tree, Product G9752?
The polysaccharide in gum arabic is branched with a main chain of (1->3) linked β-D-galactopyranosyl units, with side chains of (1->3) β-D-galactopyranosyl units joined to it by (1->6) links. The side chains are two to five units in length. Both main chains and side chains have attached units of α-L-arabinofuranosyl, α-L-rhamnopyranosyl, β-D-glucuronopyranosyl and 4-O-methyl-β-D-glucuronopyranosyl units.
What is the solubility of Product G9752, Gum arabic from acacia tree?
According to The Merck Index, 12th ed., Entry# 11, gum arabic is insoluble in alcohols. It is almost completely soluble in twice its weight of water. It is soluble in glycerol and in propylene glycol, but prolonged heating may be necessary for complete solution.
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Protocols & Articles
Peer-Reviewed Papers
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