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Gum arabic, Powder, derived from the trunk exudate of the genus Acacia

Typical Properties
CAS 9000-01-5
Catalog ACM9000015-10
Density 1.35 g/mL
Solubility Water soluble. Aqueous solution is acidic to litmus.
Appearance Powder
Storage Sealed in dry, Room Temp
Biological Source Black Locust
Color Light yellow to brown
EC Number 232-519-5
Grade Reagent Grade
MDL Number MFCD00081264
pH 4.1-4.8
Quality Level 200
Shipping Ambient
Stability Stable. Incompatible with alcohols, oxidizing agents.
Overview
Description

Gum arabic (GA) is a mixture of polysaccharides and glycoproteins (GP) with properties of glue and adhesive. Gum arabic readily dissolves in water, forming a clear solution ranging in color from very pale yellow to orange-brown at a pH of about 4.5. GA is used as an emulsifier and thickener in icings, fillings, chewing gum and other confections. GA was more effective in inhibiting non-enzymatic browning and as a color preservative in dehydrated tomatoes. The addition of GA significantly improved the color stability of anthocyanins; the efficacy decreased with increasing concentrations due to changes in the conformation of the gum molecules that hindered their contact with anthocyanins. Gum arabic was found to be an excellent color preservative and inhibitor of non-enzymatic browning of dehydrated tomatoes during storage.

Features

·High water solubility and low solution viscosity
·Strong acid, emulsification and thermal stability
·Good compatibility
·Functional and versatile

Application

·Food industry: (1) role of protective colloid or stabilizer; (2) adhesiveness of aqueous solution; (3) thickening
·Medicine: Gum arabic is mainly used as a suspending and emulsifying agent in oral and topical pharmaceutical preparations
·Printing industry: for wiping printing layouts
·Adhesives: used for bonding paper, wood, ceramics, glass, etc.