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.