Acacia senegal (gum)
m (moved Acacia senegal (dried brittle glassy gummy exudation) to Acacia senegal (gum): name too long) |
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| characteristics=Shows no structure under the microscope. Reduce some of the gum to fine powder and dissolve about five grams in 10 parts water; centrifuge for a short time and examine the sediment for impurities which are usually present, consisting of trace of starch, some dirt and bits of vegetable tissue. | | characteristics=Shows no structure under the microscope. Reduce some of the gum to fine powder and dissolve about five grams in 10 parts water; centrifuge for a short time and examine the sediment for impurities which are usually present, consisting of trace of starch, some dirt and bits of vegetable tissue. | ||
| ash=Ash should not exceed 3.6 percent. | | ash=Ash should not exceed 3.6 percent. | ||
| − | | | + | | adulterants=India gum is the most common adulterant of gum acacia. Old gum acacia turns yellowish amber color and increases in brittleness. The impurities are generally negligable and should not exceed 1 per cent. |
| }} | | }} | ||
Revision as of 22:10, 14 January 2011
Acacia senecal dried brittle glassy gummy exudation. AKA Gum Arabic.
General Characteristics Shows no structure under the microscope. Reduce some of the gum to fine powder and dissolve about five grams in 10 parts water; centrifuge for a short time and examine the sediment for impurities which are usually present, consisting of trace of starch, some dirt and bits of vegetable tissue.
Texture A meal. Should not be lumpy or in sticky masses.
Color White to nearly snow white.
Scent Nearly odorless.
Flavor Mucilaginous taste, sticky.
Ash Content Ash should not exceed 3.6 percent.
Reported Adulterants India gum is the most common adulterant of gum acacia. Old gum acacia turns yellowish amber color and increases in brittleness. The impurities are generally negligable and should not exceed 1 per cent.
Source: Schneider, A. (1921) The Microanalysis of Powdered Vegetable Drugs, 2nd ed. [1]
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