Acacia senegal (gum)
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− | {{DISPLAYTITLE:'' Acacia senegal'' (gum) }} | + | {{DISPLAYTITLE:'' Acacia senegal'' (gum) }} {{askbox|herb=''Acacia senegal''}} |
=Nomenclature= | =Nomenclature= | ||
{{nomenclature | binomial= Acacia senegal | {{nomenclature | binomial= Acacia senegal | ||
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|notes= The standard common name of the dried gummy exudate of stems and branches of ''A. senegal'' is gum arabic. It is also known as acacia gum or Senegal gum.}} | |notes= The standard common name of the dried gummy exudate of stems and branches of ''A. senegal'' is gum arabic. It is also known as acacia gum or Senegal gum.}} | ||
=Botanical Voucher Specimen= | =Botanical Voucher Specimen= | ||
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+ | {{Media3 |cat=Voucher | ||
+ | |||
+ | | source=MOBOT, Tropicos.org | ||
+ | | mainimage=Acacia_senegal_Tropicos_100191277.jpg | ||
+ | | companyimage=TropicosLogo.gif | ||
+ | | companyURL=http://www.tropicos.org/Image/100191277 | ||
+ | | reference=Tropicos.org. Missouri Botanical Garden. 25 Mar 2014 <http://www.tropicos.org/Image/100191277> | ||
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+ | | companyimage2=Kewlogo.gif | ||
+ | | companyURL2=http://specimens.kew.org/herbarium/K000791160 | ||
+ | |image2=Acacia senegal Kew imageBarcode=K000791160 369473.jpg | ||
+ | |source2=Royal Botanic Gardens, Kew. | ||
+ | |||
+ | |companyimage3=Kewlogo.gif | ||
+ | |companyURL3=http://specimens.kew.org/herbarium/K000791161 | ||
+ | |image3=Acacia senegal Kew imageBarcode=K000791161 369476.jpg | ||
+ | |source3=Royal Botanic Gardens, Kew. | ||
+ | | }} | ||
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=Organoleptic Characteristics= | =Organoleptic Characteristics= | ||
+ | {| border=1 | ||
+ | | | ||
+ | {{Macroscopy | source=Schneider, A. (1921) The Microanalysis of Powdered Vegetable Drugs, 2nd ed. | ||
+ | |description= | ||
+ | | texture=A meal. Should not be lumpy or in sticky masses. | ||
+ | | color=White to nearly snow white. | ||
+ | | flavor=Mucilaginous taste, sticky. | ||
+ | | scent=Nearly odorless.}} | ||
+ | |} | ||
=Macroscopic Characteristics= | =Macroscopic Characteristics= | ||
+ | {| border=1 | ||
+ | | | ||
{{Macroscopy | source=United States Dispensatory (1918) | {{Macroscopy | source=United States Dispensatory (1918) | ||
| description=The most important of the gum-yielding Acacias is the official ''A. Senegal'' Willd. | | description=The most important of the gum-yielding Acacias is the official ''A. Senegal'' Willd. | ||
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The gum of the acacias exudes spontaneously from the bark, and hardens on exposure; but incisions are sometimes made in order to facilitate the exudation. The gum is said also to be found immediately under the bark, where it is sometimes collected in regular cavities. It is formed within the plant by metamorphosis of the cells of the inner bark. The tissues involved are chiefly those of the sieve and the cambiform cells. | The gum of the acacias exudes spontaneously from the bark, and hardens on exposure; but incisions are sometimes made in order to facilitate the exudation. The gum is said also to be found immediately under the bark, where it is sometimes collected in regular cavities. It is formed within the plant by metamorphosis of the cells of the inner bark. The tissues involved are chiefly those of the sieve and the cambiform cells. | ||
}} | }} | ||
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=Microscopic Characteristics= | =Microscopic Characteristics= | ||
+ | {| border=1 | ||
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{{Microscopy | source=Schneider, A. (1921) The Microanalysis of Powdered Vegetable Drugs, 2nd ed. | {{Microscopy | source=Schneider, A. (1921) The Microanalysis of Powdered Vegetable Drugs, 2nd ed. | ||
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| description=''Acacia senecal'' dried brittle glassy gummy exudation. AKA Gum Arabic. | | description=''Acacia senecal'' dried brittle glassy gummy exudation. AKA Gum Arabic. | ||
| texture=A meal. Should not be lumpy or in sticky masses. | | texture=A meal. Should not be lumpy or in sticky masses. | ||
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| 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. | | 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. | ||
| }} | | }} | ||
+ | |||
+ | {{Media |cat=Microscopy | ||
+ | | source=Schneider, A. (1921) The Microanalysis of Powdered Vegetable Drugs, 2nd ed. | ||
+ | | mainimage=Microanalysis_powdered_vegetable_p_202_google_ver_acacia.png }} | ||
+ | |} | ||
=High Performance Thin Layer Chromatographic Identification= | =High Performance Thin Layer Chromatographic Identification= | ||
=Supplementary Information= | =Supplementary Information= | ||
=Sources= | =Sources= | ||
<references /> | <references /> |
Latest revision as of 21:18, 18 August 2014
Contents |
Nomenclature
Acacia senegal (L.) Willd. Fabaceae
Standardized common name (English): gum arabic tree
Botanical Voucher Specimen
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Organoleptic Characteristics
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Macroscopic Characteristics
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Microscopic Characteristics
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High Performance Thin Layer Chromatographic Identification
Supplementary Information
Sources
- ↑ MOBOT, Tropicos.org http://www.tropicos.org/Image/100191277
- ↑ Royal Botanic Gardens, Kew. http://specimens.kew.org/herbarium/K000791160
- ↑ Royal Botanic Gardens, Kew. http://specimens.kew.org/herbarium/K000791161
- ↑ Schneider, A. (1921) The Microanalysis of Powdered Vegetable Drugs, 2nd ed.
- ↑ United States Dispensatory (1918)
- ↑ Schneider, A. (1921) The Microanalysis of Powdered Vegetable Drugs, 2nd ed.
- ↑ Schneider, A. (1921) The Microanalysis of Powdered Vegetable Drugs, 2nd ed.