Cinnamomum aromaticum (bark)

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Contents

Nomenclature

Cinnamomum aromaticum Nees   Lauraceae  
Syn. Cinnamomum cassia auct.  
Standardized common name (English): cassia  
Pinyin name(s): rou gui; rou gui (bark); gui zhi (twig)

Botanical Voucher Specimen

Organoleptic Characteristics

  

Color Cinnamon brown (reddish brown). 

Scent Fragrant, aromatic, very characteristic. 

Flavor Sweet, pungent, somewhat astringent.

Source: Schneider, A. (1921) The Microanalysis of Powdered Vegetable Drugs, 2nd ed. [1]

Macroscopic Characteristics

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PlantaPhile - 3099.jpg
Source: PlantaPhile[2]

Microscopic Characteristics

Cassia (bark) (Cinnamomum aromaticum) (Cinnamomum cassia auct.)Rather short, thick walled bast cells sclerenchyma with cell walls unequally thickened parenchyma cells with compound starch granules; cells with numerous small prismatic crystals; large resin bearing cells; cells of outer bark suberized and with reddish brown contents. Cassia bark contains relatively more starch than do the other varieties of cinnamon barks and relatively less bast tissue.

Source: Schneider, A. (1921) The Microanalysis of Powdered Vegetable Drugs, 2nd ed. [3]


Microanalysis powdered vegetable google ver cinnamon cassia.png
Source: Schneider, A. (1921) The Microanalysis of Powdered Vegetable Drugs, 2nd ed.[4]

High Performance Thin Layer Chromatographic Identification

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Cinnamomum aromaticum HPTLC UV 254 nm

Cassia (bark) (Cinnamomum aromaticum Nees)

Lane Assignments Lane 2(3μl) Cinnamomum aromaticum / Cinnamomum cassia (bark); Lane 3(3μl) Cinnamomum aromaticum / Cinnamomum cassia (bark); Lane 6(3μl) Cinnamomum verum (bark); Lane 7(3μl) Cinnamomum verum (bark) authenticated by macroscopic, microscopic &/or TLC studies according to the reference source cited below, held at Alkemists Pharmaceuticals, Costa Mesa, CA. 

Stationary Phase Silica gel 60, F254, 10 x 10 cm HPTLC plates 

Mobile Phase toluene: ethyl acetate [9.5/0.5] 

Sample Preparation Method 0.3g+3mL CH3OH sonicate/heat @~50° C ~ 1/2 hr. 

Detection Method Image 1 UV 254 nm; Image 2 10% Ethanolic KOH Reagent 365 nm 

Reference see Method Developed by Alkemist Laboratories

Source: Elan M. Sudberg, Alkemist Laboratories [5]

Supplementary Information

Sources

  1. Schneider, A. (1921) The Microanalysis of Powdered Vegetable Drugs, 2nd ed.
  2. PlantaPhile http://plantaphile.com/
  3. Schneider, A. (1921) The Microanalysis of Powdered Vegetable Drugs, 2nd ed.
  4. Schneider, A. (1921) The Microanalysis of Powdered Vegetable Drugs, 2nd ed.
  5. Elan M. Sudberg, Alkemist Laboratories http://www.alkemist.com
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