Manihot esculenta (root)

From AHPA Botanical Identity References Compendium
(Difference between revisions)
Jump to: navigation, search
(add askbox)
(add USD 1918 information (macroscopic/microscopic))
Line 27: Line 27:
  
 
=Macroscopic Characteristics=
 
=Macroscopic Characteristics=
 +
{| border=1
 +
|
 +
{{Macroscopy | source=United States Dispensatory (1918)
 +
| description=Tapioca is in irregular, hard, white, rough grains, possessing little taste, partially soluble in cold water, and affording a fine blue color when iodine is added to its filtered solution. The partial solubility in cold water is owing to the rupture of the starch granules by heat. }}
 +
|}
 +
 
=Microscopic Characteristics=
 
=Microscopic Characteristics=
 +
{| border=1
 +
|
 +
{{Macroscopy | source=United States Dispensatory (1918)
 +
| description=Examined under the microscope, the granules appear somewhat plano-convex or bell-shaped and more or less compound. The individual grains vary from 0.006 to 0.030 mm. in diameter and have a distinct central circular or radiating cleft. They polarize light strongly, showing a distinct cross. }}
  
 
{{Media2 |cat=Microscopy | source=Elan M. Sudberg, Alkemist Laboratories
 
{{Media2 |cat=Microscopy | source=Elan M. Sudberg, Alkemist Laboratories
Line 41: Line 51:
 
             | reference=Powdered Vegetable Drugs, Jackson, B., 1968
 
             | reference=Powdered Vegetable Drugs, Jackson, B., 1968
 
             | }}
 
             | }}
−
 
+
|}
 
=High Performance Thin Layer Chromatographic Identification=
 
=High Performance Thin Layer Chromatographic Identification=
  

Revision as of 18:27, 31 March 2015

AHPA recognizes other valuable resources exist regarding the identity of Manihot esculenta.

To submit a suggestion or contribution, please contact Merle Zimmermann.

Contents

Nomenclature

Manihot esculenta Crantz   Euphorbiaceae  
Syn. Janipha manihot (L.) Kunth; Jatropha manihot L.  
Standardized common name (English): cassava

Botanical Voucher Specimen

bottomright

Manihot esculenta Tropicos 100000722 (S).jpg
Source: MOBOT, Tropicos.org[1]

Organoleptic Characteristics

Macroscopic Characteristics

Tapioca is in irregular, hard, white, rough grains, possessing little taste, partially soluble in cold water, and affording a fine blue color when iodine is added to its filtered solution. The partial solubility in cold water is owing to the rupture of the starch granules by heat.

Source: United States Dispensatory (1918) [2]

Microscopic Characteristics

Examined under the microscope, the granules appear somewhat plano-convex or bell-shaped and more or less compound. The individual grains vary from 0.006 to 0.030 mm. in diameter and have a distinct central circular or radiating cleft. They polarize light strongly, showing a distinct cross.

Source: United States Dispensatory (1918) [3]
bottomright bottomright

Manihot esculenta - Alkemist Laboratories.jpg
Starch granules of various sizes from 5-30 µm in diameter rounded and sub spherical observed with an irregularly stellate cleft at 400x with Acidified Chloral Hydrate Glycerol Solution.
Source: Elan M. Sudberg, Alkemist Laboratories[4]

Manihot esculenta-1 - Alkemist Laboratories.jpg
Starch granules of various sizes from 5-30 µm in diameter rounded and sub spherical seen under polarized light showing a linear hilum at 400x with Acidified Chloral Hydrate Glycerol Solution.
Source: Elan M. Sudberg, Alkemist Laboratories[5]

High Performance Thin Layer Chromatographic Identification

Supplementary Information

Sources

  1. ↑ MOBOT, Tropicos.org http://www.tropicos.org/Image/100000722
  2. ↑ United States Dispensatory (1918)
  3. ↑ United States Dispensatory (1918)
  4. ↑ Elan M. Sudberg, Alkemist Laboratories http://www.alkemist.com
  5. ↑ Elan M. Sudberg, Alkemist Laboratories http://www.alkemist.com
Retrieved from "http://sharepointucs.houstontx.gov/index.php?title=Manihot_esculenta_(root)&oldid=6827"
Personal tools
MediaWiki Appliance - Powered by TurnKey Linux