Coriandrum sativum (seed)
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=Introduction= | =Introduction= | ||
=Macroscopic Entries= | =Macroscopic Entries= | ||
+ | {{Macroscopy | source=United States Dispensatory (1918) | ||
+ | | description=''Coriandrum sativum'' is an annual plant, with an erect branching stem | ||
+ | rising about two feet, and furnished with compound leaves, of which the | ||
+ | upper are thrice ternate, with linear pointed leaflets, the lower pinnate, | ||
+ | with the pinnae cut into irregular serrated lobes like those of parsley. | ||
+ | The flowers are white or rose-colored, and in compound terminal | ||
+ | umbels; the fruit globular, and composed of two concavo-convex | ||
+ | mericarps. | ||
+ | The flowers appear in June, and the fruit ripens | ||
+ | in August. It is a singular fact that all parts of the fresh plant are | ||
+ | extremely fetid when bruised, while the fruit becomes fragrant by | ||
+ | drying. | ||
+ | |||
+ | Mericarps usually coherent; cremocarp nearly globular, from 3 to 5 mm. | ||
+ | in diameter; externally light | ||
+ | brown or rose colored; summit with 5 calyx teeth and a short | ||
+ | stylopodium, each mericarp with 5 prominent, straight, longitudinal, | ||
+ | primary ribs and 4 indistinct, undulate secondary ribs; mericarps easily | ||
+ | separated, deeply concave on the inner or commissural surface and | ||
+ | showing in transverse section 2 vittae (oil tubes) on the inner surface of | ||
+ | each. Under the microscope, sections of Coriander show an epidermis of | ||
+ | small cells with thick walls; a layer of several rows of thin-walled more | ||
+ | or less collapsed parenchyma separated from a broad zone of strongly | ||
+ | lignified, sclerenchymatous fibers which extend as a continuous ring in | ||
+ | the mesocarp of each of the mericarps; 2 or 3 layers of large, | ||
+ | tangentially elongated, thin-walled parenchyma cells, frequently with | ||
+ | numerous large lysigenous intercellular spaces; inner epidermis of large | ||
+ | tabular cells, the inner yellowish walls being considerably thickened | ||
+ | and closely coherent to the brownish cells of the seed-coat; commissural | ||
+ | surface with 2 large, elliptical vittae; the cells of the pericarp separated | ||
+ | from the seed-coat and forming a large elliptical cavity; endosperm | ||
+ | distinctly reniform in outline and consisting of tabular or polygonal | ||
+ | thick-walled cells containing numerous large aleurone grains each with | ||
+ | a rosette aggregate or prism of calcium oxalate. The powder is light | ||
+ | brown, consisting chiefly of fragments of endosperm and lignified | ||
+ | tissues of the pericarp; calcium oxalate crystals numerous, | ||
+ | from 0.003 to 0.01 mm. in diameter, mostly in rosette aggregates, either | ||
+ | isolated or in aleurone grains; sclerenehymatous fibers irregularly | ||
+ | curved, having thick, yellowish, lignified walls and numerous simple | ||
+ | pores; numerous globules of fixed oil; fragments of light yellow vittaa | ||
+ | few, associated with elongated polygonal epidermal cells. | ||
+ | |||
+ | Nearly globular, about five millimetres in diameter, uniform brownishyellow | ||
+ | in color, and glabrous. Mericarps usually closely united, and crowned by the calyx teeth and stylopod. Primary ridges wavy and | ||
+ | inconspicuous; secondary ridges straight and more prominent. In | ||
+ | transverse section, two vittas on the commissural surface of each | ||
+ | mericarp. Aromatic odor, especially when bruised; taste agreeable. | ||
+ | |||
+ | }} | ||
+ | |||
=Microscopic Entries= | =Microscopic Entries= | ||
{{Microscopy | source=Elan M. Sudberg, Alkemist Laboratories | {{Microscopy | source=Elan M. Sudberg, Alkemist Laboratories |
Revision as of 20:12, 31 December 2013
Contents |
Introduction
Macroscopic Entries
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Microscopic Entries
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HPTLC Entries
Coriander (seed) (Coriandrum sativum) Lane Assignments Lanes, from left to right (Track, Volume, Sample):
Reference materials used here have been authenticated by macroscopic, microscopic &/or TLC studies according to the reference source cited below held at Alkemists Laboratories, 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 0.5g+5ml dichloromethane, sncte/cntrfge/dcnt, evap dry (N2), qs 1.0 ml Toluene Detection Method Vanillin/H2SO4 Reagent -> 110° C 5 min -> UV 365 nm Reference see Herbal Drugs and Phytopharmaceuticals,Max Wichtl, 3rd ed., 2004
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Other Points of Interest
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