1.any of a large class of bitter-tasting, nitrogen-containing, alkaline ring compounds common in plants and including caffeine, morphine, nicotine, quinine, and strychnine. adj. 2.resembling an alkali; alkaline. [1825–35] al`ka•loi′dal,adj. ...
Alkaloids have been utilized from plants (as medication, or poison) for millennia. Today, where the pure structures of alkaloids can be identified, the official alkaloids definition is a cyclic compound that contains nitrogen, which is found in living organisms. Typically alkaloids are basic and ...
Alkaloids are most widely distributed among flowering plants and rarely occur in animals, simple vascular plants, mosses, ferns, fungi, and algae. Indole alkaloids are no exception to this general observation. Tryptophan is recognized as a main constituent of plant proteins and as a common ...
Belladona alkaloids are nitrogenous organic compounds present in various plants such as Atropa belladona or deadly nightshade, Brugmansia suaveolens or angel’s trumpet, and Hyoscyamus niger or henbane. These alkaloids have toxic anti-cholinergic effects on both central and peripheral nervous systems, ...
Definition and general properties Naturally occurring compounds in plants (mainly!) Nitrogen containing (heterocyclic) basic compounds With strong physiological effect Occurring in the form of salt with organic acids Common precursors Classification according to Origin Physiological effect Chemical structure Stru...
The meaning of GLYCOALKALOID is a bitter compound (such as solanine) occurring in various plants and consisting of a glycoside of an alkaloid. How to use glycoalkaloid in a sentence.
There are also some kinds found in animal kingdom such as the bufotenine found in toad, the hypoxanthine found in the earthworm. According to statistics, it has been found of alkaloids from at least 140 species of plants, especially in poppy, Menispermaceae, Solanaceae, Leguminosae, oleander,...
In fact the word “alkaloid” still has not yet strict and precise definition to now. Alkaloid is widely distributed in nature, especially in the plant kingdom. There are also some kinds found in animal kingdom such as the bufotenine found in toad, the hypoxanthine found in the earthworm....
Appendices, a listing of alkaloids, and plants containing alkaloids are all included, as are basic protocols of alkaloid analysis. Key Features Presents the ecological role of alkaloids in nature and ecosystems interdisciplinary Examines alkaloids from chemistry, biology and ecology viewpoints A single ...
Otheralkaloidswhichdonotconformwiththegeneraldefinitionaresyntheticcompoundsnotfoundinplantsbutareverycloselyrelatedtonaturalalkaloids. AlkaloidDescription Containsnitrogen-usuallyderivedfromanaminoacid. Bittertasting,generallywhitesolids(exception-nicotineisabrownliquid). ...