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Mangiferin was first isolated from the leaves and bark of Mangifera indica (the mango tree). [1] It can also be extracted from mango peels and kernels, [2] [3] Iris unguicularis, [4] Anemarrhena asphodeloides rhizomes [5] and Bombax ceiba leaves. [6]
Pharmacognosy is the study of crude drugs obtained from medicinal plants, animals, fungi, and other natural sources. [1] The American Society of Pharmacognosy defines pharmacognosy as "the study of the physical, chemical, biochemical , and biological properties of drugs, drug substances, or potential drugs or drug substances of natural origin ...
Theophylline extended-release tablets in Japan. Theophylline, also known as 1,3-dimethylxanthine, is a drug that inhibits phosphodiesterase and blocks adenosine receptors. [1]
A chocolate bar and molten chocolate. Chocolate is made from the cocoa bean, which is a natural source of theobromine. Theobromine is the primary alkaloid found in cocoa and chocolate. Cocoa butter only contains trace amounts of theobromine. There are usually higher concentrations in dark than in milk chocolate. [15]
Chemistry. Tartrazine is water-soluble [10] and has a maximum absorbance in an aqueous solution at 425 nm. [11] It is one of the oldest known members of the ...
Hordenine is an alkaloid of the phenethylamine class that occurs naturally in a variety of plants, taking its name from one of the most common, barley (Hordeum species). ). Chemically, hordenine is the N-methyl derivative of N-methyltyramine, and the N,N-dimethyl derivative of the well-known biogenic amine tyramine, from which it is biosynthetically derived and with which it shares some ...