Coca by W. GOLDEN MORTIMER M.D

Author:W. GOLDEN MORTIMER, M.D.
Language: eng
Format: epub
Publisher: Ronin Publishing
Published: 2017-03-18T04:00:00+00:00

Organic Acids

Several organic acids occur in plant cells, either free or combined, which are probably products of destructive metabolism, either from the oxidation of carbohydrates or from the decomposition of proteids. Liebig regarded the highly oxidized acids—especially oxalic, as being the first products of constructive metabolism, which, by gradual reduction, formed carbohydrates and fats, in support of which he referred to the fact that as fruits ripen they become less sour, which he interpreted to mean that the acid is converted into sugar. The probability, however, is that oxalic acid is the product of destructive metabolism, and is the final stage of excretion from which alkaloids are produced, while it is significant, when considering the Coca products, that acids may by decomposition be formed from proteid or may by oxidation be converted into other acids.

Oxalic acid is very commonly found in the leaf cells combined with potassium or calcium.

Oxalic acid is very commonly found in the leaf cells combined with potassium or calcium. It is present in the cells of the Coca leaf as little crystalline cubes or prisms. Malic acid, citric acid, and tartaric acid are familiar as the products of various fruits. Tannic acid is chiefly found as the astringent property of various barks. Often a variety of this acid is characteristic of the plant and associated with its alkaloid. This is the case with the tannic acid described by Niemann in his separation of cocaine, which is intimately related to the alkaloids of the Coca leaf, just as quinine is combined with quinic acid and morphine with meconic acid. It has been suggested that the yield of alkaloid from the Coca leaf is greater in the presence of a large proportion of tannic acid.

Download

Copyright Disclaimer:
This site does not store any files on its server. We only index and link to content provided by other sites. Please contact the content providers to delete copyright contents if any and email us, we'll remove relevant links or contents immediately.