H. campechianum is a shrub or small tree widely grown commercially for its Cymbosepalum baronii Baker; Haematoxylon campechiaum L. Use: The extract is a purplish-red natural dye obtained from the Logwood tree. The logwood tree is a spiny tropical American tree (Haematoxylon. Description. Campeche is a fast growing ornamental tree that can reach up to 50 feet in height. It produces numerous delicate round leaflets and extremely.
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Campeche is a fast growing ornamental tree that can reach up to 50 feet in height. It produces numerous delicate round leaflets and extremely haematoxyloj yellow flowers. The tree trunk and branches are thorned and become more gnarled with age, lending to it’s attractive appearance. The wood of the tree is heavy and extremely hard. A black to blue dye, also called logwood extract, is obtained from the heartwood.
Haematoxylum campechianum (logwood)
This tropical hardwood was introduced into Europe as a dyeing agent for textiles soon after the discovery of America in the ‘s. Campeche is native to Belize, Guatemala and Mexico, however it has been naturalized in many South American countries as well. The genus is a small one, with only two species found in Latin and Southern America. Campeche wood is generally prepared as a decoction for the treatment of diarrhea; it is an effective astringent drying agent.
In herbal medicine systems in Mexico it is employed as a natural remedy for anemia, dysentery and diarrhea, intestinal parasites, tuberculosis, and for menstrual disorders. In Brazilian herbal medicine, the bark is used internally for diarrhea, and dysentery; externally as an astringent disinfectant for wounds and skin ulcers.
The main compounds discovered in campeche include acetic acid, ellagic acid, ethyl gallate, haematoxylin, haematoxylol A, myricetin, oxalic-acid, phlobaphane, quercetin, haejatoxylon, tannin, and tetra-o-methylhematoxylol-B.
The Tropical Plant Database.
The colour of Belize Logwood (Haematoxylon campechianum) | Belize Info Center
Tribal and Herbal Medicine Uses Campeche wood is generally prepared as a decoction for the treatment of diarrhea; it is an effective astringent drying agent.
Plant Chemicals The main compounds discovered in campeche include acetic acid, ellagic acid, ethyl gallate, haematoxylin, haematoxylol A, myricetin, oxalic-acid, hamatoxylon, quercetin, resin, tannin, and tetra-o-methylhematoxylol-B. No part of this document may be reproduced or transmitted in any form or by any means, campechianhm or mechanical, including photocopying, recording, or by any information storage or retrieval system, including websites, without written permission.
Please read the Conditions of Useand Copyright Statement for this web page and web site. The following is excerpted from the 9 th edition of the Encyclopedia Britannica: The tree attains a height not exceeding 40 feet. It is said to be ready for felling when about 8 years old. The wood, deprived of its bark campechianumm sap-wood, is sent the market in the form of large blocks and billets.
It is very hard and dense, and exteriorally has a dark brownish red.
The colour of Belize Logwood (Haematoxylon campechianum)
The best qualities come from Campeachy, but is obtained there only in small quantity. A large export trade of logwood of good quality is carried on from Honduras and Jamaica.
The wood was introduced into Europe as a dyeing substance soon after the discovery of America, but for many years from to its use in England was prohibited by legislative enactment on account of the interior dyes which at first were produced by its employment.
The chemical reaction of heamatoxylin is extremely rapid and delicate, rendering that body a valuable laboratory test for alkalis. Logwood is prepared for use by dyers, etc. Chipped logwood is moistened with water and spread in thin layers until a gentle fermentation sets up, whereby, under the influence of liberated ammonia, haematoxylin is formed from the glucoside. By exposure to air, through repeated turnings of the mass, haematein is developed from the haematoxylin, and the chips gradually become coated with the brilliant metallic green crystals of haematein.
Logwood extract haemateinlargely used in calico [cotton dress material printing, is obtained from the chips that are oxidized by the haematein, by lixiviation leachingthe solution being concentrated at as low a temperature as possible.
Logwood is also used for dying woolen goods, in which it produces with various mordants, shades of blue, from a light lavender to a dense blueblack. Logwood blacks assume a bright red tint by the action of dilute acids, a test by which they can readily be distinguished from aniline dyes and other fast blacks.
Logwood is also largely used in the preparation of ink and to a small extent in medicine. The imports of logwood into the United Kingdom during the year amounted to 69, tons, estimated value of which waspounds sterling. Haejatoxylon is an informational site only and no products are sold.
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File:Haematoxylon campechianum flofru.jpg
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