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Related to catechu: black catechu


(kăt`əcho͞o) or


extract from the heartwood of Acacia catechu, a leguminous tree of the pulsepulse,
in botany, common name for members of the Fabaceae (Leguminosae), a large plant family, called also the pea, or legume, family. Numbering about 650 genera and 17,000 species, the family is third largest, after the asters and the orchids.
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 family, native to India and Myanmar. Catechu is a fast brown dye used for various shades of brown and olive, including the familiar khaki, and also in tanning. White cutch is a synonym for gambier, a leaf extract of a shrub (Uncaria gambir) of the madder family, which is similarly used.



a substance obtained from the wood of the East Indian acacia (Acacia catechu) of the family Leguminosae (the plant is native to India and Sri Lanka). By boiling small pieces of the wood, an extract is obtained. After evaporation, the extract becomes a thick reddish brown mass. Catechu contains25–55 percent tannin. It dissolves in acetic acid and is precipi-tated from solution by sulfuric acid or gelatin. Catechu is usedto tan hides and, when oxidized by potassium bichromate, it isused as a dye for cotton and silk fabrics.

References in periodicals archive ?
It showed that there were differences among % reduction of EPG among all 200 patients of sample group treated with Mebendazole (500 mg), TTHF (500 mg) and Areca catechu L.
Partial substitution of phenol with tannins of Uncaria gambier and Acacia catechu in phenol-formaldehyde resin.
Painting in dyes of pomegranate rind, myrobalan, turmeric, black, catechu, madder and indigo with alum as mordant; 124 x 105 cm.
The research team had introduced Thai Traditional Herbal Formula medicine (TTHF) in the treatment of helminthes and compared the efficacy and side effects among Mebendazole (500 mg) and Areca catechu Linn.
Black catechu is extracted from the heartwood in a process of distillation and is used in a variety of preparations.
A medicinal extract of Scutellaria baicalensis and Acacia catechu acts as a dual inhibitor of cyclooxygenase and 5-lipoxygenase to reduce inflammation.
In India, the sissoo is mainly associated with Acacia catechu in the so-called khair-sissu forests found on alluvial soils in Punjab, Uttar Pradesh, Bihar, Bengal and Assam (Puri 1960: 214).
Gutkha is a sweetened mixture of tobacco, betel and catechu, often sold as a breath-freshener.
The botanicals, a catechin derived from the catechu tree and baicalin extracted from Chinese skullcap, were combined in two different formula ratios and then evaluated for anti-inflammatory and antioxidant effects.
2x More Effective Than Triple Strength Glucosamine & Chondroitin Alone," says the label on Schiff Move Free Advanced, which mixes glucosamine (1,500 mg) and chondroitin (200 mg) with Uniflex (a proprietary blend of Chinese Scullcap root and Black Catechu bark) and (3.