Difference between revisions of "Goldthread"

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== Description ==
 
== Description ==
  
''Coptis japonica''
+
A family of flowering plants of the family Coptis native to Asia and North America.  The roots of the plants contain significant amounts of the yellow olorant 'berberine'.  It can easily be extracted to produce a bright yellow dye that fluoresces brightly in ultraviolet light.
  
 
* See also [[http://cameo.mfa.org/wiki/Category:Uemura_dye_archive '''Uemera Dye Archive''' (Ouren)]]  
 
* See also [[http://cameo.mfa.org/wiki/Category:Uemura_dye_archive '''Uemera Dye Archive''' (Ouren)]]  

Revision as of 14:29, 30 June 2020

Silk dyed with goldthread in visible light
Silk dyed with goldthread in UV light

Description

A family of flowering plants of the family Coptis native to Asia and North America. The roots of the plants contain significant amounts of the yellow olorant 'berberine'. It can easily be extracted to produce a bright yellow dye that fluoresces brightly in ultraviolet light.

Synonyms and Related Terms

mouthroot; Coptis japonica; Ouren (Jap.)

Resources and Citations

  • R.J. Adrosko, Natural Dyes in the United States, Smithsonian Institution Press, Washington, DC, 1968

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