Difference between revisions of "Goldthread (Coptis trifolia ) LC"
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== Historical importance == | == Historical importance == | ||
| + | Coptis, like all photoberberin dyes, is used as a direct dye, in a hot dye-bath, to obtain a bright golden yellow on silk or wool. The Micmac of the Gaspe peninsula and Acadia boiled the rhizomes to dye yellow [2]. The French settlers in Canada adopted this dye for their woolen cloth [3]. Japanese used ''Coptis japonica'' as a traditional dye. | ||
= Summary of results = | = Summary of results = | ||
Revision as of 12:43, 10 July 2017
Description
Goldthread is a perennial herb growing from slender bright yellow to orange rhizomes. Goldthread grows in wet coniferous and mixed forests, bogs, willow scrub and tundra, in areas include Japan, China, Korea, Eastern Siberia and North America [1].
Historical importance
Coptis, like all photoberberin dyes, is used as a direct dye, in a hot dye-bath, to obtain a bright golden yellow on silk or wool. The Micmac of the Gaspe peninsula and Acadia boiled the rhizomes to dye yellow [2]. The French settlers in Canada adopted this dye for their woolen cloth [3]. Japanese used Coptis japonica as a traditional dye.
Summary of results
Analytical instrumentation and procedures
Chromatograms
Absorbance at 350nm (mAU)
Sample information
sample information, By R. A. Laursen, Boston University
Identified compounds
| Compound | RT (min.) | MW | UV/vis | Other |
|---|---|---|---|---|
| xx | xx0 | xx | xx | Comments here |
| x | x | x | x | |
| x | x | x | x | |
| x | x | x | x |
References
[1] [2] [3]