Curcumin: Difference between revisions
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== Description == | == Description == | ||
Any of various Old World plants belonging to the genus ''Curcuma''. Curcuma | Any of various Old World plants belonging to the genus ''Curcuma''. Curcuma plants are used to produce a yellow, water-soluble dye called curcumin that has been used as a colorant and flavoring since ancient times. Most often the name has been used synonymously with [[turmeric]], but it may also refer to [[crocus powder]], and [[saffron]]. Chemically, curcumin is a polyphenol, more particularly a diarylheptanoid, belonging to the group of curcuminoids, which are phenolic pigments responsible for the yellow color of turmeric. Curcumin imparts rich, vibrant golden yellow to orange hues to natural fabrics like cotton, wool, and silk without requiring a mordant. Although it binds directly to fibers, it is a fugitive dye, meaning colors are not colorfast and will fade over time with light and wash exposure. | ||
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
turmeric; saffron; crocus; cúrcuma (Esp.); curcuma (It., Port.) | Natural Yellow 3; CI 75300; turmeric; saffron; crocus; curcumin; cúrcuma (Esp.); curcuma (It., Port.) | ||
== | ==Physical and Chemical Properties== | ||
* Poorly soluble in water | |||
* Highly soluble in organic solvents | |||
* Appearance = Bright yellow-orange powder | |||
* Composition = C21H20O6 | |||
* Molecular Weight = 368.385 g/mol | |||
* CAS # = 458-37-7 | |||
* Melting point = 183 C | |||
==Resources and Citations== | |||
* G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971 Comment: p. 184 | * G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971 Comment: p. 184 | ||
* Ralph Mayer, ''A Dictionary of Art Terms and Techniques'', Harper and Row Publishers, New York, 1969 (also 1945 printing) | * Ralph Mayer, ''A Dictionary of Art Terms and Techniques'', Harper and Row Publishers, New York, 1969 (also 1945 printing) | ||
* Wikipedia: [https://en.wikipedia.org/wiki/Curcumin Curcumin] Accessed April 2026 | |||
* CHSOS: [https://chsopensource.org/products/pigments-checker/pigments-checker-4/pigments-checker-standard-pigments-list/curcuma-k37220/ Spectra (Reflectance, XRF, Raman, FTIR) for Curcuma] | |||
[[Category:Materials database]] | [[Category:Materials database]] | ||
Latest revision as of 16:13, 28 April 2026
Description
Any of various Old World plants belonging to the genus Curcuma. Curcuma plants are used to produce a yellow, water-soluble dye called curcumin that has been used as a colorant and flavoring since ancient times. Most often the name has been used synonymously with turmeric, but it may also refer to crocus powder, and saffron. Chemically, curcumin is a polyphenol, more particularly a diarylheptanoid, belonging to the group of curcuminoids, which are phenolic pigments responsible for the yellow color of turmeric. Curcumin imparts rich, vibrant golden yellow to orange hues to natural fabrics like cotton, wool, and silk without requiring a mordant. Although it binds directly to fibers, it is a fugitive dye, meaning colors are not colorfast and will fade over time with light and wash exposure.
Synonyms and Related Terms
Natural Yellow 3; CI 75300; turmeric; saffron; crocus; curcumin; cúrcuma (Esp.); curcuma (It., Port.)
Physical and Chemical Properties
- Poorly soluble in water
- Highly soluble in organic solvents
- Appearance = Bright yellow-orange powder
- Composition = C21H20O6
- Molecular Weight = 368.385 g/mol
- CAS # = 458-37-7
- Melting point = 183 C
Resources and Citations
- G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 184
- Ralph Mayer, A Dictionary of Art Terms and Techniques, Harper and Row Publishers, New York, 1969 (also 1945 printing)
- Wikipedia: Curcumin Accessed April 2026
- CHSOS: Spectra (Reflectance, XRF, Raman, FTIR) for Curcuma