Flavonoids: Ukiyo-e colorant

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Great Wave by Katsushika Hokusai

Flavonoids: A group of organic colorant composed of heterocyclic aromatic compounds. For this database, a group of organic yellow colorants have been grouped under flavonoids due to this common chemical composition and difficulty in identifying them individually. Organic yellow olorants that have been thought to have been traditionally used in ukiyo-e prints that fall in this category are: Gardenia or 梔子(kuchinashi), Miscanthus tinctorius grass plant or 苅安(kariyasu), Mountain peach or 山桃(yamamomo), Pagoda tree or 槐(enju), and Toringo crabapple or 棠梨(zumi).

Flavonoids have been detected but with current analysis it is difficult to identify the exact source. The flavanoid yellow appear to be a duller beige compared to the vibrant turmeric and orpiment although this is unkown if this is its natural state or due to age and/or fading.

For more information see: Flavonoid, Gardenia, Kariyasu, Pagoda tree, Zumi

Examples of Flavonoids in Ukiyo-e Prints

Dyed indigo.jpg

Indigo FORS.JPG
Beauties of the Yoshiwara by Suzuki Harunobu

Dyed indigo.jpg

Indigo FORS.JPG
Beauties of the Yoshiwara by Suzuki Harunobu

Dyed indigo.jpg

Indigo FORS.JPG
Beauties of the Yoshiwara by Suzuki Harunobu

Dyed indigo.jpg

Indigo FORS.JPG
Beauties of the Yoshiwara by Suzuki Harunobu

Dyed indigo.jpg

Indigo FORS.JPG
Beauties of the Yoshiwara by Suzuki Harunobu

Analysis

Flavonoids, such as pagoda tree and kariyasu fluoresce weakly under ultraviolet radiation and only have slight differences in their EEM plots (or spectra?). Due to the difficulty in distinguishing these organic yellows, the decision was made to group them as flavonoids to minimize mistakes in identification.

Other Images of Flavonoids

List of Prints

List of prints where indigo was detected

Pages in category "Flavonoids: Ukiyo-e colorant"

The following 51 pages are in this category, out of 51 total.