Difference between revisions of "Category:Flavonoids: Ukiyo-e colorant"

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[[File:SC130566.jpg|right|250px|link=https://collections.mfa.org/objects/234428/under-the-wave-off-kanagawa-kanagawaoki-namiura-also-kn?ctx=ed6b9b8b-e830-4c25-9793-ba7646059146&idx=3|Great Wave by Katsushika Hokusai]]
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[[File:SC359574.jpg|right|300px|link=Kiyomitsu I, Yoritomo's Hunt at the Foot of Mount Fuji, 11.19694|Yoritomo's Hunt by Torii Kiyomitsu I]]
  
<font size="3">'''[[Flavonoid|Flavonoids]]'''</font>: A group of organic yellows.
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<font size="3">'''[[Flavonoid|Flavonoids]]'''</font>: 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 colorants that have been thought to have been traditionally used in ukiyo-e prints that fall into 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'').
  
moutain peach
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Flavonoids have been detected throughout the production of prints from 1690's through the 1860's. With current non-destructive analytical techniques, it is difficult to identify the exact source of each flavonoid. Flavonoids are duller and more beige when compared to the vibrant yellows produced by [[:Category:Turmeric: Ukiyo-e colorant|turmeric]] and [[:Category:Orpiment: Ukiyo-e colorant|orpiment]]. On prints, the dull appearance of flavonoids is little known since it can be their natural state or due to age and/or fading.
  
'''For more information see:''' [[Flavonoid]], [[Gardenia]], [[Kariyasu]], [[Pagoda tree]], [[Amur cork tree|Yellow wood]], [[Zumi]]
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'''For more information see:''' [[Flavonoid]], [[Gardenia]], [[Gardenia LC]], [[Kariyasu]], [[Chinese grass (Miscanthus tinctorius) LC]], [[Pagoda tree]], [[Pagoda tree (Styphnolobium japonicum) LC]], [[Zumi]]
 
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== Analysis ==
 
== Analysis ==
Gamboge does not fluoresce under UVA radiation and does not produce a distinct pattern using Excitation Emission Matrix (EEM) spectroscopy. Of the possible yellow colorants analyzed, it is the only bright yellow colorant that does not fluoresce but also absorbs the UVA induced fluorescence emitted by the paper. This negative indication was sometimes used to assign the presence of gamboge.
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Flavonoids, such as pagoda tree and kariyasu fluoresce weakly under ultraviolet radiation and only have slight differences in their EEM patterns. Due to the difficulty in distinguishing these organic yellows, the decision was made to group them as flavonoids to minimize mistakes in identification.
 
<gallery mode="packed" heights="200px" style="text-align:left;">
 
<gallery mode="packed" heights="200px" style="text-align:left;">
Gamboge color.PNG|<center>3D EEM plot of Gamboge</center>
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Pagoda tree color.PNG|<center>3D EEM plot for Pagoda tree</center>
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Kariyasu color.png|<center>3D EEM plot for Grass plant</center>
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Gardenia color.PNG|<center>3D EEM plot for Gardenia</center>
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Mountain peach color.png|<center>3D EEM plot for Mountain peach</center>
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Toringo crabapple color.png|<center>3D EEM plot for Toringo crabapple</center>
 
</gallery>
 
</gallery>
  
 
==Other Images of Flavonoids==  
 
==Other Images of Flavonoids==  
 
<gallery>
 
<gallery>
kuchinasi gardenia grp.jpg|Kuchinashi gardenia
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kuchinasi gardenia grp.jpg|Gardenia, kuchinashi
File:gardenia_dyed paper.jpg|Gardenia dyed paper
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File:gardenia_dyed paper.jpg|Paper dyed with gardenia
File:kariyasu_pieces.jpg|Kariyasu, ''Miscanthus tinctorius'' grass plant
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File:kariyasu_pieces.jpg|''Miscanthus tinctorius'' grass plant, kariyasu
File:Pagoda tree buds.JPG|Pagoda tree buds, unopened
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File:Pagoda tree buds.JPG|Pagoda tree buds, enju
File:pagoda tree_dyed paper.jpg|Pagoda tree dyed paper
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File:pagoda tree_dyed paper.jpg|Paper dyed with pagoda tree
File:japanese yellow wood.jpg|Japanese yellow wood
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</gallery>
File:kihada_dyed paper_sm.jpg|Kihada
 
File:yamamomo_pieces.jpg|Mountain peach
 
  
</gallery>
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Take photos of the other yellows to add.
  
 
==List of Prints ==
 
==List of Prints ==
List of prints where indigo was detected
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Below is a list of prints where flavonoids were detected.
 
 
 
 
[[Category:Ukiyo-e Print Colorants]]
 

Revision as of 00:25, 19 November 2020

Yoritomo's Hunt by Torii Kiyomitsu I

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 colorants that have been thought to have been traditionally used in ukiyo-e prints that fall into 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 throughout the production of prints from 1690's through the 1860's. With current non-destructive analytical techniques, it is difficult to identify the exact source of each flavonoid. Flavonoids are duller and more beige when compared to the vibrant yellows produced by turmeric and orpiment. On prints, the dull appearance of flavonoids is little known since it can be their natural state or due to age and/or fading.

For more information see: Flavonoid, Gardenia, Gardenia LC, Kariyasu, Chinese grass (Miscanthus tinctorius) LC, Pagoda tree, Pagoda tree (Styphnolobium japonicum) LC, 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 patterns. 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

Take photos of the other yellows to add.

List of Prints

Below is a list of prints where flavonoids were detected.

Pages in category "Flavonoids: Ukiyo-e colorant"

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