Category:FL1
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|[[:Category:FL1D|FL1D]]||[[:Category:FL1D|Dihydrochalcone]]<br>[[Image:Fl1d.png|120px]] | |[[:Category:FL1D|FL1D]]||[[:Category:FL1D|Dihydrochalcone]]<br>[[Image:Fl1d.png|120px]] | ||
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| + | {{Twocolumn| | ||
| + | Probably, the oldest known chalcone is [[en:carthamin|Carthamin]] from safflower (''[[Species:Carthamus|Carthamus tinctorius]]''), a crimson dye that has long been used in India, Egypt, Japan, and other countries. Major pigments in safflower are water-soluble [[FL1CQUCS0001|Safflor yellow A]], Safflomin B and [[FL1CQUCN0001|Safflomin C]] (60%), whereas red Carthamin, which is water-insoluble, is only less than 1%. The structure of Carthamin, two chalcones connected by a methine group, was identified by Onodera et al. in 1979. (This is why we do not have Carthamin in this database, which collects only chalcone monomers. The same is true for Safflomin B, whose structure is a coupling of two chalcones.) | ||
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| + | 一番古くから知られるカルコンはおそらく, 紅花の赤色色素[[jp:carthamin|カルタミン]]でしょう。 | ||
| + | インド、エジプト、日本をはじめ多くの国で利用されてきました。紅花の色素は大半が水溶性の | ||
| + | [[FL1CQUCS0001|サフラワーイエローA]], サフロミン B そして [[FL1CQUCN0001|サフロミン C]]です。 | ||
| + | カルタミンは水に不溶で1%にすぎません。その構造は2つのカルコンがメチン基で結合しており, 1979年に山形大学の小野寺らが明らかにしました。(このデータベースではカルコンの単体しか収録していないため | ||
| + | カルタミンは含まれていません。サフロミン Bも二つのカルコンが結合した構造のため、収録していません。) | ||
| + | }} | ||
| + | * [http://repo.lib.yamagata-u.ac.jp/bitstream/123456789/1215/1/kiyoue-22-2-02.html | ||
| + | Obara H., Onodera J., Sato S. "Carthamin, the Red Pigment of Safflower" | ||
| + | ''Bull. Yamagata Univ. 22(2), 1993] The story of structural identification of Carthamin (in Japanese) | ||
| + | * Obara H., Onodera J. "Structure of Carthamin", ''Chem. Lett'' 201-204, 1979 | ||
Revision as of 00:39, 11 October 2008
Aurone, Auronol, Chalcone, and Dihydrochalcone
| Flavonoid Top | Molecule Index | Author Index | Journals | Structure Search | Food | New Input |
Upper classes : FL Flavonoid
| Class | |||
|---|---|---|---|
| FL1A | Aurone
|
FL1B | Auronol
|
| FL1C | Chalcone
|
FL1D | Dihydrochalcone
|
Probably, the oldest known chalcone is from safflower (Carthamus tinctorius), a crimson dye that has long been used in India, Egypt, Japan, and other countries. Major pigments in safflower are water-soluble Safflor yellow A, Safflomin B and Safflomin C (60%), whereas red Carthamin, which is water-insoluble, is only less than 1%. The structure of Carthamin, two chalcones connected by a methine group, was identified by Onodera et al. in 1979. (This is why we do not have Carthamin in this database, which collects only chalcone monomers. The same is true for Safflomin B, whose structure is a coupling of two chalcones.)
Obara H., Onodera J., Sato S. "Carthamin, the Red Pigment of Safflower" Bull. Yamagata Univ. 22(2), 1993] The story of structural identification of Carthamin (in Japanese)
- Obara H., Onodera J. "Structure of Carthamin", Chem. Lett 201-204, 1979
Database statistics データベース統計
