Category:FL
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|rowspan="6"|FLN | |rowspan="6"|FLN | ||
|rowspan="6"|[[:Category:FLN|Neoflavonoid]]<br>[[Image:Fln.png|75px]] | |rowspan="6"|[[:Category:FLN|Neoflavonoid]]<br>[[Image:Fln.png|75px]] | ||
− | |FLNA||[[:Category:FLNA|4-Arylcoumarin]]<br>[[Image:Fln.png| | + | |FLNA||[[:Category:FLNA|4-Arylcoumarin]]<br>[[Image:Fln.png|70px]] |
|- | |- | ||
− | |FLNB||[[:Category:FLNB|4-Arylchroman]]<br>[[Image:Flnb.png| | + | |FLNB||[[:Category:FLNB|4-Arylchroman]]<br>[[Image:Flnb.png|70px]] |
|- | |- | ||
− | |FLNC||[[:Category:FLNC|Dalbergiquinol]]<br>[[Image:Flnc.png| | + | |FLNC||[[:Category:FLNC|Dalbergiquinol]]<br>[[Image:Flnc.png|70px]] |
|- | |- | ||
− | |FLND||[[:Category:FLND|Dalbergione]]<br>[[Image:Flnd.png| | + | |FLND||[[:Category:FLND|Dalbergione]]<br>[[Image:Flnd.png|70px]] |
|- | |- | ||
− | |FLNE||[[:Category:FLNE|Neoflavene]]<br>[[Image:Flne.png| | + | |FLNE||[[:Category:FLNE|Neoflavene]]<br>[[Image:Flne.png|70px]] |
|- | |- | ||
− | |FLNF||[[:Category:FLNF|Coumarinic acid]]<br>[[Image:Flnf.png| | + | |FLNF||[[:Category:FLNF|Coumarinic acid]]<br>[[Image:Flnf.png|70px]] |
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|} | |} |
Revision as of 16:54, 7 March 2008
FL: Flavonoid
Structural Characteristics
Flavonoid is a class of plant secondary metabolites that have two benzene rings (each called A-ring and B-ring) connected by a chain of three carbons (Figure 1).The carbon chain, corresponding to the numbers 2,3,4 in Figure 1, is linked to a hydroxyl group in the A-ring to form the C-ring. The class of flavonoids are usually determined by the modification pattern of the C-ring (Table 1).
1st Class | 2nd Class | ||
---|---|---|---|
FL1 | Aurone and Chalcone![]() |
FL1A | Aurone![]() |
FL1B | Auronol![]() | ||
FL1C | Chalcone![]() | ||
FL1D | Dihydrochalcone![]() | ||
FL2 | Flavanone![]() |
FL2F | Flavanone![]() |
FL3 | Flavone![]() |
FL3F | Flavone![]() |
FL4 | Dihydroflavonol![]() |
FL4D | Dihydroflavonol![]() |
FL5 | Flavonol![]() |
FL5F | Flavonol![]() |
FL6 | Flavan![]() |
FL6F | Flavan![]() |
FL63 | Flavan 3-ol![]() | ||
FL64 | Flavan 4-ol![]() | ||
FL6D | Flavan 3,4-diol![]() | ||
FL7 | Anthocyanin![]() |
FL7A | Anthocyanin![]() |
FL7D | 3-Desoxyanthocyanin![]() | ||
FLI | Isoflavonoid![]() |
FLIA | Isoflavone![]() |
FLIB | Isoflavanone![]() | ||
FLIC | Isoflavan![]() | ||
FLID | Pterocarpane![]() | ||
FLIE | Coumestan![]() | ||
FLIF | Rotenoid![]() | ||
FLIG | Coumaranochromone![]() | ||
FLIH | 3-Arylcoumarin![]() | ||
FLII | 2-Arylbenzofuran![]() | ||
FLIJ | alpha-Methoxynbenzoin![]() | ||
FLN | Neoflavonoid![]() |
FLNA | 4-Arylcoumarin![]() |
FLNB | 4-Arylchroman![]() | ||
FLNC | Dalbergiquinol![]() | ||
FLND | Dalbergione![]() | ||
FLNE | Neoflavene![]() | ||
FLNF | Coumarinic acid![]() |
Biosynthesis
Flavonoid is synthesized through the phenylpropanoid-acetate pathway in all higher plants. It is responsible for many biological activities including pigments, anti-oxidative or anti-allergic agents, and signaling elements in nodule formation. Some of them are quite familiar in our daily life.
Familiar examples.
anthocyanin (blueberry), isoflavone (soybean), rutin (soba noodle), catechin (tea), flavan-diol (tea), naringeninchalcone (tomato), polyphenol (wine, cacao)
Subcategories
This category has the following 10 subcategories, out of 10 total.