Category:FL

Revision as of 12:19, 9 March 2008 (view source) Editor (Talk | contribs) ← Older edit		Revision as of 22:01, 14 March 2008 (view source) Editor (Talk | contribs) Newer edit →
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	|FL1D||[[:Category:FL1D|Dihydrochalcone]]<br>[[Image:Fl1d.png|120px]]		|FL1D||[[:Category:FL1D|Dihydrochalcone]]<br>[[Image:Fl1d.png|120px]]
	|}		|}
−	||	+	|align="center"| FL2F: [[:Category:FL2F|Flavanone]]
−	{| class="collapsible collapsed" border="1" cellspacing="0" width="150"	+	<!---{| class="collapsible collapsed" border="1" cellspacing="0" width="150"
	|-		|-
	! colspan="2"|2nd Class		! colspan="2"|2nd Class
	|-		|-
	||FL2F||[[:Category:FL2F|Flavanone]]		||FL2F||[[:Category:FL2F|Flavanone]]
−	|}	+	|}--->
−	||	+	|align="center" valign="center"|FL3F: [[:Category:FL3F|Flavone]]
−	{| class="collapsible collapsed" border="1" cellspacing="0" width="150"	+
−	|-	+
−	! colspan="2"|2nd Class	+
−	|-	+
−	||FL3F||[[:Category:FL3F|Flavone]]	+
−	|}	+
	|- valign="top"		|- valign="top"
	|align="center"|FL4: [[:Category:FL4|Dihydroflavonol]]<br>[[Image:Fl4.png|100px]]		|align="center"|FL4: [[:Category:FL4|Dihydroflavonol]]<br>[[Image:Fl4.png|100px]]
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	|align="center"|FL6: [[:Category:FL6|Flavan]]<br>[[Image:Fl6.png|100px]]		|align="center"|FL6: [[:Category:FL6|Flavan]]<br>[[Image:Fl6.png|100px]]
	|- valign="top"		|- valign="top"
−	|	+	|align="center"| FL4D: [[:Category:FL4D|Dihydroflavonol]]
−	{| class="collapsible collapsed" border="1" cellspacing="0" width="150"	+	|align="center"| FL5F: [[:Category:FL5F|Flavonol]]
−	|-	+
−	! colspan="2"|2nd Class	+
−	|-	+
−	||FL4D||[[:Category:FL4D|Dihydroflavonol]]	+
−	|}	+
−	||	+
−	{| class="collapsible collapsed" border="1" cellspacing="0" width="150"	+
−	|-	+
−	! colspan="2"|2nd Class	+
−	|-	+
−	||FL5F||[[:Category:FL5F|Flavonol]]	+
−	|}	+
	||		||
	{| class="collapsible collapsed" border="1" cellspacing="0" width="150"		{| class="collapsible collapsed" border="1" cellspacing="0" width="150"
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	|}		|}
	|}		|}
−	<!--- Class Information (It is used by Template:Hierarchy.)	+	<!--- Class Information (Do not delete. It is used by Template:Hierarchy.)
	&&FL&&Flavonoid&&		&&FL&&Flavonoid&&
	&&FL1&&Aurone and Chalcone&&		&&FL1&&Aurone and Chalcone&&

---

Revision as of 22:01, 14 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
FL1:Aurone and Chalcone	FL2:Flavanone	FL3:Flavone
2nd Class FL1A Aurone FL1B Auronol FL1C Chalcone FL1D Dihydrochalcone	FL2F: Flavanone	FL3F: Flavone
FL4: Dihydroflavonol	FL5: Flavonol	FL6: Flavan
FL4D: Dihydroflavonol	FL5F: Flavonol	2nd Class FL6F Flavan FL63 Flavan 3-ol FL64 Flavan 4-ol FL6D Flavan 3,4-diol
FL7: Anthocyanin	FLI: Isoflavonoid	FLN: Neoflavonoid
2nd Class FL7A Anthocyanin FL7D 3-Desoxyanthocyanin	2nd Class FLIA Isoflavone FLIB Isoflavanone FLIC Isoflavan FLID Pterocarpane FLIE Coumestan FLIF Rotenoid FLIG Coumaranochromone FLIH 3-Arylcoumarin FLII 2-Arylbenzofuran FLIJ alpha-Methoxynbenzoin	2nd Class 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)