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- Peonidin abstract "Peonidin is an O-methylated anthocyanidin, and a primary plant pigment. Peonidin gives purplish-red hues to flowers such as the peony, from which it takes its name, and roses. It is also present in some blue flowers, such as the morning glory. Like most anthocyanidins it is pH sensitive, and changes from red to blue as pH rises. This happens because anthocyanidins are highly conjugated chromophores. When the pH is changed, the extent of the conjugation (of the double bonds) is altered, which alters the wavelength of light energy absorbed by the molecule. (Natural anthocyanidins are most stable in a very low pH environment; at pH 8.0, most become colorless.) At pH 2.0, peonidin is cherry red; at 3.0 a strong yellowish pink; at 5.0 it is grape red-purple; and at 8.0 it becomes deep blue; unlike many anthocyanidins, however, it is stable at higher pH, and has in fact been isolated as a blue colorant from the brilliant "Heavenly Blue" morning glory (Ipomoea tricolor Cav cv).Because of its unusual color stability,a cafeyl-acylated buffered formulation of it has been patented for use as food coloring. Peonidin, like many anthocyanidins, has show potent inhibitory and apoptotic effects on cancer cells in vitro, notably metastatic human breast cancer cells. A very large question, however, has been raised about anthocyanidins' penetration and retention in human cells in vivo, due to their rapid elimination from the human body.By far the greatest dietary source of peonidin is raw cranberries, which contain 42 mg per 100 g of fruit. Blueberries, plums, grapes, and cherries also contain significant amounts, ranging from 5 to 12 mg/100 g. Only fresh fruit has been shown to contain significant peonidin; frozen blueberries have been shown to contain almost none. Peonidin has been found in concentractions of up to 40 mg per 100g (cooked) of certain cultivars of purple fleshed sweet potatoes; the amount of peonidin varies greatly across cultivars. It has also been isolated from raw black rice and black bananas. The higher levels of peonidin in fresh fruit corresponds to the rule of thumb that more natural fruit is healthier. Specifically, the amount of phenolic compounds in cranberries have been found to be inversely correlated with fruit size and crop yield.".
- Peonidin iupacName "2-(4-Hydroxy-3-methoxyphenyl)chromenylium-3,5,7-triol".
- Peonidin thumbnail Peonidin.png?width=300.
- Peonidin wikiPageID "11058727".
- Peonidin wikiPageRevisionID "572088159".
- Peonidin hasPhotoCollection Peonidin.
- Peonidin imagefile "Peonidin.png".
- Peonidin imagesize "200".
- Peonidin iupacname "2".
- Peonidin verifiedfields "changed".
- Peonidin verifiedrevid "400272599".
- Peonidin subject Category:Nutrition.
- Peonidin subject Category:O-Methylated_anthocyanidins.
- Peonidin subject Category:Resorcinols.
- Peonidin type Abstraction100002137.
- Peonidin type Chemical114806838.
- Peonidin type Compound114818238.
- Peonidin type Element114840755.
- Peonidin type Material114580897.
- Peonidin type Matter100020827.
- Peonidin type OrganicCompound114727670.
- Peonidin type Part113809207.
- Peonidin type Phenol114989545.
- Peonidin type PhenolEthers.
- Peonidin type PhysicalEntity100001930.
- Peonidin type Quintessence114847103.
- Peonidin type Relation100031921.
- Peonidin type Resorcinol115004715.
- Peonidin type Resorcinols.
- Peonidin type Substance100019613.
- Peonidin type ChemicalCompound.
- Peonidin type ChemicalSubstance.
- Peonidin type ChemicalSubstanceType.
- Peonidin type ChemicalObject.
- Peonidin type Thing.
- Peonidin comment "Peonidin is an O-methylated anthocyanidin, and a primary plant pigment. Peonidin gives purplish-red hues to flowers such as the peony, from which it takes its name, and roses. It is also present in some blue flowers, such as the morning glory. Like most anthocyanidins it is pH sensitive, and changes from red to blue as pH rises. This happens because anthocyanidins are highly conjugated chromophores.".
- Peonidin label "Peonidin".
- Peonidin label "Peonidina".
- Peonidin label "Péonidine".
- Peonidin label "فاوانيدين".
- Peonidin label "ペオニジン".
- Peonidin sameAs Péonidine.
- Peonidin sameAs ペオニジン.
- Peonidin sameAs Peonidina.
- Peonidin sameAs m.02qzlvy.
- Peonidin sameAs Q3072948.
- Peonidin sameAs Q3072948.
- Peonidin sameAs Peonidin.
- Peonidin wasDerivedFrom Peonidin?oldid=572088159.
- Peonidin depiction Peonidin.png.
- Peonidin isPrimaryTopicOf Peonidin.
