Structural identification of anthocyanins and analysis of concentrations during growth and flowering in buckwheat (Fagopyrum esculentum Moench) petals
The anthocyanin profiles and variety/breeding-line differences of anthocyanin concentrations in petals of common buckwheat flowers have been studied. Four anthocyanins, cyanidin 3-O-glucoside, cyanidin 3-O-rutinoside, cyanidin 3-O-rhamnoside, and cyanidin 3-O-galactosyl-rhamnoside were isolated fr...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Chemical Society
2007
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/24804/ http://irep.iium.edu.my/24804/1/Agric_Food_Chem.pdf |
| Summary: | The anthocyanin profiles and variety/breeding-line differences of anthocyanin concentrations in petals
of common buckwheat flowers have been studied. Four anthocyanins, cyanidin 3-O-glucoside, cyanidin
3-O-rutinoside, cyanidin 3-O-rhamnoside, and cyanidin 3-O-galactosyl-rhamnoside were isolated from
the petals of common buckwheat (Fagopyrum esculentum Moench), separated using high performance
liquid chromatography and identified using reversed-phase liquid chromatography–electrospray
ionization–tandem mass spectrometry techniques. In every variety/breeding line tested, cyanidin 3-Orutinoside
was detected as the major anthocyanin and the next is cyanidin 3-O-glucoside whereas
cyanidin 3-O-rhamnoside and cyanidin 3-O-galactosyl-rhamnoside were trace or not detectable in
white and pink flowered buckwheat. Of all the varieties/breeding lines tested, Gan-Chao, a Chinese
variety, contained the highest amount of anthocyanins. The largest part of cyanidin moiety was
presented as a proanthocyanidin form (PAs–Cy). Anthocyanins and PAs–Cy in petals were increased
along with increase of flower development stages. Therefore, fully developed petals of red flowered
buckwheat, especially Gan-Chao, are promising as a new anthocyanin-rich material for food
processing. |
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