Structural identification of anthocyanins and analysis of concentrations during growth and flowering in buckwheat (Fagopyrum esculentum Moench) petals

Tatsuro, Suzuki and Kim, Sun-Ju and Sarker, Md. Zaidul Islam and Mukasa, Yuji and Shigenobu, Takigawa and Matsuura-Endo, Chie and Yamauchi, Hiraoki and Naoto, Hashimoto and Noda, Takahiro and Saito, Tatsuya (2007) Structural identification of anthocyanins and analysis of concentrations during growth and flowering in buckwheat (Fagopyrum esculentum Moench) petals. Journal of Agricultural and Food Chemistry, 2007 (55). pp. 9571-9575. ISSN 0021-8561

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Abstract

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.

Item Type:	Article (Journal)
Additional Information:	6605/24804
Uncontrolled Keywords:	Anthocyanins; ESI-MS; flavonoids; flower; buckwheat; peta
Subjects:	Q Science > QD Chemistry
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Pharmacy > Department of Pharmaceutical Technology
Depositing User:	Professor Md. Zaidul Islam Sarker
Date Deposited:	20 Jan 2013 07:30
Last Modified:	22 Jan 2013 09:06
URI:	http://irep.iium.edu.my/id/eprint/24804

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