Phenolic Profile of TunisianOpuntia Ficus IndicaThornless Form Flowers Via Chromatographic and Spectral Analysis by Reversed Phase-High Performance Liquid Chromatography-UV-Photodiode Array and Electrospray Ionization-Mass Spectrometer
International journal of food properties(2013)
摘要
The qualitative and quantitative analysis of phenolic compounds of the methanol extract of Tunisian thornless form Opuntia ficus indica flowers was described. Reversed phase high-performance liquid chromatography UV photodiode array analysis detected four peaks at 320 nm, attributed to phenolic acids; three of them were quantified to 141 mg.kg−1 of fresh plant material. Electrospray ionization mass spectrometer analysis detected 8 glycosylated flavonols at 350 nm, identified among 11 chromatographic peaks. The amount of flavonoids was 4980 mg.kg−1 of fresh plant material, with isorhamnetin glycosylated derivatives as the main flavonoid components (55.1%), quercetin derivatives as the second (23.7%), and kaempferol derivatives as the third (8.4%).
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关键词
Phytochemical Analysis
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