Journal
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
Volume 58, Issue 20, Pages 10812-10816Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jf102175x
Keywords
HPLC; flavonols; flavones; phenolic acids
Funding
- Barij Essence Pharmaceutical Company, Kashan, Iran
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A simple reversed-phase high-performance liquid chromatographic (RP-HPLC) method based on isocratic elution has been developed and validated for the simultaneous quantitation of flavonols (myricetin, quercetin, kaempferol, and isorhamnetin), flavones (luteolin and apigenin), and phenolic acids (chlorogenic, caffeic, ellagic, and rosmarinic acids) as important constituents in fruits, vegetables, and medicinal plants. Analysis was achieved on a 018 column at ambient temperature. The wavelengths used for the detection of flavonols, flavones, and phenolic acids were 370, 350, and 325 nm, respectively. After acid hydrolysis, the flavonoid aglycones were quantified straightforwardly in 20 dry herbal samples. The plants with the highest flavonoids were Rosa damascene, Solidago virgaurea, Ginkgo biloba, and Camellia sinensis. The contents of flavonoids aglycons ranged from 0.54 to 11.10 mg/g, from 0.03 to 14.80 mg/g, from 0.19 to 2.76 mg/g, from 0.15 to 2.36 mg/g, from 0.27 to 2.05 mg/g, and from 0.42 to 1.82 mg/g for quercetin, kaempferol, isorhamnetin, luteolin, apigenin, and myricetin in dry plant samples, respectively.
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