Analysis of Flavonoids from Leaves of Cultivated Lycium barbarum L.
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Leaves of Lycium barbarum are widely used as medicine vegetables and functional tea in China. The main flavonoids present in the leaves were separated and identified by high performance liquid chromatography (HPLC), liquid chromatography-atmospheric pressure chemical ionization mass spectrometry (LC-(APCI) MS) and ultraviolet-visible spectra with shift additives. The predominant flavonoid was identified as rutin. Leaves are the rutin-rich parts (16.03–16.33 mg/g). In the wild and cultivated L. barbarum fruits, contents of rutin were determined very low (0.09–1.38 mg/g). The contents of total flavonoids (21.25 mg/g) of cultivated L. barbarum leaves were much higher than those in the wild L. barbarum leaves (17.86 mg/g), so cultivated barbarum leaves are a suitable source for medicine vegetables and functional tea.
KeywordsLycium barbarum L. Leaves Fruits Flavonoids Rutin
This research was partially funded by Knowledge Innovation Project of The Chinese Academy of Sciences (KSCX2-YW-N-030), Major Project of Wuhan Municipal Bureau of Agriculture (200720322099), Special Foundation of President of Chinese Academy of Sciences, 100 Talents Program of Chinese Academy of Sciences, and the CAS/CAFEA International Partnership Program for Creative Research Teams.
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