flavonoids from P. oleracea L., and the analytical method
performed in this article shows it was convenient, rapid,
reliable, and useful in the determination of flavonoids.
The effective components in P. oleracea L. are complicated
and varied. However, according to our knowledge,
there is no special component in P. oleracea L. that has ever
been reported. Flavonoids are major effective components
of P. oleracea L., and flavonoids from P. oleracea L. have
many special roles in medical and health function.
Therefore, the rapid and practical method established in
our work to extract and determine flavonoids from P.
oleracea L. has great significance for studying the active
ingredients of P. oleracea L. and for its quality control.
Acknowledgements This work was financially supported by the
National Natural Science Foundation of China (No. 20875025, No.
J0830415) and the Hunan Provincial Natural Science Foundation (No.
07JJ3018).