The invention discloses a
system and method for monitoring the content of
plant flavonoid components in the extraction process in real time. A device comprises an extraction module, a filtering module, a
constant current module, a flavone detection module and an analysis module. The flavone detection module comprises a
tungsten lamp, a
deuterium lamp, an
optical filter 1, a
flow cell, an
optical filter 2, a slit and a photoelectric
detector. Light emitted by the
tungsten lamp and the
deuterium lamp passes through the
optical filter 1, the
flow cell, the optical filter 2, the slit and the photoelectric
detector. A
plant flavone extracting solution in the extracting module enters the filtering module, an unfiltered solution in the filtering module returns to the extracting module, a filtered extracting solution in the filtering module enters the constant-speed module, one path of the extracting solution from the constant-speed module returns to the extracting module, and the other path of the extracting solution enters a
flow cell of the flavone detecting module; and the extracting solution flows out of the flow
cell, enters the flow velocity detection module and finally returns to the extraction module. And an
absorbance vector
signal formed by photoelectric detection in the flavone detection module is accessed to the analysis module. The analysis module obtains the content of the
flavonoid components according to the
absorbance vector signals, and the content of the
flavonoid components in the extracting solution in the
plant flavone extracting process is monitored in real time. The method provided by the invention solves the problem that the content of flavonoid components cannot be detected on line in a plant flavonoid extraction process, and provides a
solid foundation for improving the extraction rate of the plant flavonoid components.