Determination of tea polyphenols content by infrared spectroscopy coupled with iPLS and random frog techniques
Infrared spectroscopy was used for tea polyphenols detection of 14 cultivars tea. Characteristic wavenumbers were selected using PLS, iPLS, biPLS, and random frog. Quantitative determination of tea polyphenols was achieved based on the characteristic wavenumbers. Infrared spectroscopy in tea polyphenols determination is promising.
tea polyphenols infrared spectroscopy random frog interval partial least-squares wavenumber selection