Estimation of functional components of Chinese cabbage leaves grown in a plant factory using diffuse reflectance spectroscopy.

Background: In recent years, protected crop production using plant factories to produce high-value crops with greater functional components has become more popular in many countries. The quantification of the components, however, is mainly conducted by laboratory analyses, which are both time- and labor-consuming. The present study aimed to investigate the potential of a non-destructive diffuse reflectance spectroscopy technique for estimating functional components (i.