“…To meet this demand, researchers have studied and applied spectroscopic approaches such as nuclear magnetic resonance (NMR), fluorescence spectroscopy (FS), X‐ray computed tomography (CT), hyperspectral imaging (HSI), ultraviolet spectroscopy, visible spectroscopy, and mid‐infrared spectroscopy (MIRS) (Ahmad et al., 2016; Besançon et al., 2020; Botosoa et al., 2013; Caporaso et al., 2018a; Ezeanaka et al., 2019; Fox, & Manley, 2014; Sadat et al., 2019; Salimi Khorshidi et al., 2018; Sendin et al., 2018). Compared to these methods, near‐infrared spectroscopy (NIRS) is the most popular one given its advantages in throughput, portability, versatility, simplicity, and cost (Cen & He, 2007; Manley, 2014; Sadat et al., 2019).…”