Figure 3

2D infrared spectra during strawberry spoilage process.
(a) 2D-IR asynchronous correlation map of 2600–3400 cm−1 spectra. (b) 2D-IR asynchronous correlation map of 2600–3400 cm−1 spectra. (c) 2D-IR asynchronous correlation map of 800–1300 cm−1 spectra. (d) 2D-IR asynchronous correlation map of 800–1300 cm−1 spectra.