Figure 1

600 MHz 1H NMR spectra of the HWE (a) unburied, (b) grassland, (c) woodland, (d) RMII and (e) RMI buried green tea. The assignment of the unburied tea signals is given in Supplementary Fig. S2.
600 MHz 1H NMR spectra of the HWE (a) unburied, (b) grassland, (c) woodland, (d) RMII and (e) RMI buried green tea. The assignment of the unburied tea signals is given in Supplementary Fig. S2.