Figure 1.
The concentration of the bioactive compounds in the seven clones (M1, M2, M3, M4, M5, M6, and M7) of R. rosea: (A) salidroside; (B) rosavin; (C) rosin; (D) tyrosol; and (E) cinnamyl alcohol; R. rosea analyzed in 2004 (orange color); produced in 2017 (blue color); mean concentration in mg g−1 ± standard deviation. Only results obtained using the freeze-drying method are presented in the figure. * Rosin was not studied in 2004 in clone M7. * p < 0.05, ** p < 0.01, and *** p < 0.001 for all compounds compared to the samples analyzed in 2004.