Plectranthus forsteri – influence of different soil types














    Rosmarinic acid






soil

    Rosmarinic acid – peak areas – fresh material.

1

    16,1

2

    160,9

3

    17,5

4

    25,3

5

    0

6

    359,4




Nepetoidin



soil


Nepetoidin – peak areas – fresh material

                                                                                                  1


                                                                                                  0

                                                                                                  2


                                                                                               39,1

                                                                                                  3


                                                                                                  0

                                                                                                  4


                                                                                               21,4

                                                                                                  5


                                                                                               10,6

                                                                                                  6


                                                                                               10,9






Summary: Production of secondary metabolites can be caused by stress (e.g. extreme pH, lack of
hummus,…)



Task: Calculate the relative concentration of rosmarinic acid and nepetoidin in dry mass and
expressed it graphically.