Treatments

Symbol

Total anthocyanin mg/g dry matter

% loss of anthocyanin

Fresh flower

AEFF

8.31 ± 0.23

―

Dried flower

AEDF

7.17 ± 0.12^*

13.72

Flower 2-week storage at 5˚C

AESF

6.43 ± 0.24^**

22.63

Flower stored frozen for 1 month

AEZF₁

5.65 ± 0.33^**

32.01

Flower stored frozen for 3 month

AEZF₃

4.71 ± 0.51^**

43.33