| |
Ferrous ion chelating activity (%)
|
DPPH radical scavenging activity
|
Total phenol
|
|---|
| |
μmol EDTA/g DW*
|
AEAC**
|
mg GA/100 g DW#
|
|---|
|
March
|
8.3 ± 0.0 c, ##
|
2914.0 ± 25.0 bc
|
117.5 ± 0.0 c
|
|
April
|
7.4 ± 0.0 c
|
2495.5 ± 7.8 d
|
91.6 ± 0.0 f
|
|
May
|
57.0 ± 13.3 a
|
2727.4 ± 9.2 cd
|
98.6 ± 0.0 e
|
|
June
|
17.5 ± 1.2 b
|
3175.4 ± 17.8 a
|
127.1 ± 0.0 a
|
|
September
|
4.1 ± 0.2 c
|
2979.6 ± 356.8 ab
|
122.3 ± 0.0 b
|
|
October
|
4.4 ± 0.1 c
|
2542.2 ± 43.3 d
|
92.3 ± 0.0 f
|
|
November
|
3.3 ± 0.2 c
|
2619.8 ± 24.4 d
|
106.0 ± 0.0 d
|
|
December
|
2.8 ± 0.1 c
|
2896.9 ± 36.6 bc
|
118.8 ± 0.1 bc
|
- *: μmol EDTA/g DW: micromole EDTA equivalents per gram of plant dry weight.
- **: Ascorbic acid equivalent antioxidant activity: milligram of ascorbic acid equivalents per 100 g of plant dry weight (mg AA/100 g DW).
- #: mg GA/100 g DW: milligrams of gallic acid equivalents per 100 g of plant dry weight.
- ##: In a single column, means with the same letter are not significantly different according to Duncan’s multiple range tests at the 0.05 level.
