Table 4.
The phenolic compounds of D. moldavica in response to the different NH4+:NO3− ratios.
| NH4+:NO3− ratios | Phenolic compounds (mg/100 g) | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Gallic acid | Caffeic acid | Chlorogenic acid | Rutin | p-Coumaric acid | Rosmarinic acid | Quercetin | Cinnamic acid | Apigenin | |
| 100:0* | – | – | – | – | – | – | – | – | – |
| 75:25 | 7.34 ± 0.05a | 14.54 ± 0.07a | 3.84 ± 0.05c | 7.64 ± 0.03a | 2956.46 ± 0.07a | 15.86 ± 0.03a | 47.62 ± 0.03a | 0.84 ± 0.02b | 6.34 ± 0.06b |
| 50:50 | 5.64 ± 0.07c | 0.52 ± 0.01c | 3.66 ± 0.07d | 0.36 ± 0.01d | 1328.26 ± 0.04c | 2.08 ± 0.02c | 1.00 ± 0.02d | 0.54 ± 0.03d | 2.90 ± 0.03c |
| 25:75 | 4.24 ± 0.07d | 0.44 ± 0.02d | 8.40 ± 0.04b | 0.72 ± 0.02c | 1178.16 ± 0.03d | 1.82 ± 0.05d | 1.54 ± 0.04c | 0.74 ± 0.04c | 1.92 ± 0.02d |
| 0:100 | 5.9 ± 0.04b | 1.78 ± 0.03b | 21.24 ± 0.06a | 2.78 ± 0.03b | 2036.48 ± 0.06b | 9.44 ± 0.04b | 8.82 ± 0.04b | 2.42 ± 0.06a | 9.54 ± 0.07a |
*The plants of 100 NH4+:0 NO3− treatment was destroyed in mid-growth stages, due to ammonium toxicity.