Table 6 Factor loading matrix of the investigated variables for Chlorella vulgaris
From: Nitrogen and phosphorus stress as a tool to induce lipid production in microalgae
Variable | PC 1 | PC 2 | PC 3 | PC 4 |
|---|---|---|---|---|
Light Intensity, µmol photons m− 2 s− 1 | 0.73 | 0.18 | -0.60 | -0.24 |
Cultivation Time, day | -0.003 | 0.45 | 0.38 | -0.46 |
Lipid Content, % DW | 0.78 | -0.31 | -0.05 | 0.33 |
Lipid Productivity, mg L− 1 day− 1 | 0.59 | 0.02 | 0.15 | 0.12 |
Total Nitrogen, as NO3-N g L− 1 | -0.58 | 0.41 | -0.41 | 0.03 |
Total Phosphorus, as PO4-P g L− 1 | -0.42 | -0.67 | -0.31 | 0.15 |
N:P | -0.06 | 0.90 | -0.03 | 0.30 |
Total variance, % | 31.83 | 27.02 | 13.82 | 11.81 |