Table II.
Shift of the B-band of PSII-enriched membrane particles in thermoluminescence after addition of formate, M. spicatum extracts, tellimagrandin II, or pure phenolic compounds
| Experiment Series | Treatment | Concentration | Maximum Temperature | Difference to Control ΔT |
|---|---|---|---|---|
| μm | °C | |||
| I | Control 1 | 0 | 17 | |
| Formate | 20,000 | 22 | 5 | |
| 100,000 | 29 | 12 | ||
| Tellimagrandin II | 3 | 22 | 5 | |
| Extract, with ×μm tellimagrandin II | 6 | 29 | 12 | |
| II | Control 2 | 0 | 22 | |
| Gallic acid | 100 | 22 | 0 | |
| 200 | 32 | 10 | ||
| Tannic acid (μg mL−1)a | (5) | 28 | 6 | |
| (25) | 32 | 10 | ||
| (50) | 35 | 13 | ||
| Catechin | 10 | 28 | 6 | |
| 50 | 35 | 13 | ||
| 100 | 38 | 16 | ||
Two series of experiments with different PSII membrane fragment preparations were used (experiment series I and II), yielding different maximum temperatures for the B band in the controls.
a
Tannic acid refers to several similar componds (penta- to decagalloyl-Glc), no exact molecular wt; therefore, molarity can be provided for this substance.