Table 2.
Inhibitory effects [% inhibition ± standard error of the mean (SEM; n = 3)] of the coffee extracts against acetylcholinesterase (AChE), butyrylcholinesterase (BChE), and tyrosinase (TYR).
| Extracts | % Inhibition ± SEM at 200 μg/mL | ||
|---|---|---|---|
|
| |||
| AChE | BChE | TYR | |
| Kaffka | —b | 6.95 ± 2.14**** | 15.51 ± 2.25**** |
| Shazili | — | 12.46 ± 1.69**** | — |
| Alkan | — | — | 3.95 ± 1.69**** |
| Hiscafe | — | 6.89 ± 1.34**** | 2.13 ± 0.01**** |
| Madenci | — | 3.99 ± 0.98**** | 15.72 ± 0.30**** |
| Asli | 20.90 ± 1.48**** | 14.34 ± 0.88**** | — |
| Arif | — | 36.12 ± 1.07**** | 7.11 ± 1.01**** |
| Con | 9.94 ± 3.15**** | 6.87 ± 0.18**** | 3.37 ± 1.56**** |
| Hisar | — | — | — |
| Mehmet Efendi | 7.46 ± 1.32**** | 13.39 ± 0.87**** | — |
| Oza | 23.42 ± 1.39**** | 21.68 ± 1.24**** | 7.68 ± 0.80**** |
| Oza light | 21.05 ± 2.30**** | 16.05 ± 3.11**** | 11.38 ± 0.01**** |
| Dibek | 7.93 ± 0.59**** | 18.85 ± 1.67**** | 12.95 ± 0.20**** |
| Action | 15.90 ± 0.61**** | 13.32 ± 1.71**** | 8.11 ± 1.60**** |
| Nescafe Falci | — | 6.78 ± 0.68**** | — |
| Ozerlat | — | — | — |
| Cezbeli | — | — | — |
| Ülker | — | 11.51 ± 0.37**** | — |
| Galanthaminea | 92.87 ± 1.01 | 78.89 ± 0.09 | |
| α-Kojic acidb | 78.89 ± 0.09 | ||
— = no inhibition.
**
p < 0.05;
**
p < 0.01;
***
p < 0.001,
****
p < 0.0001.
a
Reference for AChE and BChE inhibition.
b
Reference for TYR inhibition.