| Activity - Classical |
Activity measured by absorbance spectrophotometry (dopaquinone spontaneous cyclization product, dopachrome, absorabce measurement, 475 nm) in the presence of organic solvent |
Ethanol |
20% |
100 |
35 |
% |
50 mM potassium phosphate buffer |
7 |
25Β°C |
1 mM L-DOPA (L-3,4-Dihydroxyphenylalanine) |
Dopaquinone |
β |
β |
Classical aqueous control (in %) |
| Activity - Classical |
Activity measured by absorbance spectrophotometry (dopaquinone spontaneous cyclization product, dopachrome, absorabce measurement, 475 nm) in the presence of organic solvent |
Dimethyl Sulfoxide (DMSO) |
50% |
100 |
6 |
% |
50 mM potassium phosphate buffer |
7 |
25Β°C |
1 mM L-DOPA (L-3,4-Dihydroxyphenylalanine) |
Dopaquinone |
β |
β |
Classical aqueous control (in %) |
| Activity - Classical |
Activity measured by absorbance spectrophotometry (dopaquinone spontaneous cyclization product, dopachrome, absorabce measurement, 475 nm) in the presence of organic solvent |
Dimethyl Sulfoxide (DMSO) |
40% |
100 |
21 |
% |
50 mM potassium phosphate buffer |
7 |
25Β°C |
1 mM L-DOPA (L-3,4-Dihydroxyphenylalanine) |
Dopaquinone |
β |
β |
Classical aqueous control (in %) |
| Activity - Classical |
Activity measured by absorbance spectrophotometry (dopaquinone spontaneous cyclization product, dopachrome, absorabce measurement, 475 nm) in the presence of organic solvent |
Dimethyl Sulfoxide (DMSO) |
30% |
100 |
66 |
% |
50 mM potassium phosphate buffer |
7 |
25Β°C |
1 mM L-DOPA (L-3,4-Dihydroxyphenylalanine) |
Dopaquinone |
β |
β |
Classical aqueous control (in %) |
| Activity - Classical |
Activity measured by absorbance spectrophotometry (dopaquinone spontaneous cyclization product, dopachrome, absorabce measurement, 475 nm) in the presence of organic solvent |
Dimethyl Sulfoxide (DMSO) |
20% |
100 |
84 |
% |
50 mM potassium phosphate buffer |
7 |
25Β°C |
1 mM L-DOPA (L-3,4-Dihydroxyphenylalanine) |
Dopaquinone |
β |
β |
Classical aqueous control (in %) |
| Activity - Classical |
Activity measured by absorbance spectrophotometry (dopaquinone spontaneous cyclization product, dopachrome, absorabce measurement, 475 nm) in the presence of organic solvent |
Dimethyl Sulfoxide (DMSO) |
10% |
100 |
85 |
% |
50 mM potassium phosphate buffer |
7 |
25Β°C |
1 mM L-DOPA (L-3,4-Dihydroxyphenylalanine) |
Dopaquinone |
β |
β |
Classical aqueous control (in %) |
| Activity - Classical |
Activity measured by absorbance spectrophotometry (dopaquinone spontaneous cyclization product, dopachrome, absorabce measurement, 475 nm) in the presence of organic solvent |
Acetone |
50% |
100 |
19 |
% |
50 mM potassium phosphate buffer |
7 |
25Β°C |
1 mM L-DOPA (L-3,4-Dihydroxyphenylalanine) |
Dopaquinone |
β |
β |
Classical aqueous control (in %) |
| Activity - Classical |
Activity measured by absorbance spectrophotometry (dopaquinone spontaneous cyclization product, dopachrome, absorabce measurement, 475 nm) in the presence of organic solvent |
Acetone |
40% |
100 |
41 |
% |
50 mM potassium phosphate buffer |
7 |
25Β°C |
1 mM L-DOPA (L-3,4-Dihydroxyphenylalanine) |
Dopaquinone |
β |
β |
Classical aqueous control (in %) |
| Activity - Classical |
Activity measured by absorbance spectrophotometry (dopaquinone spontaneous cyclization product, dopachrome, absorabce measurement, 475 nm) in the presence of organic solvent |
Acetone |
30% |
100 |
48 |
% |
50 mM potassium phosphate buffer |
7 |
25Β°C |
1 mM L-DOPA (L-3,4-Dihydroxyphenylalanine) |
Dopaquinone |
β |
β |
Classical aqueous control (in %) |
| Activity - Classical |
Activity measured by absorbance spectrophotometry (dopaquinone spontaneous cyclization product, dopachrome, absorabce measurement, 475 nm) in the presence of organic solvent |
Acetone |
20% |
100 |
57 |
% |
50 mM potassium phosphate buffer |
7 |
25Β°C |
1 mM L-DOPA (L-3,4-Dihydroxyphenylalanine) |
Dopaquinone |
β |
β |
Classical aqueous control (in %) |
| Activity - Classical |
Activity measured by absorbance spectrophotometry (dopaquinone spontaneous cyclization product, dopachrome, absorabce measurement, 475 nm) in the presence of organic solvent |
Acetone |
10% |
100 |
78 |
% |
50 mM potassium phosphate buffer |
7 |
25Β°C |
1 mM L-DOPA (L-3,4-Dihydroxyphenylalanine) |
Dopaquinone |
β |
β |
Classical aqueous control (in %) |
| Activity - Classical |
Activity measured by absorbance spectrophotometry (dopaquinone spontaneous cyclization product, dopachrome, absorabce measurement, 475 nm) in the presence of organic solvent |
Isopropanol |
50% |
100 |
29 |
% |
50 mM potassium phosphate buffer |
7 |
25Β°C |
1 mM L-DOPA (L-3,4-Dihydroxyphenylalanine) |
Dopaquinone |
β |
β |
Classical aqueous control (in %) |
| Activity - Classical |
Activity measured by absorbance spectrophotometry (dopaquinone spontaneous cyclization product, dopachrome, absorabce measurement, 475 nm) in the presence of organic solvent |
Isopropanol |
40% |
100 |
44 |
% |
50 mM potassium phosphate buffer |
7 |
25Β°C |
1 mM L-DOPA (L-3,4-Dihydroxyphenylalanine) |
Dopaquinone |
β |
β |
Classical aqueous control (in %) |
| Activity - Classical |
Activity measured by absorbance spectrophotometry (dopaquinone spontaneous cyclization product, dopachrome, absorabce measurement, 475 nm) in the presence of organic solvent |
Isopropanol |
20% |
100 |
87 |
% |
50 mM potassium phosphate buffer |
7 |
25Β°C |
1 mM L-DOPA (L-3,4-Dihydroxyphenylalanine) |
Dopaquinone |
β |
β |
Classical aqueous control (in %) |
| Activity - Classical |
Activity measured by absorbance spectrophotometry (dopaquinone spontaneous cyclization product, dopachrome, absorabce measurement, 475 nm) in the presence of organic solvent |
Isopropanol |
30% |
100 |
52 |
% |
50 mM potassium phosphate buffer |
7 |
25Β°C |
1 mM L-DOPA (L-3,4-Dihydroxyphenylalanine) |
Dopaquinone |
β |
β |
Classical aqueous control (in %) |
| Activity - Classical |
Activity measured by absorbance spectrophotometry (dopaquinone spontaneous cyclization product, dopachrome, absorabce measurement, 475 nm) in the presence of organic solvent |
Ethanol |
10% |
100 |
65 |
% |
50 mM potassium phosphate buffer |
7 |
25Β°C |
1 mM L-DOPA (L-3,4-Dihydroxyphenylalanine) |
Dopaquinone |
β |
β |
Classical aqueous control (in %) |
| Activity - Classical |
Activity measured by absorbance spectrophotometry (dopaquinone spontaneous cyclization product, dopachrome, absorabce measurement, 475 nm) in the presence of organic solvent |
Ethanol |
30% |
100 |
20 |
% |
50 mM potassium phosphate buffer |
7 |
25Β°C |
1 mM L-DOPA (L-3,4-Dihydroxyphenylalanine) |
Dopaquinone |
β |
β |
Classical aqueous control (in %) |
| Activity - Classical |
Activity measured by absorbance spectrophotometry (dopaquinone spontaneous cyclization product, dopachrome, absorabce measurement, 475 nm) in the presence of organic solvent |
Ethanol |
40% |
100 |
12 |
% |
50 mM potassium phosphate buffer |
7 |
25Β°C |
1 mM L-DOPA (L-3,4-Dihydroxyphenylalanine) |
Dopaquinone |
β |
β |
Classical aqueous control (in %) |
| Activity - Classical |
Activity measured by absorbance spectrophotometry (dopaquinone spontaneous cyclization product, dopachrome, absorabce measurement, 475 nm) in the presence of organic solvent |
Ethanol |
50% |
100 |
10 |
% |
50 mM potassium phosphate buffer |
7 |
25Β°C |
1 mM L-DOPA (L-3,4-Dihydroxyphenylalanine) |
Dopaquinone |
β |
β |
Classical aqueous control (in %) |
| Activity - Classical |
Activity measured by absorbance spectrophotometry (dopaquinone spontaneous cyclization product, dopachrome, absorabce measurement, 475 nm) in the presence of organic solvent |
Methanol |
10% |
100 |
48 |
% |
50 mM potassium phosphate buffer |
7 |
25Β°C |
1 mM L-DOPA (L-3,4-Dihydroxyphenylalanine) |
Dopaquinone |
β |
β |
Classical aqueous control (in %) |
| Activity - Classical |
Activity measured by absorbance spectrophotometry (dopaquinone spontaneous cyclization product, dopachrome, absorabce measurement, 475 nm) in the presence of organic solvent |
Methanol |
20% |
100 |
38 |
% |
50 mM potassium phosphate buffer |
7 |
25Β°C |
1 mM L-DOPA (L-3,4-Dihydroxyphenylalanine) |
Dopaquinone |
β |
β |
Classical aqueous control (in %) |
| Activity - Classical |
Activity measured by absorbance spectrophotometry (dopaquinone spontaneous cyclization product, dopachrome, absorabce measurement, 475 nm) in the presence of organic solvent |
Methanol |
30% |
100 |
35 |
% |
50 mM potassium phosphate buffer |
7 |
25Β°C |
1 mM L-DOPA (L-3,4-Dihydroxyphenylalanine) |
Dopaquinone |
β |
β |
Classical aqueous control (in %) |
| Activity - Classical |
Activity measured by absorbance spectrophotometry (dopaquinone spontaneous cyclization product, dopachrome, absorabce measurement, 475 nm) in the presence of organic solvent |
Methanol |
40% |
100 |
28 |
% |
50 mM potassium phosphate buffer |
7 |
25Β°C |
1 mM L-DOPA (L-3,4-Dihydroxyphenylalanine) |
Dopaquinone |
β |
β |
Classical aqueous control (in %) |
| Activity - Classical |
Activity measured by absorbance spectrophotometry (dopaquinone spontaneous cyclization product, dopachrome, absorabce measurement, 475 nm) in the presence of organic solvent |
Methanol |
50% |
100 |
13 |
% |
50 mM potassium phosphate buffer |
7 |
25Β°C |
1 mM L-DOPA (L-3,4-Dihydroxyphenylalanine) |
Dopaquinone |
β |
β |
Classical aqueous control (in %) |
| Activity - Classical |
Activity measured by absorbance spectrophotometry (dopaquinone spontaneous cyclization product, dopachrome, absorabce measurement, 475 nm) in the presence of organic solvent |
Isopropanol |
10% |
100 |
97 |
% |
50 mM potassium phosphate buffer |
7 |
25Β°C |
1 mM L-DOPA (L-3,4-Dihydroxyphenylalanine) |
Dopaquinone |
β |
β |
Classical aqueous control (in %) |
| Stability - Incubation |
Activity after incubation (17 hours at 30Β°C), measured by absorance spectrophotometry (dopaquinone spontaneous cyclization product, dopachrome, absorbance measurement, 475 nm) in the presence of organic solvent |
Dimethyl Sulfoxide (DMSO) |
70% |
61 |
0 |
% |
Incubation: 50 mM potassium phosphate buffer, Assay: 50 mM potassium phosphate buffer |
7 buffer, 7 assay |
Incubation: 30Β°C, Assay: 25Β°C |
1 mM L-DOPA (L-3,4-Dihydroxyphenylalanine) |
Dopaquinone |
β |
β |
Water-incubated control (in %) | Actvity measured in water before and after incubation, activity measured in the presence of organic solvent before and after incubation (mean of 3 measurements provided) |
| Stability - Incubation |
Activity after incubation (17 hours at 30Β°C), measured by absorance spectrophotometry (dopaquinone spontaneous cyclization product, dopachrome, absorbance measurement, 475 nm) in the presence of organic solvent |
Dimethyl Sulfoxide (DMSO) |
60% |
61 |
0 |
% |
Incubation: 50 mM potassium phosphate buffer, Assay: 50 mM potassium phosphate buffer |
7 buffer, 7 assay |
Incubation: 30Β°C, Assay: 25Β°C |
1 mM L-DOPA (L-3,4-Dihydroxyphenylalanine) |
Dopaquinone |
β |
β |
Water-incubated control (in %) | Actvity measured in water before and after incubation, activity measured in the presence of organic solvent before and after incubation (mean of 3 measurements provided) |
| Stability - Incubation |
Activity after incubation (17 hours at 30Β°C), measured by absorance spectrophotometry (dopaquinone spontaneous cyclization product, dopachrome, absorbance measurement, 475 nm) in the presence of organic solvent |
Dimethyl Sulfoxide (DMSO) |
50% |
61 |
0 |
% |
Incubation: 50 mM potassium phosphate buffer, Assay: 50 mM potassium phosphate buffer |
7 buffer, 7 assay |
Incubation: 30Β°C, Assay: 25Β°C |
1 mM L-DOPA (L-3,4-Dihydroxyphenylalanine) |
Dopaquinone |
β |
β |
Water-incubated control (in %) | Actvity measured in water before and after incubation, activity measured in the presence of organic solvent before and after incubation (mean of 3 measurements provided) |
| Stability - Incubation |
Activity after incubation (17 hours at 30Β°C), measured by absorance spectrophotometry (dopaquinone spontaneous cyclization product, dopachrome, absorbance measurement, 475 nm) in the presence of organic solvent |
Dimethyl Sulfoxide (DMSO) |
40% |
61 |
0 |
% |
Incubation: 50 mM potassium phosphate buffer, Assay: 50 mM potassium phosphate buffer |
7 buffer, 7 assay |
Incubation: 30Β°C, Assay: 25Β°C |
1 mM L-DOPA (L-3,4-Dihydroxyphenylalanine) |
Dopaquinone |
β |
β |
Water-incubated control (in %) | Actvity measured in water before and after incubation, activity measured in the presence of organic solvent before and after incubation (mean of 3 measurements provided) |
| Stability - Incubation |
Activity after incubation (17 hours at 30Β°C), measured by absorance spectrophotometry (dopaquinone spontaneous cyclization product, dopachrome, absorbance measurement, 475 nm) in the presence of organic solvent |
Dimethyl Sulfoxide (DMSO) |
30% |
61 |
27 |
% |
Incubation: 50 mM potassium phosphate buffer, Assay: 50 mM potassium phosphate buffer |
7 buffer, 7 assay |
Incubation: 30Β°C, Assay: 25Β°C |
1 mM L-DOPA (L-3,4-Dihydroxyphenylalanine) |
Dopaquinone |
β |
β |
Water-incubated control (in %) | Actvity measured in water before and after incubation, activity measured in the presence of organic solvent before and after incubation (mean of 3 measurements provided) |
| Stability - Incubation |
Activity after incubation (17 hours at 30Β°C), measured by absorance spectrophotometry (dopaquinone spontaneous cyclization product, dopachrome, absorbance measurement, 475 nm) in the presence of organic solvent |
Dimethyl Sulfoxide (DMSO) |
20% |
61 |
57 |
% |
Incubation: 50 mM potassium phosphate buffer, Assay: 50 mM potassium phosphate buffer |
7 buffer, 7 assay |
Incubation: 30Β°C, Assay: 25Β°C |
1 mM L-DOPA (L-3,4-Dihydroxyphenylalanine) |
Dopaquinone |
β |
β |
Water-incubated control (in %) | Actvity measured in water before and after incubation, activity measured in the presence of organic solvent before and after incubation (mean of 3 measurements provided) |
| Stability - Incubation |
Activity after incubation (17 hours at 30Β°C), measured by absorance spectrophotometry (dopaquinone spontaneous cyclization product, dopachrome, absorbance measurement, 475 nm) in the presence of organic solvent |
Dimethyl Sulfoxide (DMSO) |
10% |
61 |
61 |
% |
Incubation: 50 mM potassium phosphate buffer, Assay: 50 mM potassium phosphate buffer |
7 buffer, 7 assay |
Incubation: 30Β°C, Assay: 25Β°C |
1 mM L-DOPA (L-3,4-Dihydroxyphenylalanine) |
Dopaquinone |
β |
β |
Water-incubated control (in %) | Actvity measured in water before and after incubation, activity measured in the presence of organic solvent before and after incubation (mean of 3 measurements provided) |
| Stability - Incubation |
Activity after incubation (17 hours at 30Β°C), measured by absorance spectrophotometry (dopaquinone spontaneous cyclization product, dopachrome, absorbance measurement, 475 nm) in the presence of organic solvent |
Methanol |
70% |
61 |
0 |
% |
Incubation: 50 mM potassium phosphate buffer, Assay: 50 mM potassium phosphate buffer |
7 buffer, 7 assay |
Incubation: 30Β°C, Assay: 25Β°C |
1 mM L-DOPA (L-3,4-Dihydroxyphenylalanine) |
Dopaquinone |
β |
β |
Water-incubated control (in %) | Actvity measured in water before and after incubation, activity measured in the presence of organic solvent before and after incubation (mean of 3 measurements provided) |
| Stability - Incubation |
Activity after incubation (17 hours at 30Β°C), measured by absorance spectrophotometry (dopaquinone spontaneous cyclization product, dopachrome, absorbance measurement, 475 nm) in the presence of organic solvent |
Methanol |
60% |
61 |
0 |
% |
Incubation: 50 mM potassium phosphate buffer, Assay: 50 mM potassium phosphate buffer |
7 buffer, 7 assay |
Incubation: 30Β°C, Assay: 25Β°C |
1 mM L-DOPA (L-3,4-Dihydroxyphenylalanine) |
Dopaquinone |
β |
β |
Water-incubated control (in %) | Actvity measured in water before and after incubation, activity measured in the presence of organic solvent before and after incubation (mean of 3 measurements provided) |
| Stability - Incubation |
Activity after incubation (17 hours at 30Β°C), measured by absorance spectrophotometry (dopaquinone spontaneous cyclization product, dopachrome, absorbance measurement, 475 nm) in the presence of organic solvent |
Methanol |
50% |
61 |
0 |
% |
Incubation: 50 mM potassium phosphate buffer, Assay: 50 mM potassium phosphate buffer |
7 buffer, 7 assay |
Incubation: 30Β°C, Assay: 25Β°C |
1 mM L-DOPA (L-3,4-Dihydroxyphenylalanine) |
Dopaquinone |
β |
β |
Water-incubated control (in %) | Actvity measured in water before and after incubation, activity measured in the presence of organic solvent before and after incubation (mean of 3 measurements provided) |
| Stability - Incubation |
Activity after incubation (17 hours at 30Β°C), measured by absorance spectrophotometry (dopaquinone spontaneous cyclization product, dopachrome, absorbance measurement, 475 nm) in the presence of organic solvent |
Methanol |
40% |
61 |
0 |
% |
Incubation: 50 mM potassium phosphate buffer, Assay: 50 mM potassium phosphate buffer |
7 buffer, 7 assay |
Incubation: 30Β°C, Assay: 25Β°C |
1 mM L-DOPA (L-3,4-Dihydroxyphenylalanine) |
Dopaquinone |
β |
β |
Water-incubated control (in %) | Actvity measured in water before and after incubation, activity measured in the presence of organic solvent before and after incubation (mean of 3 measurements provided) |
| Stability - Incubation |
Activity after incubation (17 hours at 30Β°C), measured by absorance spectrophotometry (dopaquinone spontaneous cyclization product, dopachrome, absorbance measurement, 475 nm) in the presence of organic solvent |
Methanol |
30% |
61 |
21 |
% |
Incubation: 50 mM potassium phosphate buffer, Assay: 50 mM potassium phosphate buffer |
7 buffer, 7 assay |
Incubation: 30Β°C, Assay: 25Β°C |
1 mM L-DOPA (L-3,4-Dihydroxyphenylalanine) |
Dopaquinone |
β |
β |
Water-incubated control (in %) | Actvity measured in water before and after incubation, activity measured in the presence of organic solvent before and after incubation (mean of 3 measurements provided) |
| Stability - Incubation |
Activity after incubation (17 hours at 30Β°C), measured by absorance spectrophotometry (dopaquinone spontaneous cyclization product, dopachrome, absorbance measurement, 475 nm) in the presence of organic solvent |
Methanol |
20% |
61 |
37 |
% |
Incubation: 50 mM potassium phosphate buffer, Assay: 50 mM potassium phosphate buffer |
7 buffer, 7 assay |
Incubation: 30Β°C, Assay: 25Β°C |
1 mM L-DOPA (L-3,4-Dihydroxyphenylalanine) |
Dopaquinone |
β |
β |
Water-incubated control (in %) | Actvity measured in water before and after incubation, activity measured in the presence of organic solvent before and after incubation (mean of 3 measurements provided) |
| Stability - Incubation |
Activity after incubation (17 hours at 30Β°C), measured by absorance spectrophotometry (dopaquinone spontaneous cyclization product, dopachrome, absorbance measurement, 475 nm) in the presence of organic solvent |
Methanol |
10% |
61 |
48 |
% |
Incubation: 50 mM potassium phosphate buffer, Assay: 50 mM potassium phosphate buffer |
7 buffer, 7 assay |
Incubation: 30Β°C, Assay: 25Β°C |
1 mM L-DOPA (L-3,4-Dihydroxyphenylalanine) |
Dopaquinone |
β |
β |
Water-incubated control (in %) | Actvity measured in water before and after incubation, activity measured in the presence of organic solvent before and after incubation (mean of 3 measurements provided) |
| Stability - Incubation |
Activity after incubation (17 hours at 30Β°C), measured by absorance spectrophotometry (dopaquinone spontaneous cyclization product, dopachrome, absorbance measurement, 475 nm) in the presence of organic solvent |
Ethanol |
70% |
61 |
0 |
% |
Incubation: 50 mM potassium phosphate buffer, Assay: 50 mM potassium phosphate buffer |
7 buffer, 7 assay |
Incubation: 30Β°C, Assay: 25Β°C |
1 mM L-DOPA (L-3,4-Dihydroxyphenylalanine) |
Dopaquinone |
β |
β |
Water-incubated control (in %) | Actvity measured in water before and after incubation, activity measured in the presence of organic solvent before and after incubation (mean of 3 measurements provided) |
| Stability - Incubation |
Activity after incubation (17 hours at 30Β°C), measured by absorance spectrophotometry (dopaquinone spontaneous cyclization product, dopachrome, absorbance measurement, 475 nm) in the presence of organic solvent |
Ethanol |
60% |
61 |
0 |
% |
Incubation: 50 mM potassium phosphate buffer, Assay: 50 mM potassium phosphate buffer |
7 buffer, 7 assay |
Incubation: 30Β°C, Assay: 25Β°C |
1 mM L-DOPA (L-3,4-Dihydroxyphenylalanine) |
Dopaquinone |
β |
β |
Water-incubated control (in %) | Actvity measured in water before and after incubation, activity measured in the presence of organic solvent before and after incubation (mean of 3 measurements provided) |
| Stability - Incubation |
Activity after incubation (17 hours at 30Β°C), measured by absorance spectrophotometry (dopaquinone spontaneous cyclization product, dopachrome, absorbance measurement, 475 nm) in the presence of organic solvent |
Ethanol |
50% |
61 |
0 |
% |
Incubation: 50 mM potassium phosphate buffer, Assay: 50 mM potassium phosphate buffer |
7 buffer, 7 assay |
Incubation: 30Β°C, Assay: 25Β°C |
1 mM L-DOPA (L-3,4-Dihydroxyphenylalanine) |
Dopaquinone |
β |
β |
Water-incubated control (in %) | Actvity measured in water before and after incubation, activity measured in the presence of organic solvent before and after incubation (mean of 3 measurements provided) |
| Stability - Incubation |
Activity after incubation (17 hours at 30Β°C), measured by absorance spectrophotometry (dopaquinone spontaneous cyclization product, dopachrome, absorbance measurement, 475 nm) in the presence of organic solvent |
Ethanol |
40% |
61 |
0 |
% |
Incubation: 50 mM potassium phosphate buffer, Assay: 50 mM potassium phosphate buffer |
7 buffer, 7 assay |
Incubation: 30Β°C, Assay: 25Β°C |
1 mM L-DOPA (L-3,4-Dihydroxyphenylalanine) |
Dopaquinone |
β |
β |
Water-incubated control (in %) | Actvity measured in water before and after incubation, activity measured in the presence of organic solvent before and after incubation (mean of 3 measurements provided) |
| Stability - Incubation |
Activity after incubation (17 hours at 30Β°C), measured by absorance spectrophotometry (dopaquinone spontaneous cyclization product, dopachrome, absorbance measurement, 475 nm) in the presence of organic solvent |
Ethanol |
30% |
61 |
0 |
% |
Incubation: 50 mM potassium phosphate buffer, Assay: 50 mM potassium phosphate buffer |
7 buffer, 7 assay |
Incubation: 30Β°C, Assay: 25Β°C |
1 mM L-DOPA (L-3,4-Dihydroxyphenylalanine) |
Dopaquinone |
β |
β |
Water-incubated control (in %) | Actvity measured in water before and after incubation, activity measured in the presence of organic solvent before and after incubation (mean of 3 measurements provided) |
| Stability - Incubation |
Activity after incubation (17 hours at 30Β°C), measured by absorance spectrophotometry (dopaquinone spontaneous cyclization product, dopachrome, absorbance measurement, 475 nm) in the presence of organic solvent |
Ethanol |
20% |
61 |
26 |
% |
Incubation: 50 mM potassium phosphate buffer, Assay: 50 mM potassium phosphate buffer |
7 buffer, 7 assay |
Incubation: 30Β°C, Assay: 25Β°C |
1 mM L-DOPA (L-3,4-Dihydroxyphenylalanine) |
Dopaquinone |
β |
β |
Water-incubated control (in %) | Actvity measured in water before and after incubation, activity measured in the presence of organic solvent before and after incubation (mean of 3 measurements provided) |
| Stability - Incubation |
Activity after incubation (17 hours at 30Β°C), measured by absorance spectrophotometry (dopaquinone spontaneous cyclization product, dopachrome, absorbance measurement, 475 nm) in the presence of organic solvent |
Ethanol |
10% |
61 |
37 |
% |
Incubation: 50 mM potassium phosphate buffer, Assay: 50 mM potassium phosphate buffer |
7 buffer, 7 assay |
Incubation: 30Β°C, Assay: 25Β°C |
1 mM L-DOPA (L-3,4-Dihydroxyphenylalanine) |
Dopaquinone |
β |
β |
Water-incubated control (in %) | Actvity measured in water before and after incubation, activity measured in the presence of organic solvent before and after incubation (mean of 3 measurements provided) |