Table 1.
Putative metabolites for the natural polyphenol oxidase inhibitors in H. erinaceus fruiting body and mycelium.
| Compound | Relative Peak Area 1 | m/z 2 | MT/RT 3 | |
|---|---|---|---|---|
| Fruiting Body | Mycelium | |||
| Antioxidant | ||||
| Tyrosinase inhibitor | ||||
| Ascorbic acid | 640 | - | 175.025 | 8.34 |
| Caffeic acid | 88 | - | 179.035 | 8.88 |
| Chlorogenic acid | 92 | - | 355.107 | 5.51 |
| Cucumin | 45 | - | 269.134 | 10.32 |
| Pyridoxal | 6 | - | 166.066 | 8.52 |
| Quinic acid | 6400 | - | 191.058 | 8.07 |
| Terephtalic acid | 110 | 7.4 | 165.020 | 16.38 |
| Vanillic acid | - | 4.0 | 167.035 | 8.71 |
| Antioxidant, free radical scavenger | ||||
| Adenosine | 510 | 560 | 268.105 | 9.60 |
| Ergosterol | 1300 | 1300 | 379.339 | 15.63 |
| Ergothioneine | 2900 | 100 | 230.096 | 17.29 |
| Glutathione (GSH) | 12 | 240 | 308.092 | 12.98 |
| 5-Hydroxytryptophan | 20 | 3.7 | 221.094 | 11.20 |
| Hypotaurine | 33 | - | 110.027 | 18.06 |
| Tartaric acid | 180 | - | 149.011 | 22.05 |
| Polyamine | ||||
| 1,3-Diaminopropane | 19 | - | 75.091 | 4.31 |
| Putrescine | 16 | 1.3 | 89.107 | 4.58 |
| Spermidine | 190 | 2.4 | 146.165 | 4.40 |
1 Peak area × 100,000 divided by the internal standard peak area of metabolic compounds in the two growth stages (the mushroom fruiting body and mycelium) 2 MS scan range: m/z 50~1000 3 MT (migration time) in CE/RT (retention time) in LC.