Table 1. Effects of H2S treatment on the content of free amino acids (nmol/g FW) in pear slices determined after 3 days of storage at 20°C.
Lys | His | Ala | Leu | Val | Asp | Ser | Glu | Gly | Cys | Thr | Met | Ile | Tyr | Phe | Arg | total | |
0 | 34.2 | ND | 215.4 | 77.9 | 129.5 | 1041.1 | 3225.5 | 10.2 | 32.9 | ND | ND | ND | ND | ND | ND | ND | 4766.8 |
CK | 37.9 | 65.2 | 235.9 | 69.5 | 97.4 | 1609.4 | 4707.1 | ND | 19.5 | ND | ND | ND | ND | ND | ND | ND | 6841.8 |
H2S | ND | 66.2 | 489 | 56.7 | 96.9 | 817.9 | 2760.7 | 73.3 | 14 | 1.3 | ND | ND | ND | ND | ND | ND | 4414 |
0 stands for fresh-cut pear slices; pear slices were treated with water (CK) or 2.0 mM H2S donor NaHS (H2S) for 3 days.