Table 4.
Effect of different treatments on the microbial levels (log colony-forming units (CFU)/g) of black soldier fly larvae
| Treatment | Control | TP | HPP | SEM | p | ||||
|---|---|---|---|---|---|---|---|---|---|
| Pressure (MPa) | 400 | 600 | |||||||
| Time (min) | 10 | 15 | 1.5 | 10 | 1.5 | 10 | |||
| TVC | 7.97 a | 5.52 e | 5.63 e | 7.65 a,b | 6.53 d | 7.28 b,c | 6.67 c,d | 0.201 | <0.001 |
| ENB | 7.65 a | <2 d | <2 d | 6.12 b | 3.32 c | 2.09 d | <2 d | 0.485 | <0.001 |
| LAB | 6.50 a | <2 c | <2 c | 6.60 a | 4.73 b | <2 c | <2 c | 0.476 | <0.001 |
| YM | 5.07 a | <2 c | <2 c | 3.36 b | <2 c | <2 c | <2 c | 0.265 | <0.001 |
TP = thermal processing; HPP = high-pressure processing; TVC = total viable counts; ENB = Enterobacteriaceae; LAB = lactic acid bacteria; YM = yeasts and moulds; SEM = standard error of the mean. a,b,c,d,e Mean values with different superscript letters within a row were significantly (p < 0.05) different.