Table 1 Effects of different treatment conditions on physicochemical properties of pumpkin juice.
Measuring indicators | Fresh | Sterilization | Fermentation |
|---|---|---|---|
pH | 6.01 ± 0.01a | 5.10 ± 0.00b | 3.81 ± 0.01c |
TA/(g L−1 lactic acid) | 0.46 ± 0.06c | 0.94 ± 0.10b | 3.76 ± 0.14a |
TSS/ (°Brix) | 3.50 ± 0.00b | 4.00 ± 0.00a | 1.50 ± 0.00c |
L* | 33.93 ± 0.02ab | 33.82 ± 0.02b | 34.40 ± 0.02a |
a* | 4.00 ± 0.02a | 3.32 ± 0.03c | 3.45 ± 0.02b |
b* | 10.33 ± 0.05b | 10.00 ± 0.03c | 10.85 ± 0.04a |
C* | 11.08 ± 0.04b | 10.54 ± 0.02c | 11.38 ± 0.04a |
h0 | 68.75 ± 0.21c | 71.61 ± 0.12b | 72.37 ± 0.08a |
ΔE | 0.00 ± 0.00 | 0.87 ± 0.02a | 0.66 ± 0.03b |
BI | 43.88 ± 0.22b | 41.22 ± 0.05c | 44.08 ± 0.18a |
YI | 43.49 ± 0.24b | 42.26 ± 0.10c | 45.04 ± 0.17a |