Table 3. TA and AA contents of strawberries stored at 25 °C for 15 daysa.
| Storage time (day) | Groups | |||||
|---|---|---|---|---|---|---|
| Control | CMC | CS NPs-CMC | ZnO NPs-CMC | CS/Zn NPs-CMC | ||
| TA (%) | 0 | 0.99 ± 0.03A | 0.99 ± 0.03A | 0.99 ± 0.03A | 0.99 ± 0.03A | 0.99 ± 0.03A |
| 4 | 0.74 ± 0.02B | 0.79 ± 0.03a | 0.81 ± 0.04a | 0.79 ± 0.02a | 0.75 ± 0.03a | |
| 8 | 0.50 ± 0.01C | 0.55 ± 0.01b | 0.52 ± 0.02b | 0.51 ± 0.02b | 0.54 ± 0.03b | |
| 12 | 0.24 ± 0.02D | 0.32 ± 0.03c | 0.29 ± 0.01c | 0.34 ± 0.02c | 0.35 ± 0.02c | |
| 15 | 0.21 ± 0.02E | 0.24 ± 0.02d | 0.27 ± 0.02d | 0.27 ± 0.01d | 0.29 ± 0.02d | |
| AA (mg/100 g) | 0 | 17.28 ± 0.10A | 17.28 ± 0.10A | 17.28 ± 0.10A | 17.28 ± 0.10A | 17.28 ± 0.10A |
| 4 | 16.28 ± 0.19B | 16.54 ± 0.13Aa | 16.71 ± 0.42Ab | 16.96 ± 0.04Cab | 17.01 ± 0.04C | |
| 8 | 14.31 ± 0.04D | 14.43 ± 0.12Dc | 15.14 ± 0.13Dd | 15.37 ± 0.29Ddc | 14.81 ± 0.33E | |
| 12 | 13.73 ± 0.12F | 13.58 ± 0.26Ee | 13.07 ± 0.26Ef | 13.85 ± 0.29Ffe | 13.58 ± 0.26H | |
| 15 | 10.79 ± 0.16 G | 11.26 ± 0.13Gh | 10.97 ± 0.42 Gg | 11.65 ± 0.15Ggh | 11.97 ± 0.50M | |
Different letters in the same column and the same row indicate significant statistical differences among groups, n = 3, p < 0.05.