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. 2021 Jun 18;10(6):1409. doi: 10.3390/foods10061409

Figure 4.

Figure 4

Changes in carbonyls’ contents in freeze-thawed fish fillets: CK: fillets in distilled water; TP: fillets in tea polyphenol; HP1: fillets in 1% bone hydrolysates; HP2: fillets in 2% bone hydrolysates. Different capital letters indicate the results that differ significantly in freeze–thaw cycles with the same treatment (p < 0.05). Different lowercase letters indicate the results that differ significantly with different treatments in the same freeze–thaw cycle (p < 0.05).