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. 2020 Jul 15;25(14):3222. doi: 10.3390/molecules25143222

Figure 1.

Figure 1

Total histamine (A), tyramine (B), cadaverine (C), putrescine (D), spermidine (E), and spermine (F) in tilapia (Oreochromis niloticus) fillets non- and treated with ultraviolet radiation (UV-C) and modified atmosphere packaging (MAP) throughout the entire storage period (10 days) at 4 ± 1 °C. a,b,c,d Different letters indicate significant differences (p < 0.05) among treatments. AP—air-packed tilapia fillets, VP—vacuum-packed tilapia fillets, MAP—MAP-packed tilapia fillets with 50% CO2 and 50% N2, UV—UV-C treated tilapia fillets at 0.30 J/cm2, and MAP/UV—MAP-packed tilapia fillets with 50% CO2 and 50% N2 treated with UV-C at 0.30 J/cm2.