. 2022 Sep 30;20(10):626. doi: 10.3390/md20100626

Table 4.

EC₅₀ values of 11 antioxidant peptides (TCP1 to TCP11) from protein hydrolysate of Skipjack tuna cardiac arterial bulbs (TCAH) on HO·, DPPH·, ABTS⁺·, and O₂⁻·, respectively.

EC₅₀ (mg/mL)
	DPPH·	HO·	ABTS⁺·	O₂⁻·
TCP1	1.867 ± 0.018 ^a	1.931 ± 0.006 ^a	0.273 ± 0.013 ^a	1.558 ± 0.032 ^a
TCP2	2.054 ± 0.021 ^b	2.123 ± 0.031 ^b	0.529 ± 0.003 ^b	1.857 ± 0.002 ^b
TCP3	0.978 ± 0.006 ^c	1.158 ± 0.032 ^c	0.188 ± 0.002 ^c	0.924 ± 0.003 ^c
TCP4	1.186 ± 0.008 ^{d, g}	1.307 ± 0.006 ^d	0.269 ± 0.013 ^a	1.063 ± 0.007 ^d
TCP5	2.296 ± 0.011 ^e	2.744 ± 0.108 ^e	1.447 ± 0.016 ^d	2.980 ± 0.012 ^e
TCP6	1.062 ± 0.032 ^{c, d}	1.243 ± 0.027 ^{c, d}	0.200 ± 0.002 ^{c, e}	0.933 ± 0.011 ^c
TCP7	1.964 ± 0.031 ^{a, b}	2.049 ± 0.018 ^b	0.407 ± 0.008 ^f	1.640 ± 0.055 ^f
TCP8	2.257 ± 0.038 ^e	2.505 ± 0.035 ^f	1.218 ± 0.005 ^g	2.143 ± 0.040 ^g
TCP9	1.149 ± 0.039 ^{d, g}	1.285 ± 0.016 ^c,d	0.216 ± 0.007 ^{e, h}	0.969 ± 0.014 ^c
TCP10	3.204 ± 0.177 ^f	3.556 ± 0.042 ^g	1.641 ± 0.003 ⁱ	3.022 ± 0.015 ^e
TCP11	1.214 ± 0.036 ^g	1.739 ± 0.050 ^h	0.226 ± 0.006 ^h	0.951 ± 0.008 ^c
GSH	0.085 ± 0.002 ^h	0.504 ± 0.011 ⁱ	0.097 ± 0.002 ^j	0.278 ± 0.016 ^h

^a–j Values with same letters indicate no significant difference (p > 0.05).