. 2018 May 21;6(5):1276–1286. doi: 10.1002/fsn3.676

Table 2.

Total amino acid content of skipjack tuna roe (STR) and roe protein concentrates

Amino acid^a	STR	BDC	SDC	EW^c
Protein content (%) (based on dry basis)	82.6	77.3	82.4	84.0
Thr	5.1^a	5.0^b	5.0^b	4.7^c
Val^b	6.2^c	6.5^b	6.2^c	8.2^a
Met^b	2.8^b	2.8^b	3.0^a	2.0^c
ILe^b	5.1^d	5.4^b	5.2^c	6.2^a
Leu^b	8.3^d	8.5^b	8.6^b	9.2^a
Phe^b	4.1^c	4.4^b	4.5^b	6.4^a
His	3.5^a	3.3^ab	3.2^b	2.7^c
Lys	8.4^a	8.4^a	8.1^b	8.2^b
Arg	6.6^ab	6.5^b	6.7^a	4.8^c
EAA (%)	50.1	50.8	50.5	52.4
Asp	9.0^b	9.1^b	8.8^c	11.8^a
Ser	6.0^a	5.7^b	5.8^b	5.7^b
Glu	13.2^b	12.7^c	12.8^c	14.9^a
Pro^b	5.8^b	6.0^a	6.0^a	3.7^c
Gly^b	4.7^a	4.6^ab	4.5^b	4.0^c
Ala^b	6.8^b	7.0^a	6.7^bc	6.6^c
Cys	1.1^a	1.0^ab	1.0^ab	0.7^b
Tyr	3.4^b	3.1^c	4.0^a	0.2^d
NEAA (%)	50.0	49.2	49.6	47.6
Total (%)	100.1	100.0	100.1	100.0
EAA/NEAA	1.00	1.03	1.02	1.10
HAA(%)	43.8	45.2	44.7	46.3

Data are means ± standard deviation of duplicate determination. Values with different letters within the same row are significantly different at p < .05 by Duncan's multiple range test.

STR, skipjack tuna roe; BDC, boil‐dried concentrate; SDC, steam‐dried concentrate; EW, egg withe; EAA, essential amino acids; NEAA, nonessential amino acids; HAA, hydrophobic amino acids.

Amino acid (g/100 g protein) expressed a ratio of a kind of amino acid amount vs. total amino acid.

Hydrophobic amino acid.

Quoted from in our previous study (Lee et al., 2016).