Table 1
Proximate composition of FDC, roe alkaline insolubles (RAIs) as 2’nd byproducts and roe protein isolates (RPIs) by isoelectric solubilization and precipitation (ISP) process

Sample

Yielda (g)

Protein yieldb (g)

Moisture (%)

Protein (%)

Lipid (%)

Ash (%)

FDC

25.3

18.3

4.3 ± 0.1de

72.3 ± 0.4h

10.6 ± 0.1b

5.7 ± 0.5a

ᅟ

RAI-11

8.7

7.1

6.5 ± 0.1b

82.5 ± 0.2d

10.2 ± 0.1bc

2.0 ± 0.0d

RAI-12

8.0

5.9

10.1 ± 0.2a

73.7 ± 0.2g

13.1 ± 0.5a

2.3 ± 0.1d

ᅟ

RPI-1

12.6

10.1

4.7 ± 0.1cd

87.8 ± 0.7b

6.1 ± 0.2d

3.8 ± 0.2b

RPI-2

11.6

9.7

3.4 ± 0.1e

83.2 ± 0.7e

7.4 ± 0.1c

3.2 ± 0.1c

RPI-3

14.1

11.1

2.3 ± 1.5ef

79.1 ± 0.5f

5.6 ± 0.1d

3.2 ± 0.3c

RPI-4

13.4

10.6

5.0 ± 1.8c

79.6 ± 0.7f

6.3 ± 1.0d

3.0 ± 0.1c

ᅟ

Casein

-

-

4.0 ± 0.2d

85.5 ± 0.0c

-

-

Hemoglobin

-

-

2.0 ± 0.0f

94.4 ± 0.4a

-

-