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Table 2 Hunter’s color values of E-beam-irradiated processed laver products

From: Application of electron beam irradiation for improving the microbial quality of processed laver products and luminescence detection of irradiated lavers

Sample

Hunter’s parameter1

Irradiation dose (kGy)

0

1

4

7

10

DL

L*

41.40 ± 1.25a2

40.71 ± 0.29ab

39.79 ± 1.11bc

39.05 ± 1.48n.s.

38.62 ± 0.44n.s.

a*

0.16 ± 0.03n.s.

0.20 ± 0.06n.s.

0.22 ± 0.06bc

0.30 ± 0.10ab

0.31 ± 0.06a

b*

3.16 ± 0.12n.s.

3.10 ± 0.20n.s.

3.00 ± 0.22ab

2.75 ± 0.21bc

2.70 ± 0.21c

E

0.00e

0.69d

1.62c

2.39b

2.82a

RL

L*

40.46 ± 1.57a

39.54 ± 1.17ab

39.14 ± 1.27ab

38.57 ± 1.13b

38.49 ± 0.64b

a*

− 0.82 ± 0.19d

− 0.62 ± 0.08c

− 0.30 ± 0.14b

− 0.17 ± 0.07ab

− 0.04 ± 0.04a

b*

3.41 ± 0.28a

2.95 ± 0.29b

2.48 ± 0.20c

2.33 ± 0.30 cd

2.01 ± 0.18d

E

0.00e

1.04d

1.70c

2.27b

2.53a

SL

L*

40.94 ± 0.50b

42.07 ± 0.95n.s.

42.21 ± 1.11n.s.

42.31 ± 1.19n.s.

42.58 ± 1.09a

a*

− 2.75 ± 0.11b

− 2.56 ± 0.11n.s.

− 2.53 ± 0.14n.s.

− 2.51 ± 0.08n.s.

− 2.47 ± 0.18n.s.

b*

6.81 ± 0.23n.s.

6.61 ± 0.27n.s.

6.54 ± 0.26n.s.

6.50 ± 0.25n.s.

6.46 ± 0.28n.s.

E

0.00e

1.17d

1.32c

1.43b

1.70a

  1. n.s. (nonsignificant)
  2. 1 L* : Degree of lightness (white +100 ↔ 0 black)
  3. a* : Degree of redness (red +100 ↔ − 80 green)
  4. b*: Degree of yellowness (yellow +70 ↔ − 80 blue)
  5. ΔE: Overall color difference \(\left( \sqrt{\Delta {L}^{2} + \Delta {a}^{2} + \Delta {b}^{2}} \right)\)
  6. 2Values are mean ± SD (n = 10)
  7. a–eValues within the same column with different superscript letters are significantly different at p < 0.05