Table 1 Change of color measurement as a preliminary study of papyrus samples treated with camphor and lavender oils at different concentrations

From: Evaluation of the effectiveness of camphor and lavender essential oils in protecting papyrus from oxidation

Samples

Color values

Total color difference

L*

a*

b*

ΔE

Control

79.23

6.13

20.34

0.00

Aged untreated sample

78.48

6.97

21.50

1.61

Treated sample (lavender oil 0.5%)

79.17

6.78

20.79

1.00

Treated sample (lavender oil 0.75%)

76.52

6.78

21.79

1.99

Treated sample (lavender oil 1.0%)

76.53

7.44

22.87

2.42

Treated sample (camphor oil 0.5%)

78.7

6.39

20.55

1.13

Treated sample (camphor oil 0.75%)

77.23

6.33

20.63

1.65

Treated sample (camphor oil 1.0%)

77.11

6.75

20.89

1.51

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