Preparation and Characterization of Multifunctional Chitin/Lignin Materials

Table 2

Colorimetric data of precursors (pure chitin and lignin) and chitin/lignin materials.

Sample number	Colorimetric data
	𝐿^∗	𝑎^∗	𝑏^∗	𝑑𝐸
Pure chitin	85.47	1.42	14.43	14.41
Pure lignin	41.26	10.16	25.92	58.24
1	67.31	12.56	39.51	46.93
2	67.37	11.74	38.69	45.26
3	68.82	10.11	35.42	43.21
4	71.08	8.46	32.92	38.64
5	78.77	4.87	26.08	29.79
6	81.29	3.63	22.32	24.92
7	83.95	1.03	19.96	18.80
8	60.66	12.13	38.21	50.08
9	58.48	12.54	30.51	50.24
10	58.02	13.17	34.73	50.86
11	57.30	13.62	34.98	51.50
12	57.09	14.04	36.80	52.42
13	50.98	14.13	38.21	53.50