Extraction and Characterization of Cellulose from Broccoli Stems as a New Biopolymer Source for Producing Carboxymethyl Cellulose Films

Table 3

Colour of CMC films under different CMC concentrations (2, 4, and 6 g/100 mL) and glycerol (10-30% ( based on CMC)).

CMC (g/100 mL)	Glycerol (g/100 mL (10-30% based on CMC))	NaOH for CMC synthesis (M)
2	0.2	5	^ab	^bc	^abcde	^fghi
		7.5	^ab	^ab	^abcde	^bc
		10	^ab	^ab	^e	^bc
	0.4	5	^a	^bc	^abcde	^ghi
		7.5	^ab	^abc	^abcd	^efg
		10	^a	^abc	^de	^i
	0.6	5	^ab	^bc	^abcde	^fgh
		7.5	^ab	^bc	^abcde	^fgh
		10	^ab	^bc	^abcde	^ghi
4	0.4	5	^ab	^abc	^abcde	^cde
		7.5	^ab	^abc	^abcde	^cde
		10	^a	^abc	^bcde	^hi
	0.8	5	^a	^abc	^cde	^hi
		7.5	^ab	^abc	^abc	^defg
		10	^ab	^abc	^abcde	^fgh
	1.2	5	^ab	^bc	^abcde	^fgh
		7.5	^ab	^abc	^abcde	^defg
		10	^b	^a	^abcde	^a
6	0.6	5	^ab	^bc	^abcde	^defg
		7.5	^ab	^abc	^ab	^cd
		10	^ab	^abc	^abcde	^fgh
	1.2	5	^ab	^bc	^abcde	^bc
		7.5	^ab	^bc	^ab	^def
		10	^ab	3^bc	^a	^ab
	1.8	5	^ab	^bc	^abc	^def
		7.5	^ab	^bc	^abcde	^fgh
		10	^ab	^c	^abcde	^bc

Note: values are given as (). Different letters a-i in superscript interpreted significant differences () between CMC films from different forming conditions.