physicochemical and functional properties of crawfish chitosan as ...

100
80
60
40
20
0
-20
APPENDIX 10. Color Characteristics of Crawfish and Commercial Chitosans
b
c
bc
d d
a
d
a
c d b d
e
c
b
c
a
b
d
e
82
cc
b
a
b
d
e
c
d
e
f
a
b
c
d
b c
e
g
L* a*
f
b* C* h Whiteness
a
f
1-DCMPA
2-DMCPA
3-DMPCA
4-DMPAC
5-DPMCA
Vanson75
Sigma 91
(L*=Brightness, C*=Intensity of Color, h=Hue angle, ∆E*=Difference of color, a*=redness, b*=yellowness)
DCMPA=decolorized, demineralized, deproteinized, deacetylated; DMCPA= demineralized, decolorized,
deproteinized, deacetylated; DMPCA= demineralized, deproteinized, decolorized, deacetylated; DMPAC=
demineralized, deproteinized, deacetylated, decolorized; and DPMCA= deproteinized, demineralized,
decolorized, deacetylated. Commercial crab chitosans (Vanson75 and Sigma91).