physicochemical and functional properties of crawfish chitosan as ...

APPENDIX 15. Emulsion Viscosity Measurement (cP) of Crawfish and Commercial Chitosans with pH Variations
Sample
87
pH
2 4 6 8 10
DCMPA 42.9 (12.86) a 34.1 (0.87) ab 4.3 (0.35) a 24.6 (4.62) ab 14.2 (0.53) d
DMCPA 43.4 (7.91) a 19.7 (8.27) c 3.8 (0.63) abc 26.3 (4.83) a 21.5 (5.27) bcd
DMPCA 36.1 (0.43) a 36.1 (2.76) a 4.0 (0.12) ab 15.2 (0.25) bcd 33.1 (1.00) ab
DMPAC 31.6 (3.28) a 0.6 (0.04) d 2.8 (0.09) abc 20.5 (0.31) abc 30.6 (2.79) abc
DPMCA 24.4 (1.62) a 22.3 (0.53) bc 2.9 (1.12) abc 10.7 (2.34) cd 17.3 (2.00) d
Vanson 75 25.2 (0.82) a 22.8 (1.24) abc 1.7 (0.42) c 18.3 (0.62) abc 19.9 (2.46) cd
Sigma 91 52.4 (16.03) a 32.1 (2.34) abc 1.9 (0.04) bc 7.0 ( 0.04) d 34.0 (4.64) a
Actual mean values are the results from original value divided by 1000. Numbers in parentheses in each column are
standard deviations. Means with different letters are significantly different (p < 0.05). 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).