Post on 12-Jun-2015
Put bacteria on all plates
Spread plate
Put all plates into incubator at 37 oC for 24 hours
Process of testing bacterial inhibiting property (1)
Put a piece of cotton on each plate
Move every piece of cotton from the plate in incubator to another plate with media
Put all plates into incubator at 37 oC for 24 hours
Process of testing bacterial inhibiting property (2)
put all plates into incubator at 37 oC for 24 hours
Result of testing Staphylococcus aureus bacterial inhibiting property
CONTROL
24 ชม. 48 ชม.
Fluka
24 ชม. 48 ชม.
Biofile
24 ชม. 48 ชม.
S1
24 ชม. 48 ชม.
Fluka xanthate
24 ชม. 48 ชม.
Biofile xanthate
24 ชม. 48 ชม.
S1 xanthate
24 ชม. 48 ชม.
Staphylococcus aureus
Kind of Chitosan Past to 24 hour Past to 48 hour
CONTROL +++ +++
Fluka + ++
Biofile ++ +++
S1 +++ +++
Fluka X + ++
Biofile X ++ +++
S1 X + ++
Note :
+ Found less densely bacteria ++ Found medium densely bacteria
+++ Found high densely bacteria
Result of testing Escherichia colibacterial inhibiting property
CONTROL
24 ชม. 48 ชม.
Fluka
24 ชม. 48 ชม.
Biofile
24 ชม. 48 ชม.
S1
24 ชม. 48 ชม.
Fluka xanthate
24 ชม. 48 ชม.
Biofile xanthate
24 ชม. 48 ชม.
S1 xanthate
24 ชม. 48 ชม.
Escherichia coli
Kind of Chitosan Past to 24 hour Past to 48 hour
CONTROL +++ +++
Fluka + ++
Biofile + ++
S1 ++ ++
Fluka X + ++
Biofile X ++ ++
S1 X +++ +++
Note :
+ Found less densely bacteria ++ Found medium densely bacteria
+++ Found high densely bacteria
Process of testing the color fastness
Dye the cotton for 1 hour by 50 cm3 of the color solution, concentration 1% by m/v
dry the cotton in the air
Wash in the distilled water.
Conclusion
1. the cotton chitosan has a clearer pleat than the cotton.
1. the bacteria in the cotton chitosan plate grow less densely than the bacteria in the cotton plate. It may be assumed that chitosan can decrease the growth of Staphylococcus aureus and Escherichia coli.
Conclusion
3. the color fastness property of the cotton chitosan is better than that of the cotton.
Conclusion