Table 1. Antibacterial effect (%) of 1% AA, CTS 1, CTS 2, CTS 3, CTS 4 on Staphylococcus aureus and Vibrio cholerae

Bacteria	Antibacterial effect (%) of chitosan solutions
	1% AA	0.5%	1%	1.5%	2%
V. cholerae	37.45 ± 0.71a	59.89 ± 0.76b	69.33 ± 1.59c	75.89 ± 1.87d	84.17 ± 0.76e
S. aureus	38.70 ± 0.60a	62.94 ± 2.01b	70.38 ± 0.75c	76.76 ± 0.71d	86.85 ± 0.49e

Values with different superscripts within the same row are significantly different (p < 0.05).
1% AA, 1% acetic acid; CTS 1, 0.5% chitosan; CTS 2, 1% chitosan; CTS 3, 1.5% chitosan; CTS 4, 2% chitosan.