The antibacterial activity (the bacteriostatic reduction
rates in percentage) of control and dyed fabrics against
Staphylococcus aureus and Klebsiella pneumonia is illustrated in Table 1. All the fabrics dyed with the soluble fractions of banana peel extracts displayed outstanding antibacterial activities against Staphylococcus aureus in the range
95.7, and 92.1 for unmercerized Giza 89 and Giza 80 to 99.9
and 98.32 for mercerized samples and Klebsiella pneumonia
in the range 93.8, and 90.31 for unmercerized Giza 89 andGiza 80 to 98.9 and 97.77 for mercerized samples respectively. The antibacterial activity might be attributable to the
Luteolin which is one of the more common flavones a known
antibacterial and antioxidant. Natural colorant extracts are
composed of main component and many unknown components. Therefore, it is very difficult to identify the exact
components that have antibacterial activity against microorganisms. More detailed studies should be made. On the
other hand the mercerized samples show a high antibacterial
activity than the unmercerized samples .The antibacterial
activity might be attributable to the swollen effect.