Testing inhibition of Staphylococcus aureus and Staphylococcus epidermidis by Agar Well Diffusion
3.3.1. Using chitosan to inhibit bacteria. The wood of wheat sterile dip infection prepared in MHB was then tangle wheat to sweep the infection onto MHA provided throughout the dish by sweeping the plate in the third direction, so the infection spread evenly across. plate (By the bacteria enter the preset up to 20 minutes)
to cork borer No.3 3.3.2 drill on food labels already infected. Then use a needle infected jelly pieces knocked out
3.3.3. Drop chitosan concentrations of 0.125, 0.25, 0.5 and 1.0 into the hole drilled holes per 80μl
3.3.4 Tetracycline antibiotic drops into the hole requires a positive control and distilled water drops into the hole. defined as a negative control for comparison with inhibition of chitosan
3.3.5. Incubated at 37 ° C for 16 -18 hours after the time stipulated, the size of the clear zone formed by a clear margin, measured from one side to the edge of the crystal.
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