Three agar plates were labeled, each containing the type of treatment, TA name, class section and group number. With a sterile pipet 130 µL mixed bacterial suspension were removed from the tube labeled “C” and the lid from the control was removed, as well as the bacteria dispensed onto the agar. A cell spreader was dipped in ethanol and was used to spread the bacteria evenly along the agar surface. The transfer of 130 µL of bacterial suspensions from the “lux” tube was placed into the “lux” plate and the cells were spread onto the agar surface once again. The cells in the “NP” tubes were plated onto 2 plates labeled “NP” and the lids were replaced with new ones; the plates were left out in room temperature so the liquid could be absorbed within 10 minutes. The plates were inverted and incubated at
Three agar plates were labeled, each containing the type of treatment, TA name, class section and group number. With a sterile pipet 130 µL mixed bacterial suspension were removed from the tube labeled “C” and the lid from the control was removed, as well as the bacteria dispensed onto the agar. A cell spreader was dipped in ethanol and was used to spread the bacteria evenly along the agar surface. The transfer of 130 µL of bacterial suspensions from the “lux” tube was placed into the “lux” plate and the cells were spread onto the agar surface once again. The cells in the “NP” tubes were plated onto 2 plates labeled “NP” and the lids were replaced with new ones; the plates were left out in room temperature so the liquid could be absorbed within 10 minutes. The plates were inverted and incubated at