Figure 1 in Wooden sticks for plaque streaking and microbiological inoculation might be more cost- effective, but is its large scale use feasible? Quality control methods and proof of concept

Figure 1. (a) wooden sticks in the steam autoclave sterilization packages; (b) performing the sterilization quality control process; (c) result of the quality control of the process of sterilization of the sticks in potato agar, after incubation for 05 days at 30 °C; (d) toothpicks of other sizes (10 and 20 cm) submitted to the same process.