After inoculating the SS chip with spores (approximately 10 กำลัง 8 CFU/ml) cocktail from three
C. perfringensFP isolates, the initial adhesion of spores on chip was approximately 5 log CFU/chip (Count A,Table 3). Increasing the concentration of spores and drying period during adhesion did not increase spores adherence to SS chips (data not shown).