Table 3. Identification of false positive colony on Sanita-kun coliform count

Biochemical test	Colony number
	R4-S-6	P13-S-2	P20-S-4	G7-S-8	G30-S-7	S22-S-4
Lactose broth	Gas (-)	Gas (-)	Gas (-)	Gas (-)	Gas (-)	Gas (-)
Gram stain	Positive	Positive	Positive	Positive	Positive	Positive
Spore stain	+	+	+	+	+	+
Catalase	+	+	+	+	+	+
Oxidase	+	+	+	+	+	+
Motility	+	+	+	+	+	+
ONPG	+	+	+	+	+	+
PCC1)	Non-growth	Non-growth	Non-growth	Non-growth	Non-growth	Non-growth
SCC2)	Blue colony	Blue colony	Blue colony	Blue colony	Blue colony	Blue colony
Vitek2 BCL	Bacillus licheniformis	-	-	-	-	Bacillus licheniformis
16S-rRNA sequencing		Bacillus rhizosphaeraeorBacillus clausii	Bacillus pumilusorBacillus safensis	Bacillus pumilusorBacillus safensis	Bacillus pumilusorBacillus safensis

¹⁾PCC: Petrifilm coliform count (incubation at 35℃ for 24 h)
²⁾SCC: Sanita-kun coliform count (incubation at 35℃ for 24 h)