. 2021 Sep 27;11:19079. doi: 10.1038/s41598-021-98717-y

Table 3.

Antimicrobial activity of trans-piperitol and β-pinene.

Microorganism	trans-Piperitol			β-Pinene
Microorganism	MIC (µg/mL)	MMC (µg/mL)	Zone of inhibition diameter (mm) (1000 µg/mL)	MIC (µg/mL)	MMC (µg/mL)	Zone of inhibition diameter (mm) (1000 µg/mL)
Gram-positive bacteria
S. aureus ATCC 25923	125.00^c	1000.00^d	13.30 ± 0.21^f	500.00^b	1000.00^b	8.86 ± 0.18^b
S. epidermidis ATCC 12228	125.00^c	500.00^c	15.43 ± 0.22^e	500.00^b	1000.00^b	8.78 ± 0.21^c
B. subtilis ATCC 6051	125.00^c	1000.00^d	15.34 ± 0.11^e	500.00^b	1000.00^b	8.62 ± 0.11^d
Gram-negative bacteria
E. coli ATCC 25922	62.50^b	250.00^b	19.23 ± 0.10^c	500.00^b	1000.00^b	8.81 ± 0.11^b
P. aeruginosa ATCC 27853	31.25^a	125.00^a	26.56 ± 0.2^1a	250.00^a	1000.00^b	9.39 ± 0.15^a
E. aerogenes ATCC 13048	31.25^a	125.00^a	25.47 ± 0.13^b	250.00^a	1000.00^b	8.83 ± 0.14^b
Fungus
C. albicans ATCC 10231	62.50^b	250.00^b	18.86 ± 0.12^d	500.00^b	500.00^a	8.74 ± 0.21^c

The data are mean ± standard deviation. Different letters indicate significant differences (p < 0.05).