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Table 4 WD (mm) of essential oils of Tripleurospermum disciforme (C.A.Mey.) Sch.Bip., Tanacetum parthenium (L.) Sch.Bip. and Achillea biebersteinii Afan. against tested strains

From: Tripleurospermum disciforme (C.A.Mey.) Sch.Bip., Tanacetum parthenium (L.) Sch.Bip, and Achillea biebersteinii Afan.: efficiency, chemical profile, and biological properties of essential oil

Strains

WD (mm)

Essential oils

Antibiotics

Tripleurospermum disciforme (C.A.Mey.) Sch.Bip

Tanacetum parthenium (L.) Sch.Bip

Achillea biebersteinii Afan

Rifampin

Gentamicin

Nystatin

A. brasiliensis

12.00 ± 0.50b

13.00 ± 0.50a

13.00 ± 0.50a

NA

NA

30

A. sniger

ND

ND

ND

NA

NA

27

C. albicans

10.33 ± 0.58a

ND

ND

NA

NA

33

B. subtilis

9.17 ± 0.29b

13.00 ± 0.50a

13.00 ± 0.50a

19

30

NA

E. coli

8.50 ± 0.50a

ND

ND

11

20

NA

K. pneumoniae

8.50 ± 0.50a

ND

ND

8

17

NA

P. aeruginosa

ND

ND

ND

ND

20

NA

S. paratyphi-A

ND

ND

ND

8

18

NA

Sh. dysenteriae

8.33 ± 0.58a

ND

ND

9

17

NA

S. aureus

ND

10.50 ± 0.50a

ND

21

27

NA

S. epidermidis

ND

ND

ND

27

45

NA

S. pyogenes

ND

ND

ND

21

32

NA

  1. Values with different letters are statistically different (Duncan, P ≤ 0.01); Mean (%) ± SD of three cultures were reported
  2. WD The diameters of the inhibition zones includes the diameters of wells (6 mm), ND not determined, NA no activity