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Table 1 Triple drug resistant Helicobacter pylori and antimicrobial activities of four components of Citrus aurantifolia

From: Key lime (Citrus aurantifolia) inhibits the growth of triple drug resistant Helicobacter pylori

Strain no.

MIC (μg/ml)

Citral

4-Hexen-3-one

Oleic acid

Palmitic acid

Clarithromycin

Metronidazole

Levofloxacin

TDR 1

5–10

20–50

R

R

R

R

R

TDR 2

10–20

50–100

R

R

R

R

R

TDR 3

5–10

20–50

R

R

R

R

R

TDR 4

10–20

100–200

R

R

R

R

R

TDR 5

10–20

50–100

R

R

R

R

R

TDR 6

10–20

50–100

R

R

R

R

R

TDR 7

100–200

100–200

R

R

R

R

R

TDR 8

5–10

20–50

R

R

R

R

R

TDR 9

10–20

20–50

R

R

R

R

R

TDR 10

2–5

5–10

R

R

R

R

R

TDR 11

5–10

50–100

R

R

R

R

R

TDR 12

2–5

20–50

R

R

R

R

R

TDR 13

10–20

20–50

R

R

R

R

R

TDR 14

5–10

20–50

R

R

R

R

R

TDR 15

10–20

20–50

R

R

R

R

R

TDR 16

5–10

20–50

R

R

R

R

R

TDR 17

2–5

20–50

R

R

R

R

R

TDR 18

2–5

20–50

R

R

R

R

R

ATCC 43526

2–5

20–50

R

R

S

R

S

  1. No. number, MIC minimum inhibitory concentration, TDR triple drug resistant, R resistant, S sensitive, ATCC 43526 Helicobacter pylori strains ATCC 43526