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Table 6 Comparative minimum inhibitory concentrations (mg/ml) of CEOs against bacterial and fungal isolates

From: Bioactivity of Citrus essential oils (CEOs) against microorganisms associated with spoilage of some fruits

Isolates

A

B

C

A + B

A + C

B + C

A + B + C

Saccharomyces cerevisiae

75

75

100

50

75

100

50

Candida tropicalis

75

75

100

25

75

75

50

Candida krusei

50

50

50

25

50

50

25

Kluyveromyces marxianus

50

50

50

50

50

50

50

Torulopsis fragaria

0.0

0.0

0.0

100

100

100

100

Pichia kluyveri

12.5

25

50

12.5

25

25

25

Pichia fermentans

25

25

25

12.5

12.5

12.5

12.5

Pichia anomala

12.5

12.5

25

12.5

12.5

12.5

12.5

Geotrichum candidum

25

25

50

25

50

50

25

Zygosaccharomyces rouxii

75

100

100

75

75

100

75

Zygosaccharomyces bailii

100

100

100

100

100

100

100

Aspergillus niger

50

75

100

25

75

75

50

Aspergillus flavus

50

75

100

50

100

100

50

Aspergillus fumigatus

75

75

100

25

75

75

50

Aspergillus parasiticus

75

75

75

75

75

75

50

Mucor piriformis

12.5

25

12.5

25

12.5

12.5

12.5

Mucor racemosis

25

50

25

50

25

25

25

Fusarium oxysporum

0.0

0.0

0.0

0.0

0.0

0.0

0.0

Fusarium avenaceum

100

100

0.0

75

100

0.0

75

Fusarium solani

100

100

100

50

50

50

25

Penicillium digitatum

12.5

12.5

25

12.5

25

25

12.5

Penicillium expansum

25

25

25

25

25

25

12.5

Rhizopus oryzae

75

75

100

50

100

100

50

Rhizopus stolonifer

75

75

100

50

100

100

50

Alternaria alternata

25

50

50

25

50

25

25

Lactobacillus plantarum

75

100

100

75

100

100

75

Bacillus cereus

25

25

50

25

25

25

25

Micrococcus luteus

25

50

50

50

50

50

50

Streptococcus uberis

25

25

50

25

25

25

25

Bacillus subtilis

12.5

12.5

25

6.25

12.5

12.5

12.5

Proteus vulgaris

25

25

25

25

25

25

12.5

Serratia marcescens

50

50

50

25

25

25

25

Streptococcus agalactiae

12.5

25

25

25

25

25

12.5

Pseudomonas aeruginosa

12.5

12.5

50

12.5

25

25

25

Erwinia cacticida

25

25

75

25

50

50

25

  1. A—lime oil, B—lemon oil, C—grapefruit oil, 0.0—no inhibition detected when ≥ 100 mg/ml was used