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Table 7 Comparative minimum bactericidal and fungicidal concentrations (mg/ml) of CEOs against microbial 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

100

> 100

75

100

> 100

75

Candida tropicalis

75

100

> 100

50

100

100

75

Candida krusei

50

25

50

25

50

50

25

Kluyveromyces marxianus

75

75

100

75

75

75

75

Torulopsis fragaria

0.0

0.0

0.0

0.0

0.0

0.0

> 100

Pichia kluyveri

25

50

75

25

25

50

25

Pichia fermentans

50

50

50

25

25

25

25

Pichia anomala

50

50

50

25

25

25

25

Geotrichum candidum

50

50

75

25

75

75

50

Zygosaccharomyces rouxii

> 100

> 100

> 100

> 100

> 100

> 100

> 100

Zygosaccharomyces bailii

> 100

> 100

> 100

> 100

> 100

> 100

> 100

Aspergillus niger

100

100

> 100

50

75

100

50

Aspergillus flavus

> 100

> 100

> 100

> 100

> 100

> 100

> 100

Aspergillus fumigatus

100

100

> 100

50

75

75

50

Aspergillus parasiticus

100

100

100

100

100

100

100

Mucor piriformis

50

75

50

75

50

50

50

Mucor racemosis

50

75

50

75

50

75

50

Fusarium oxysporum

0.0

0.0

0.0

0.0

0.0

0.0

0.0

Fusarium avenaceum

> 100

> 100

0.0

> 100

> 100

0.0

> 100

Fusarium solani

> 100

> 100

> 100

100

100

100

75

Penicillium digitatum

25

25

50

12.5

25

25

12.5

Penicillium expansum

25

25

25

25

25

25

25

Rhizopus oryzae

100

100

> 100

75

> 100

> 100

75

Rhizopus stolonifer

100

100

> 100

75

> 100

> 100

75

Alternaria alternata

75

50

50

75

75

75

50

Bacillus cereus

25

25

50

25

25

25

25

Micrococcus luteus

75

50

75

50

75

75

50

Streptococcus uberis

50

50

100

25

50

50

25

Bacillus subtilis

25

25

50

25

25

25

25

Proteus vulgaris

50

50

50

50

50

50

25

Serratia marcescens

100

100

100

50

50

50

50

Streptococcus agalactiae

25

50

50

50

50

50

25

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