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Table 2 In vitro antifungal activity of tea-tree oil, terpinen-4-ol, 1,8-cineole and comparatorsa in reference strains

From: In vivo activity of terpinen-4-ol, the main bioactive component of Melaleuca alternifolia Cheel (tea tree) oil against azole-susceptible and -resistant human pathogenic Candida species

Organism

FLC

ITC

TTO

TERP

CIN

 

MIC mg/L

MIC mg/L

MIC %v/v

MIC %v/v

MFC %v/v

MIC %v/v

MFC %v/v

C. albicans ATCC 24433

0.25

0.06

0.25

0.06

0.125

> 4.0

> 4.0

C. albicans ATCC 76615

0.125

0.06

0.25

0.03

0.125

> 4.0

> 4.0

C. albicans ATCC 90029

0.125

0.03

0.25

0.03

0.125

4.0

4.0

C. albicans ATCC 10231

0.125

0.03

0.25

0.06

0.06

> 4.0

> 4.0

C. tropicalis ATCC750

1.0

0.125

0.06

0.03

0.125

> 4.0

> 4.0

C.parapsilosis ATCC 22019

2.0

0.06

0.125

0.03

0.125

> 4.0

> 4.0

C. krusei ATCC 6258

32.0

0.25

0.25

0.03

0.125

> 4.0

> 4.0

C. glabrata ATCC 90030

4.0

0.125

0.06

0.03

0.125

2.0

> 4.0

S. cerevisiae ATCC 9763

4.0

0.25

n.a.

0.03

0.125

4.0

> 4.0

C.neoformans ATCC 90112

2.0

0.03

0.03

0.015

0.06

2.0

> 4.0

C. neoformans ATCC 90113

4.0

0.125

n.a.

0.015

0.06

1.0

n.a.

  1. aFLC = Fluconazole; ITC = Itraconazole; n.a. = not assessed