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Table 2 In vitro antifungal activity of the surfactin and rhamnolipid biosurfactant extracts (1.00 mg mL−1) against a panel of clinical and environmental fungal isolates as determined by agar disc diffusion method

From: Characterisation and antimicrobial activity of biosurfactant extracts produced by Bacillus amyloliquefaciens and Pseudomonas aeruginosa isolated from a wastewater treatment plant

Organism

Antifungal zone diameter (mm)

Surfactin extract

(0.26 ± 0.09 mg mL−1)

Rhamnolipid extract

(1.12 ± 0.08 mg mL−1)

a Cryptococcus neoformans CAB1063

Inactive

13 ± 0.8

a Cryptococcus neoformans CAB1067

11.7 ± 0.5

14.3 ± 3.3

a Cryptococcus neoformans CAB1055

15.3 ± 0.5

11.3 ± 0.9

a Candida albicans 8911

13.3 ± 0.5

14.7 ± 0.5

a Candida albicans 8912

13.3 ± 0.5

11.7 ± 0.5

b Cryptococcus neoformans CAB1034

Inactive

18.3 ± 0.8

b Cryptococcus neoformans CAB831

11.7 ± 1.7

15.3 ± 1.9

b Cryptococcus neoformans CAB842

12.3 ± 0.9

Inactive

b Cryptococcus neoformans CAB844

15.3 ± 1.2

16.7 ± 1.7

b Candida albicans 1085

Inactive

14 ± 0.8

  1. The surfactin and rhamnolipid extracts were observed to be at 32.8 and 34.4% purity, respectively
  2. a Clinical strain
  3. b Environmental strain