Differential sensitivity of polyhydroxyalkanoate producing bacteria to fermentation inhibitors and comparison of polyhydroxybutyrate production from Burkholderia cepacia and Pseudomonas pseudoflava

Table 1 Minimum inhibitory concentrations (g/L) of representative fermentation inhibitors^a

Bacteria	AA	LA	CA	FA	syr	HMF	fur
Azohydromonas lata	2.00	4.00	0.38	0.38	1.00	6.00	1.50
Bacillus megaterium	0.75	1.50	0.38	0.38	1.50	>6.00	6.00
Burkholderia cepacia	4.00	6.00	1.50	1.50	6.00	>6.00	6.00
Bacillus cereus	1.50	3.00	0.38	0.38	4.00	>6.00	6.00
Pseudomonas olevorans	0.75	1.50	0.38	0.75	6.00	>6.00	6.00
Pseudomonas pseudoflava	0.38	0.75	0.25	0.25	0.50	>6.00	4.00
Ralstonia eutropha	2.00	4.00	0.38	0.75	2.00	>6.00	6.00

Data represents the mean of quadruplicate samples with values >90% growth inhibition (OD₆₀₀) reported.
^aAbbreviations: AA acetic acid, LA levulinic acid, CA coumaric acid, FA ferulic acid, syr syringaldehyde, HMF hydroxymethylfurfural, fur furfural.

ISSN: 1756-0500