Table 3.

Aerobic metabolism by heterotrophic bacteria (CO2 evolution over a 38-h period; initial OD600, 0.01) in the presence and absence of (−)-α-pinene (concentration, 3.7 mM)

OrganismAmt (μmol) of CO2produced day−1% Inhibition
ControlCulture containing α-pinene
Escherichia coli 151 ± 1a 139 ± 0.18
Pseudomonas aeruginosa 255 ± 9268 ± 10−5
Serratia marcescens 188 ± 1203 ± 14−8
Staphylococcus aureus 167 ± 6111 ± 1533
Bacillus subtilis 125 ± 22.6 ± 0.198
  • a The values are means ± standard errors of the means determined from duplicate experiments.