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Table 2 Loss of individual hydrocarbons (C7-C19) in the presence of P. aeruginosa ATCC 55925 without and with biosurfactant at different times

From: Biosurfactant-mediated biodegradation of straight and methyl-branched alkanes by Pseudomonas aeruginosa ATCC 55925

H.C. a Demonstrable degradation of hydrocarbon without biosurfactantc (%) Demonstrable degradation of hydrocarbon with biosurfactantc (%)
Day 5 20 5 20
C7 NDe ND ND ND
C8 ND ND ND ND
C9 ND ND ND ND
C10 ND ND ND ND
C11 ND ND ND ND
C12 4±2 23±1 12±4 8±2
C13 8±2 64±2 57±4 92±2
C14 11±1 70±6 81±3 100±0
C15 6±0 41±3 87±5 100±0
C16 5±0 39±3 90±4 100±0
C17 7±0 51±4 89±3 100±0
C19b 0± 0 0±0 65±5 100±0
  1. a Hydrocarbon. b Branched alkane (pristane). c Corrected against the abiotic hydrocarbon loss. ND: Not determined due to high abiotic depletion.