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Table 3 Loss of hydrocarbons from an artificial mixture (C7-C19) in 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 bio biosurfactantb (%) Demonstrable degradation of hydrocarbon with biosurfactantb (%)
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 0 ± 0 52 ± 7 0 ± 0 84 ± 4
C13 7 ± 1 42 ± 8 26 ± 3 93 ± 4
C14 17 ± 2 65 ± 4 60 ± 4 98 ± 9
C15 13 ± 2 67 ± 2 87 ± 3 96 ± 2
C16 17 ± 3 74 ± 6 95 ± 8 96 ± 4
C17 21 ± 3 74 ± 9 88 ± 7 93 ± 5
C19c 0 ± 0 49 ± 2 81 ± 8 88 ± 3
  1. a Hydrocarbon. b Corrected against the abiotic hydrocarbon loss. c Branched alkane (pristane). ND: Not determined due to high abiotic depletion.