|
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
|
-
a Hydrocarbon. b Corrected against the abiotic hydrocarbon loss. c Branched alkane (pristane). ND: Not determined due to high abiotic depletion.
