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