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Table 3 Percent recovery and limit of detection for mock community spiked into whole blood

From: The development and application of a molecular community profiling strategy to identify polymicrobial bacterial DNA in the whole blood of septic patients

 

Percent recovery (%)

Limit of detection (CFU/ml)

Saponin alone

Saponin + 1 Wash

Saponin + 2 washes

Saponin alone

Saponin +1 wash

Saponin + 2 washes

Organism

SC1

SC3

SC5

SC1

SC3

SC5

SC1

SC3

SC5

 

E. coli

82.8

100

73.7

24.8

0

0

32.3

51.7

15.5

102

104

103

E. hormaechei

100

100

100

100

100

100

100

100

100

10

10

10

N. flava

100

100

23.4

100

100

75.6

100

100

37.8

105

104

104

M. luteus

100

68.7

8.0

100

6.9

0

20.1

0

0

102

10

10

S. epidermidis

100

100

100

100

100

39.6

100

100

100

10

10

10

S. aureus

100

100

39.3

100

100

31.7

100

100

100

10

10

10

S. intermedius

100

100

100

100

100

19.9

100

100

100

10

10

10

S. pneumoniae

100

100

0

96.9

100

0

100

100

100

102

102

10

F. necrophorum a

0

100

0

0

0

0

0

0

0

102

103

104

P. melaninogenica a

100

100

0

100

0

0

0

0

0

102

102

102

  1. aBased on recovery alone (Fig. 3) not in SC