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Table 2 Colony forming unit-normalized 16S r DNA copy number for various extraction protocols associated with three biological replicates of Shigella sonnei

From: The near-quantitative sampling of genomic DNA from various food-borne Eubacteria

 

Shigellacopies 16SrRNA “gene” per CFU

 

Extraction methods

Culture 1

Culture 2

Culture 3

Mean

Stdev

 

Quick Extract (AmPure)

1.29

0.808

1.60

1.23

0.399

a

Fast ID

1.26

1.06

1.82

1.38

0.394

a

BeadBug

2.03

2.12

2.07

2.07

0.0451

a

PrepMan Ultra

2.62

2.30

3.99

2.97

0.898

ab

DNeasy

2.42

2.96

3.63

3.00

0.606

ab

Boiling Water

4.70

2.21

3.49

3.47

1.25

ab

Genscript

2.22

2.88

9.88

4.99

4.24

abc

High Pure

6.96

8.74

9.28

8.33

1.21

bc

Trizol

9.03

8.98

10.3

9.44

0.748

cd

OmniLyse

18.7

14.4

12.1

15.1

3.35

de

Agencourt

18.4

23.7

20.4

20.8

2.68

e

  

CFU mL−1

    
 

3.87 × 108

3.67 × 108

4.18 × 108

   
 

±16.7%

±5.35%

±0.940%

   
  1. Any two means reported with different letters are significantly different at the P = 5 × 10-2 level.