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. 2008 Jun 11;46(8):2535–2546. doi: 10.1128/JCM.02267-07

TABLE 2.

Reproducibility levels obtained from cells before and after removing appendage structures calculated as D values for different spectral rangesa

Species Isolate D values for the following spectral ranges (cm−1):
Before shearing
After shearing and centrifugation
3,000-2,800 1,500-1,300 1,200-900 3,000-2,800 1,500-1,300 1,200-900
B. cenocepacia 57 (HNLP) 2.13 ± 1.62 6.19 ± 5.30 25.0 ± 23.2 0.75 ± 0.43 0.93 ± 0.66 1.94 ± 1.07
69 (HNLP) 2.71 ± 1.03 6.35 ± 5.29 30.1 ± 28.7 1.11 ± 1.07 1.82 ± 1.55 2.75 ± 0.66
15 (HST) 1.94 ± 1.29 7.62 ± 6.64 13.2 ± 10.9 0.89 ± 068 0.95 ± 1.06 1.70 ± 0.88
P. aeruginosa R2 (HST) 2.73 ± 1.96 8.36 ± 7.19 35.9 ± 40.2 1.20 ± 0.95 2.19 ± 1.07 3.43 ± 1.95
S. maltophilia 50428 (HST) 1.82 ± 1.69 10.12 ± 9.6 20.3 ± 23.2 0.31 ± 0.9 1.85 ± 1.34 2.99 ± 1.98
35668 (HST) 1.9 ± 1.83 9.73 ± 8.25 15.3 ± 12.9 0.60 ± 0.40 0.96 ± 0.57 2.8 ± 2.1
a

D values were calculated (36) for the B. cenocepacia clinical isolates before and after shearing in the spectral regions 1,200 to 900 cm−1 (assigned to carbohydrates), 1,500 to 1,300 cm−1 (mixed region), and 3,000 to 2,800 cm−1 (C—H stretching of >CH2 and —CH3). D values corresponding to one P. aeruginosa clinical isolate (isolate R2) and two S. maltophilia clinical isolates (isolates 50428 and 35668) are shown as examples of the typical D values obtained for genera other than Burkholderia. HNLP, Hospital de Niños La Plata, La Plata, Argentina; HST, Hospital Santa Trinidad, Córdoba, Argentina.