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Table 1 1H, 13C and 31P NMR chemical shift of polysaccharide(p.p.m). Spectra in D2O were measured at 27°C and referenced to internal sodium 3-(trimethylsilyl)-(2,2,3,3-2H4) propionate (δH 0.00), internal methanol (δC 49.00)and to external aq. 85% (v/v) phosphoric acid (δP 0.00)

From: Anti-biofilm activity of an exopolysaccharide from a sponge-associated strain of Bacillus licheniformis

Residue

Nucleus

1

2

3

4

5

6

→ 4)-α-D-Galp-(1 →

       
 

1H

5.071 H3Gro

(3.7 Hz)a

3.690

3.784

3.827 C6,4Gal

3.917 C3Gal

3.671 H1Gal

 

13C

99.47 H1Gro

69.37

69.95

78.32 H1Gal

(7.8 Hz)b

70.19

62.18 H5Gal

Gro-1-P-(O →

       
 

1H

3.865 C4Gal -3.906

4.120 C3, 5Gro

3.839-3.770

   
 

13C

65.63* H1Gro

(4 Hz)a -65.41*

(4.5)a

70.76 H1Gal

(7.9 Hz)c

67.15

(~2 Hz)d

   
 

31P

1.269

     
  1. *diastereotopic carbons; a 3J H1, H 2; b 2J C-P ; c 3J C-P ; d 4J C-P; in italics, the signals showing C-H long-range correlations with the positions in superscripts; underlined are the NOE contacts with positions in superscripts.