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Table 1 Molar C/N ratios.

From: Isolation and purification of Cu-free methanobactin from Methylosinus trichosporiumOB3b

  C/N Relative C content Relative N content
Resin extract 7.9 ± 2.4 100% 100%
Fraction 1 8.7 ± 1.5 35% 23%
Fraction 2 6.3 ± 0.2 13% 14%
Fraction 3 4.7 ± 0.1 32% 42%
Fraction 4 6.1 ± 0.3 20% 21%
Molecular structure of methanobactin 4.5   
  1. Molar C/N ratios of the product isolated from Methylosinus trichosporium OB3b cultures with resin extraction and of the four fractions collected during the following HPLC fractionation procedure as well as the molar C/N ratio of methanobactin according to the molecular structure proposed by Behling et al. [16]. Additionally, the relative C and N contribution of fractions 1-4 to the total content of the resin extract is shown.