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| Figure 2: GC-MS chromatograms of metabolites in polar fractions of bioreactor samples at time 24, 36 and 60 h. Letters indicate some of the metabolites for which MS spectra highly match those in NIST, TMS, and available standard in-house libraries. These are metabolites of a, lactate; b, glycolate; c, proline; d, glutamine; e, citrate; f, inositol; g, 3-deoxy hexonate; h, fructose; i, fructose; j, a-glucopyranoside; k, trehalose; l, glucopyranose; m, maltose; n, a-galactopyranosiduroate; and o, glucose. |
