Table 1 Tryptophan derived metabolites detected in tryptophan-amended aerobic cultures of strain JA2.

From: Tryptophan, a non-canonical melanin precursor: New L-tryptophan based melanin production by Rubrivivax benzoatilyticus JA2

S. no.Rt (min)Generated Mol. formulaExact Massm/z [M-]Mass accuracy (ppm)UV-visible Absorbance (nm)Identification (Confirmed/ Tentative)
17.9C11H12N2O3220219.07780.752755-Hydroxytryptophan
210.9C11H9NO4207206.04580.86270, 280, 2885,6-dihydroxyindole-3-acetic acid
314.3C10H9NO3191190.05090.34275, 3005-hydroxyindole-3-acetic acid
415.5C11H9NO4219218.04561.42260, 2925-Hydroxyindole-3- pyruvate
516.3C9H9NO147146.06091.362905-hydroxy-methyl-indole
  1. Metabolites in italics are confirmed by authentic standards.