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AMB Express
Fig. 2 | AMB Express

Fig. 2

From: Characterisation and antimicrobial activity of biosurfactant extracts produced by Bacillus amyloliquefaciens and Pseudomonas aeruginosa isolated from a wastewater treatment plant

Fig. 2

UPLC–MS profiles of surfactin standard (a), ST34 glycerol-MSM liquid culture (ST34LC) extract (b) and ST34 nutrient agar surface culture (ST34NA) (c) showing the five major surfactin groups. The top row profiles show the signal of positive molecular ions detected between 10 and 13 min. Note the difference in Y axis which are a direct indication of amounts. The profiles below each top row spectrum show the extracted spectra of the five surfactin groups with Srf1 = m/z 994.6, Srf2 = m/z 1008.7; Srf3 = m/z 1022.7, Srf4 = m/z 1035.7 and Srf5 = m/z 1050.7

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