Fig. 4
From: Bioconversion of ferulic acid to vanillic acid by Paenibacillus lactis SAMS-2001
a Overlay of HPLC chromatogram at 310 nm showing catabolic route of vanillin: (1) into vanillic acid and (2) by processed culture filtrate of Paenibacillus lactis SAMS-2001. Chromatogram represents decrease in the amount of vanillin (1) with the formation of vanillic (2) when supplemented with the same on the first and fifth days of incubation, respectively b Overlay of HPLC chromatogram at 254 nm showing catabolic route of vanillic degradation by processed culture supernatant of Paenibacillus lactis SAMS-2001. Chromatogram represents decrease in the amount of vanillic without any product formation when supplemented with the same on the first and fifth days of incubation, respectively