Samples were injected into a liquid chromatograph and analysed using UV and fluorescence detection as described previously (Skog et al.,1995). The fluorescence detector was programmed
to 320/390 nm (excitation/emission) for PhlP, 360/ 450nm for Glu-P-1 and Glu-P-2, 300/400 nm for
harman and norharman, 266/410nm for Trp-P-1 and Trp-P-2, and 334/410nm for ActC and MeActC.