Table 3.

Biodegradation product of Congo red by MnP, LiP and Lac, as obtained through GC-MS analysis (50 mg l⁻¹ Congo red) (combined: LiP + MnP + Lac); not all metabolites are shown.

number	metabolite	molecular weight	retention time (min)	chemical formula	catalytic system
1	l-proline, N-allyloxycarbonyl-, tetradecyl ester	395.303	38.892	C23H41NO4	LiP, combined
2	bis(2-ethylhexyl) phthalate	390.303	35.599	C24H38O4	combined
3	9-octadecenamide, (Z)-	281.272	37.391	C18H35NO	LiP, Lac
4	benzeneacetic acid, decyl ester	276.208	12.958	C18H28O2	Lac
5	pyrrolo[1,2-a]pyrazine-1,4-dione, hexahydro-3-(phenylmethyl)-	244.121	34.014	C14H16N2O2	LiP, MnP, Lac, combined
6	diphenylolpropane	228.115	31.834	C15H16O2	Lac
7	pyrrolo[1,2-a]pyrazine-1,4-dione, hexahydro-3-(2-methylpropyl)-	210.136	27.429	C11H18N2O2	MnP, Lac
8	tryptophol	161.084	24.324	C10H11NO	MnP, combined
9	diethyltrisulfide	153.994	25.508	C4H10S3	MnP, Lac
10	propanoic acid, 2-methyl-, butyl ester	144.115	5.164	C8H16O2	LiP
11	butanoic acid, 2-methylpropyl ester	144.115	5.209	C8H16O2	LiP, MnP
12	butanoic acid, butyl ester	144.115	5.985	C8H16O2	LiP, MnP, Lac
13	hexanoic acid, 2-oxo-, methyl ester	144.078	4.905	C7H12O3	MnP
14	2,2-dimethyl-3-heptanone	142.135	4.808	C9H18O	MnP
15	3,5-dimethyl-4-heptanone	142.135	4.782	C9H18O	combined
16	benzeneacetic acid	136.052	12.473	C8H8O2	LiP, MnP, Lac, combined
17	4-methyl-2-oxovaleric acid	130.063	4.84	C6H10O3	LiP, combined
18	nonane	128.157	3.436	C9H20	MnP, combined
19	phenylethyl alcohol	122.073	8.767	C8H10O	LiP, MnP, Lac, combined
20	propanoic acid, 3-(methylthio)-	120.025	8.592	C4H8O2S	combined
21	p-xylene	106.678	3.889	C8H10	LiP, MnP, Lac, combined
22	o-xylene	106.678	4.213	C8H10	LiP, MnP, Lac, combined
23	ethylbenzene	106.078	3.792	C8H10	LiP, MnP, Lac, combined
24	butanoic acid, 3-methyl-	102.068	3.838	C5H10O2	LiP, MnP, combined
25	butanoic acid, 2-methyl-	102.068	4.458	C5H10O2	MnP, Lac, combined