TABLE 1.

Overview of the sum of supplemented substrates and recovered products at the end of the four different incubation setups

Substrate or product	Amt recovered (μmol) after incubating:a
	With chitin	Without chitin	With GlcNAc	Without GlcNAc
Total amended amino sugars	678		283 ± 11
Acetate	6 ± 5	NDb	148 ± 16	ND
Propionate	ND	ND	6 ± 1	ND
Hydrogen	ND	ND	ND	ND
Methane	459 ± 42	128 ± 4	464 ± 22	166 ± 8
Total ammonium	167 ± 8	25 ± 2	229 ± 64	45 ± 6

^aFor each setup, the averages and standard deviations from three replicates are shown.

^bND, not detected.