Basic characteristics of the food waste and inoculum^a.

Items	Food waste	Inoculum
TS (%)b	10.98 ± 2.04	4.5 ± 0.05
VS (%)c	10.95 ± 2.21	2.2 ± 0.04
VS/TS (%)	97.7 ± 1.11	48.54 ± 0.36
VFAs (mg L−1)d	829.53 ± 103.16	568.4 ± 116.05
pH	4.59 ± 0.17	6.34 ± 0.09
C (% TS)	49.97 ± 0.15	24.48 ± 0.05
H (% TS)	6.79 ± 0.01	3.45 ± 0.01
N (% TS)	3.72 ± 0.06	2.88 ± 0.02
C/N	13.43 ± 0.18	8.49 ± 0.04

^aMean ± standard deviation of three samples.

^bTS, total solids.

^cVS, volatile solids.

^dVFAs, volatile fatty acids.