Table 1.

Average characteristics of the feedstocks used for R-I and R-II.

	Feed R-I	Feed R-II
TS (g L−1)	43.6 ± 1	33.4 ± 7.1
VS (g L−1)	27.1 ± 1.1	23.6 ± 4.5
VS/TS (%)	62 ± 1	71 ± 3
CODt (g L−1)	44.7 ± 5	38 ± 8
COD1.2µm (mg L−1)	325 ± 31	205 ± 68
sCOD (mg L−1)	275 ± 28	80 ± 25
Sol Proteins (mg COD L−1)	203 ± 15	78 ± 18
Sol Carbohydrates (mg COD L−1)	24 ± 2	8.5 ± 5
N-NH4 (mg L−1)	90 ± 10	105 ± 10
P tot (g kg−1 TS)	18.6 ± 1.8	15.8 ± 1.5
N tot (g kg−1 TS)	50 ± 3	51 ± 2
BMP (mL CH4 g−1 VSfed)	0.11 ± 0.01