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Table 4 Differences in microbial composition at the phylum level during dry co-digestion of food waste and pig manure using four different operating conditions (mean ± SD)

From: Exploring the roles of and interactions among microbes in dry co-digestion of food waste and pig manure using high-throughput 16S rRNA gene amplicon sequencing

Relative abundance (%) R1 (digestate, FW/PM = 50:50) R2 (digestate, FW/PM = 75:25) R3 (sludge, FW/PM = 50:50) R4 (sludge, FW/PM = 75:25)
Euryarchaeota 5.0 ± 2.2 7.9 ± 4.0 4.0 ± 1.8 7.4 ± 5.2
Actinobacteria 2.5 ± 0.3 2.8 ± 0.5 6.3 ± 1.2 5.9 ± 1.3
Bacteroidetes 28.9 ± 8.8 18.5 ± 10.5 10.9 ± 5.0 7.6 ± 2.0
Chloroflexi 1.1 ± 0.3 1.0 ± 0.4 7.5 ± 2.3 7.5 ± 2.8
Firmicutes 49.9 ± 4.7 52.4 ± 2.5 39.4 ± 7.4 33.7 ± 8.0
Proteobacteria 4.4 ± 0.5 6.0 ± 1.1 14.8 ± 2.3 18.3 ± 5.3
Synergistetes 2.4 ± 0.3 3.1 ± 0.4 7.0 ± 1.5 6.7 ± 1.1
Thermotogae 4.2 ± 1.5 5.9 ± 3.3 2.6 ± 1.3 3.5 ± 1.0
WWE1 0.3 ± 0.1 0.3 ± 0.2 2.2 ± 1.1 3.4 ± 1.2
Groups Statistical analysis (P values)
Condition Inoculum FW/PM R1 vs R2 R1 vs R3 R1 vs R4 R2 vs R3 R2 vs R4 R3 vs R4 Phase Phase I vs II Phase I vs III Phase II vs III
Euryarchaeota 0.040* 0.149 0.014* 0.945 1.000 1.000 0.035* 1.000 0.235 0.000*** 0.003** 0.000*** 0.016*
Actinobacteria 0.000*** 0.000*** 0.706 1.000 0.000*** 0.000*** 0.000*** 0.001*** 1.000 0.725 1.000 1.000 1.000
Bacteroidetes 0.000*** 0.000*** 0.019* 0.235 0.000*** 0.000*** 0.228 0.005** 1.000 0.023* 0.669 0.019** 0.229
Chloroflexi 0.000*** 0.000*** 0.935 1.000 0.000*** 0.000*** 0.000*** 0.000*** 1.000 0.157 1.000 1.000 1.000
Firmicutes 0.000*** 0.000*** 0.922 1.000 0.007** 0.000*** 0.000*** 0.000*** 1.000 0.030* 0.264 0.025* 0.715
Proteobacteria 0.000*** 0.000*** 0.039* 0.278 0.000*** 0.000*** 0.012* 0.000*** 1.000 0.276 0.320 0.105 0.490
Synergistetes 0.000*** 0.000*** 0.195 0.171 0.000*** 0.000*** 0.002** 0.007** 1.000 0.983 1.000 1.000 1.000
Thermotogae 0.003** 0.001** 0.105 1.000 0.099 1.000 0.003** 0.119 1.000 0.002** 0.004** 0.006** 1.000
WWE1 0.000*** 0.000*** 0.251 1.000 0.001*** 0.000*** 0.001*** 0.000*** 0.866 0.265 1.000 1.000 1.000
  1. Only phyla with a relative abundance > 5% in at least one sample are shown
  2. *** P < 0.001, ** P < 0.01, * P < 0.05