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. 2021 Mar 17;16(3):e0248654. doi: 10.1371/journal.pone.0248654

Fig 1. The cumulative biogas yield of the batch experiments.

Fig 1

The substrates used were corn stover (CS), tomato waste (TW), and co-substrate (CoS, a mixture of CS and TW) with simple (VDI I.) and double (VDI II.) substrate loads. There are no significant differences between the cumulative biogas yield of substrates according to the Dunnett’s multiple comparison test (n = 3, p ≤ 0.05).