Fig. 1From: Enhancing methane production from food waste fermentate using biochar: the added value of electrochemical testing in pre-selecting the most effective type of biocharTime course of total VFAs (a), n-butyrate (b), propionate (c), and acetate (d) concentration in bottles supplemented with conductive particles and in unamended controls, during the 1st feeding cycle. Error bars represent the standard deviation of two replicate bottlesBack to article page