Silage as source of bacteria and electrons for dark fermentative hydrogen production

Two-Stage Anaerobic Digestion Process Combining Pre-digestion with Methanization

“…Relatively, in the two stage operation, high methane yields were reached through the optimized first-stage approach. Methane produced up to 68%, similarly to that found by previous authors [25,26,27]. The same authors [26], reported also methane yields, for various kinds of substrates and the results of the present work were also coherent with previous experience by Tenca et al obtained with the same substrate [28,29,30].…”

Pre-treatment technologies for dark fermentative hydrogen production: Current advances and future directions

“…It should be emphasised that both inoculum type and pre-treatment method have a significant effect on microbial communities and therefore fermentation products. For instance, Enterobacter species (which are facultative bacteria) have been detected in inocula such as composts (Jeong et al, 2013;Li et al, 2012;Song et al, 2012a) or cultures pre-treated with aeration (Jeong et al, 2013;Ren et al, 2008;Wang et al, 2012). The impact of pre-treatments on growth of different populations may be demonstrated by electron flow towards different products.…”

Microscopic analysis of wheat straw cell wall degradation by microbial consortia for hydrogen production

“…In this study, epiphytic microflora had the highest hydrogen production rate and specific hydrogen production of the tested inocula (Table 1). Few studies have examined hydrogen production by indigenous microorganisms, including grass silage, rotted wood crumb, and unsterile WS, which is a source of microorganisms for hydrogen production from lignocellulosic substrates [8,9,31]. The results of the epiphytic microorganism are notable, because it evolved to degrade the cell wall of the plants in which they grow, highlighting their potential application in biofuel production from lignocellulosic substrates.…”