Paul D. Jensen

TL;DR: The discovery of divergent methyl-coenzyme M reductase genes in population genomes recovered from anoxic environments with high methane flux that belong to a new archaeal phylum, the Verstraetearchaeota, indicate that methanogen diversity is only beginning to understand and support an ancient origin for methane metabolism in the Archaea, which is changing the authors' understanding of the global carbon cycle.

TL;DR: The use of these approaches in combination with complementary imaging techniques, chemical isotope analyses and detailed reactor performance measurements provides a new opportunity to develop a fundamental understanding of how microbial community dynamics, interactions and functionality influence digester efficiency and stability.

TL;DR: It is concluded that deterministic processes may play a larger role in microbial community dynamics than currently appreciated, and under controlled conditions it may be possible to reliably predict community structural and functional changes over time.

TL;DR: This study presents a novel pretreatment strategy based on free nitrous acid (FNA or HNO2) to enhance methane production from WAS, and indicated increased hydrolysis rate and methane potential were related to an increase in rapidly biodegradable substrates, which increased with increased FNA dose, while the slowly biodegradation substrates remained relatively static.

TL;DR: Kinetics improvement was linked to the mitigation of inhibitory compounds, particularly fats dilution, and the exception was co-digestion of paunch with lipids, which resulted in an improved final yield with model based analysis indicating the presence of pauncy improved degradability of the fatty feed.