Biohydrogen microbial fermentation

Tannins were primarily considered as anti-nutritional biochemicals due to then-adverse effects on feed intake and nutrient utilization (Kumar and Vaithiyanathan 1990). Nevertheless in recent years, they have been recognized as nsefnl phytochemicals for beneficially modulating the rumen microbial fermentation. The effects of tannins on ruminant production have been published in the past, which primarily focused on the adverse effects of tannins on animal systan, with some discussion on their positive effects on protein metabolism and prevention of bloat (Mangan 1988 Kumar and Vaithiyanathan 1990 Aerts et al. 1999 Barry and McNabb 1999 McSweeney et al. 2001a Min et al. 2003 Mueller-Harvey 2006 Waghom 2008). This chapter focuses on the effects of tannins on ruminal microbial populations that affect N metabolism, methanogenesis and ruminal biohydrogenation process in the mmen. 

Calsamiglia S, Busquet M, Cardozo PW, CastUlejos L, Ferret A (2007) Essential oils as modifiers of mmen microbial fermentation. J Dairy Sci 90 2580-2595 Chifliard Y, Glasser F, Ferlay A, Bernard L, Rouel J, Doreau M (2007) Diet, rumen biohydrogenation and nutritional quality of cow and goat milk fat. Eur J Lipid Sd Technol 109 828-855... 

Single-strand conformation polymorphism (SSCP) Wastewater bioreactors (including denitrifying and phosphate-removal system, Chinese traditional medicine wastewater treatment system, beer wastewater treatment system, fermentative biohydrogen producing system, and sulfate-reduction system) Microbial community structures, diversity and distribution in different wastewater treatment processes, and relationship between the structures and the status of processes [157]... 

Rittmann, S., Herwig, C. (2012). A comprehensive and quantitative review of dark fermentative biohydrogen production. Microbial Cell Factories, 11, 115. 

This section will provide a short description of two types of processes that rely on bioconversion based on prokaryotic mixed cultures anaerobic digestion for the production of methane (biomethanation) and mixed culture fermentation for the production of biohydrogen. Hydrogen production by photofermentation is also included in this section since, even if it requires a very specialized microbial consortium, it is performed under mixed non-sterile conditions. 

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