Hydrogen production volatile fatty acids

Sasaki, K., Takeno, K., and Emoto, Y. (1996). Utilization of organic acids and volatile fatty acids and hydrogen production by photosynthetic bacteria. J. Soc. Water. Environ. 19, 63-70, (in Japanese). 

Photosynthetic bacteria can rapidly assimilate volatile fatty acids and grow. Because it assimilates organic compounds, hydrogen production from various fatty acids has been investigated. As for volatile fatty acids, lactate obtained after lactate fermentation of carbohydrates and acetate contained in processed solution after methane fermentation can be used as a substrate. 

Schmidt described the products of fermentation of carbohydrate as consisting of the gases carbon dioxide, hydrogen and methane and lower volatile fatty acids which were for the most part absorbed by the intestinal wall. The fermentation products that were not absorbed were excreted, either mixed with the feces or as flatus. Putrefaction of protein produced... 

Argun H, Kargi F, Kapdan IK (2008a) Light fermentation of dark fermentation effluent for bio-hydrogen production by different Rhodobacter species at different initial volatile fatty acid (VFA) concentrations. Int J Hydrog Energy... 

Steinbusch KJJ, Mamelers HVM, Buisman CJN. 2008. Alcohol production through volatile fatty acids reduction with hydrogen as electron donor by mixed cultures. Water Res. 42 4059-4066. 

Uyar, B., Eroglu, I., Yiicel, M., Giindtiz, U., 2009. Photofermentative hydrogen production from volatile fatty acids present in dark fermentation effluents. International Journal of Hydrogen Energy 34, 4517—4523. 

The overall yield of radiolysis products is relatively low and their distribution will depend on the fatty acid composition of the triglycerides. In meats irradiated in the absence of oxygen, low levels of the free fatty acid, the associated propanedioldiester, hydrogen, and products derived from the triglyceride radical are to be expected. Much lower yields of volatile hydrocarbons are produced that provide insight into other scission processes and reaction pathways [27, 30, 31],... 

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