Dark Fermentation

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online.Dark fermentation is the fermentative conversion of organic substrate to biohydrogen, it is a complex process manifested by diverse group of bacteria by a series of biochemical reactions involving three steps similar to anaerobic conversion. Dark fermentation differs from photofermentation because it proceeds without the presence of light. Fermentative/hydrolytic microorganisms hydrolyze complex organic polymers to monomers which further converted to a mixture of lower molecular weight organic acids and alcohols by obligatory H2 producing acidogenic bacteria. Utilization of wastewater as a potential substrate for biohydrogen production has been drawing considerable interest in recent years especially in dark fermentation process.

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