초록
<P><B>Abstract</B></P> <P>The use of industrial fish processing waste as the only substrate to produce biogas may be an efficient procedure due to its characteristic lipid content. The relationship between the microbial community and the biogas/methane production was evaluated during the anaerobic digestion at 35 °C of two waste types derived from the fish processing industry. The experiments showed that fish waste (FW) and fish crude oil waste (FCOW) produced methane at 540.5 CH<SUB>4</SUB> mL gVS<SUP>−1</SUP> and 426.3 CH<SUB>4</SUB> mL gVS<SUP>− 1</SUP>, respectively. <I>Clostridia, Synergistia</I> were the predominant bacterial classes and the <I>Methanomicrobia</I> archeal class at the end of the anaerobic digestion in both substrates. The fungal community was similar in both treatments. The fungal diversity included orders of the Ascomycota phylum: <I>Eurotiales, Sordariales, Saccharomycetales, Sporidiales,</I> <I>Capnodiales</I> and <I>Microascales</I>. Representatives of Basidiomycota included <I>Wallemiales</I> and <I>Tremellales</I>. This research demonstrated that industrial fish processing waste can be efficiently converted to methane in a mono-digestion process.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Biogas can be successfully produced through the mono-digestion of fish waste. </LI> <LI> The waste from the first fish processing step produced the highest volume of biogas. </LI> <LI> Fungi, Bacteria, and Archaea were capable of using the fish waste to perform methanogenesis. </LI> <LI> The fungal community diversity was very similar in both fish waste experiments. </LI> </UL> </P>