Recently, biogas production from algae through anaerobic digestion
has received a remarkable attention due to the presence of
high polysaccharides (agar, alginate, carrageenan, laminaran, and
mannitol) with zero lignin and low cellulose content. Mostly, seaweeds
are considered as the excellent feedstock for the production
of biogas. Several workers have demonstrated the fermentation of
various species of algae like Scenedesmus, Spirulina, Euglena, and
Ulva for biogas production