Abstract
The macroalgae consortium biomass in the Mexican Caribbean represents an emerging and promising biofuel feedstock. Its biological pretreatment and potential for energetic conversion to biomethane were investigated, since some macroalgae have hard cell walls that present an obstacle to efficient methane production when those substrates are used. It has been revealed by anaerobic digestion assays that pretreatment with a Bm-2 strain (Trametes hirsuta) isolated from decaying wood in Yucatan, Mexico was 104 L CH4 kg·VS−1; In fact, the fungal pretreatment produced a 20% increase in methane yield, with important amounts of alkali metals Ca, K, Mg, Na of 78 g/L, ash 35.5% and lignin 15.6%. It is unlikely that high concentrations of ash and alkali metals will produce an ideal feedstock for combustion or pyrolysis, but they can be recommended for a biological process.
Highlights
There are a large number of species of macroalgae, the majority of shoreline inundation incidents are caused by two genera: Ulva is a green macroalga, which causes green tides, and Sargassum, a golden/brown floating or pelagic macroalga responsible for golden tides, especially in the Caribbean and West Africa [1].The genus Sargassum contains over 350 species
Our results demonstrate that wheat bran is an efficient inducer for the production productionof ofthis thisenzyme enzymeat atan anextracellular extracellularlevel
Bm-2 strain strain has a battery of laccase genes, which are differentially expressed when different phenolic compounds has a battery of laccase genes, which are differentially expressed when different phenolic compounds are arepresent presentin in the the lignin lignin structure structure[7]
Summary
There are a large number of species of macroalgae, the majority of shoreline inundation incidents are caused by two genera: Ulva is a green macroalga, which causes green tides, and Sargassum, a golden/brown floating or pelagic macroalga responsible for golden tides, especially in the Caribbean and West Africa [1].The genus Sargassum contains over 350 species. S. natans and S. fluitans, are holopelagic and the major contributory species in golden tides Both of these have a vegetative reproduction process, and do not physically connect to the ocean floor during their lifecycle [1]. Sargassum’s importance lies in its ecological role, and in the part it plays worldwide in oceanic carbon sequestration: the Sargassum of the Sargasso Sea is a net sink of CO2 , and represents 7% of the planet’s net “carbon pump”. It is the largest accumulation of macroalgae in the world, containing a total biomass of 10 million tons. One million tons of Sargassum passes through the Florida
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