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Biological Pretreatment of Mexican Caribbean Macroalgae Consortiums Using Bm-2 Strain (Trametes hirsuta) and Its Enzymatic Broth to Improve Biomethane Potential

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Unidad de Energía Renovable, Centro de Investigación Científica de Yucatán AC, Carretera Sierra Papacal-Chuburná Puerto, Km 5, Sierra Papacal, Mérida, Yucatán CP 97302, Mexico
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Laboratorio GeMBio, Centro de Investigación Científica de Yucatán AC, Calle No. 130 43 x 32 y 34 Col. Chuburná de Hidalgo, Mérida, Yucatán CP 97205, Mexico
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Author to whom correspondence should be addressed.
Energies 2018, 11(3), 494; https://doi.org/10.3390/en11030494
Received: 30 January 2018 / Revised: 15 February 2018 / Accepted: 19 February 2018 / Published: 27 February 2018
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. View Full-Text
Keywords: biological pretreatment; macroalgae consortium; biomethane potential; Trametes hirsuta biological pretreatment; macroalgae consortium; biomethane potential; Trametes hirsuta
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MDPI and ACS Style

Tapia-Tussell, R.; Avila-Arias, J.; Domínguez Maldonado, J.; Valero, D.; Olguin-Maciel, E.; Pérez-Brito, D.; Alzate-Gaviria, L. Biological Pretreatment of Mexican Caribbean Macroalgae Consortiums Using Bm-2 Strain (Trametes hirsuta) and Its Enzymatic Broth to Improve Biomethane Potential. Energies 2018, 11, 494.

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