Effect of Individual Components of Lignocellulosic Biomass on Methane Production and Methanogen Community Structure - Publikacja - MOST Wiedzy

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Effect of Individual Components of Lignocellulosic Biomass on Methane Production and Methanogen Community Structure

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One of the major factors that influences the economic feasibility of biogas production is the availability of digestible feedstocks. There is little research on the influence of the chemical composition of biomass on biogas synthesis, especially with regard to the content of lignocellulosic materials. Therefore, the aim of this study was to estimate how differences in the content of cellulose and lignin in lignocellulosic biomass influence the concentrations of individual volatile fatty acids (VFAs) and biogas production. Additionally, the structure of the methanogenic community was examined. The removal of fibrous and non-fibrous materials, the concentrations of individual VFAs, methane production and methanogen community structure were examined during digestion of Zea mays L. and Miscanthus sacchariflorus silages. Organics were removed with higher efficiency during the digestion of Z. mays silage than during digestion of M. sacchariflorus. This was due to the higher non-fibrous carbohydrates content in Z. mays than in M. sacchariflorus. In both digesters, propionate predominated throughout experiment. The methanogenic community in the digester fed with Z. mays was more diverse than that in the digester with M. sacchariflorus. Analysis of 16S rRNA sequences showed that six acetoclastic and four hydrogenotrophic methanogens were present in the digester fed with Z. mays L., while five acetoclastic and three hydrogenotrophic methanogens were in the digester fed with M. sacchariflorus. The abundance of Methanosarcina correlated significantly with the concentration of all analyzed VFAs.

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Kategoria:
Publikacja w czasopiśmie
Typ:
artykuł w czasopiśmie wyróżnionym w JCR
Opublikowano w:
Waste and Biomass Valorization nr 11, strony 1421 - 1433,
ISSN: 1877-2641
Język:
angielski
Rok wydania:
2018
Opis bibliograficzny:
Tomasz P., Klimiuk E., Bułkowska K., Kowal P., Ciesielski S.: Effect of Individual Components of Lignocellulosic Biomass on Methane Production and Methanogen Community Structure// Waste and Biomass Valorization. -Vol. 11, (2018), s.1421-1433
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1007/s12649-018-0434-3
Weryfikacja:
Politechnika Gdańska

wyświetlono 157 razy

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