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Scientia Agropecuaria
versão impressa ISSN 2077-9917
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GUERRERO-TOLEDO, Flor de María et al. Biochemical methane potential of chicken litter added with propionate in mesophilic conditions. Scientia Agropecuaria [online]. 2019, vol.10, n.2, pp.307-311. ISSN 2077-9917. http://dx.doi.org/10.17268/sci.agropecu.2019.02.17.
The objective of the work was to determine the biodegradability potential of chicken litter in combination with a high concentration of propionate, using a microbial consortium previously adapted to high amounts of this metabolite. The chicken litter 3 % of total solids (TS) with 4895 ppm of propionate was degraded under mesophilic conditions using microcosms with a working volume of 250 mL. The accumulated methane yield results indicated triple sigmoidal behavior; which could be attributed to the difference in the degradation rates of the components, such as macromolecules and volatile fatty acids. The biochemical potential of methane was 364,52 mL CH4 gVSfe -1.
Palavras-chave : anaerobic digestion; biogas; Biochemical Methane Potential; Gompertz model.