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Improving aerobic stability and biogas production of maize silage using silage additives
- Source :
- Bioresource Technology. 197:393-403
- Publication Year :
- 2015
- Publisher :
- Elsevier BV, 2015.
-
Abstract
- The effects of air stress during storage, exposure to air at feed-out, and treatment with silage additives to enhance aerobic stability on methane production from maize silage were investigated at laboratory scale. Up to 17% of the methane potential of maize without additive was lost during seven days exposure to air on feed-out. Air stress during storage reduced aerobic stability and further increased methane losses. A chemical additive containing salts of benzoate and propionate, and inoculants containing heterofermentative lactic acid bacteria were effective to increase aerobic stability and resulted in up to 29% higher methane yields after exposure to air. Exclusion of air to the best possible extent and high aerobic stabilities should be primary objectives when ensiling biogas feedstocks.
- Subjects :
- Environmental Engineering
Silage
Biomass
Bioengineering
Benzoates
Zea mays
Methane
chemistry.chemical_compound
Biogas
Anaerobic digestion
Ensiling
Food science
Waste Management and Disposal
Microbial inoculant
Methane yield
chemistry.chemical_classification
Renewable Energy, Sustainability and the Environment
Air
General Medicine
Biomass storage
Agronomy
chemistry
Biofuels
Fermentation
Propionate
Aerobic deterioration
Propionates
Biotechnology
Subjects
Details
- ISSN :
- 09608524
- Volume :
- 197
- Database :
- OpenAIRE
- Journal :
- Bioresource Technology
- Accession number :
- edsair.doi.dedup.....b3c66c05a0cbf55051f6b05096424bc2