Christine Idler

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Grassland biomass is suitable in numerous ways for producing energy. It is well established as feedstock for biogas production. The aim of this review is to summarize current knowledge on suitability and sustainability of grassland biomass for anaerobic digestion. In the first section grassland management for biogas feedstock as well as specifics of(More)
Effects of the ensiling process, storage periods of up to 1 year and several chemical and biological silage additives on biomethanation were assessed for maize, sorghum, forage rye and triticale with the aim to identify optimised conditions for silage production of crops used as feedstock in biogas plants. Ensiling, prolonged storage and biological silage(More)
Ensiling plant material with the aid of lactic acid bacteria (LAB) is a common agricultural practice for conserving forages independently of the time point of harvest. Despite ensiling being a natural process, it can be improved by the treatment of the harvested forage with starter cultures before storage. Within this context, Lactobacillus plantarum (L.(More)
Die Lagerung von erntefrischen Holzhackschnitzeln in unbelüfteten Haufen ist zwangsläufig mit der Entwicklung von Mikroorganismen und mit Lagerverlusten verbunden. In vorliegendem Beitrag werden mehrjährige Ergebnisse praxisnaher Lagerversuche von Hackgut aus Kurzumtriebspappeln und anderen Baumarten vorgestellt und dabei insbesondere auf den Einfluss der(More)
The contamination of minimally processed fresh products such as fresh-cut Iceberg lettuce with microorganisms especially Escherichia coli and Salmonella spp. is a serious safety problem in the fresh food business. Therefore, the elimination of such microorganisms on sliced Iceberg lettuce by washing with water, ozonated water (1.5 ppm ozone concentration)(More)
Methane production characteristics and chemical composition of 405 silages from 43 different crop species were examined using uniform laboratory methods, with the aim to characterise a wide range of crop feedstocks from energy crop rotations and to identify main parameters that influence biomass quality for biogas production. Methane formation was analysed(More)
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(More)
AIMS The purpose of this study was to investigate the effects of compaction and air infiltration on the bacterial community structure during the fermentation process and the aerobic exposure phase of grass silage. METHODS AND RESULTS Perennial ryegrass was ensiled at laboratory scale in a high-density (HD) and low-density (LD) compaction variant. Silages(More)
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