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Chapter
Gründächer im urbanen Raum und ihre Ökosystemleistungen
Urbane blau-grüne Infrastrukturen (Gründächer, grüne Fassaden, Baumrigolen etc.) erbringen wichtige Ökosystemleistungen. Sie dienen als Retentionsflächen für Niederschlagswasser und ermöglichen damit ein integ...
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Article
Open AccessDevelopment and Validation of a Simple, Selective, and Accurate Reversed-Phase Liquid Chromatographic Method with Diode Array Detection (RP-HPLC/DAD) for the Simultaneous Analysis of 18 Free Amino Acids in Topical Formulations
Even though there are reported methods for the quantification of free amino acids (FAAs) in biological products, no work has been done on the analysis of these substances in formulations. Moreover, further res...
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Article
Open AccessFree amino acid contents of selected Ethiopian plant and fungi species: a search for alternative natural free amino acid sources for cosmeceutical applications
Free amino acids (FAAs), the major constituents of the natural moisturizing factor (NMF), are very important for maintaining the moisture balance of human skin and their deficiency results in dry skin conditio...
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Article
Open AccessA potential phosphorous fertilizer for organic farming: recovery of phosphorous resources in the course of bioenergy production through anaerobic digestion of aquatic macrophytes
A major problem with farming systems is the deficiencies in phosphorus (P) due to fixation in soils, erosion and run-off, and exports of herbal and animal products. P resources for the compensation of these lo...
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Article
Open AccessMixed silage of Elodea and wheat straw as a substrate for energy production in anaerobic digestion plants
Waterweeds (Elodea nuttallii and Elodea canadensis) are invasive neophytes, which have been proliferating at a phenomenal rate during the last decades in German waterways. In case of overgrowth, the strong coveri...
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Article
Open AccessAnaerobic digestion of mixed silage of waterweed biomass and wheat straw in a long-term semi-continuous biogas production process
As part of the maintenance of lakes and rivers, large quantities of aquatic biomass are produced every year. Neophytes, such as Elodea nuttallii, compete with native species and cause a disturbance to the ecosyst...
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Article
Open AccessThe study of the variability of biomass from plants of the Elodea genus from a river in Germany over a period of two hydrological years for investigating their suitability for biogas production
Aquatic plants are an important component of aquatic ecosystems. They are valuable for the oxygen and carbon dioxide household and generate habitats especially for small fish and other small organisms. However...
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Article
Open AccessProcess upsets in a full-scale anaerobic digestion bioreactor: over-acidification and foam formation during biogas production
Biogas plays a worthwhile role as a renewable, storable energy source. Anaerobic digestion (AD) is the core process in biogas production. The two most common process upsets that occur during this biotechnologi...
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Article
Open AccessFoam formation in full-scale biogas plants processing biogenic waste
The proportion of biogas in the mix of renewable energies is still remarkably high. The process of anaerobic digestion (AD) provides the basis of biogas production but often leads to excessive foaming. Identif...
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Article
Open AccessFloating layer formation, foaming, and microbial community structure change in full-scale biogas plant due to disruption of mixing and substrate overloading
The use of biogas as renewable resource of energy is of growing interest. To increase the efficiency and sustainability of anaerobic biogas reactors, process failures such as overacidification, foaming, and fl...
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Article
Open AccessComparative review of foam formation in biogas plants and ruminant bloat
This review gives an overview of the current knowledge concerning the problem of foam formation in the process of anaerobic digestion in biogas plants that utilize renewable resources or biogenic waste materia...
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Article
Substrate utilization by recombinant Yarrowia lipolytica growing on sucrose
We report the study of the dynamics of substrate utilization by the genetic modified strain Yarrowia lipolytica H222-S4(p67ICL1) T5. In contrast to its wild-type equivalent, this recombinant strain is able to exc...
