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Dissertation
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Der Einfluss von Befahrung alter Rückegassen mit einem schweren Rückezug auf mechanische, strukturelle und funktionelle Eigenschaften eines mit Fichten bestockten Lössbodens in Abhängigkeit von der Fahrwerkkonfiguration
(2023)
Bei der maschinellen Holzernte mit schweren Holzerntefahrzeugen wird der befahrene Waldboden deformiert und damit potenziell in seiner forstwirtschaftlichen Produktivität eingeschränkt. Mögliche Lösungsansätze für diese unerwünschte Nebenwirkung des Technikeinsatzes sind die Beschränkung der Befahrung des Waldbodens auf permanenten Rückegassen und die Verwendung tragender Bogiebänder. Es besteht jedoch eine Forschungslücke zur Veränderung der physikalischen Eigenschaften von vorverdichtetem Boden bestehender Rückegassen ...
Dissertation
Solar energy integration in agro-processing in the tropics: a case study of large and small-scale cassava processing
(2023)
Agro-processing is key to reducing post-harvest losses. Agro-processing is defined as a set of techno-economic activities applied to all the products originating from the agricultural farm, livestock, aqua cultural sources, and forests for their conservation, handling, and value-addi-tion to make them usable as food, feed, fibre, fuel, or industrial raw materials [12]. Processing can be sophisticated (relying on industrial plants and machinery) or simple (depending on the sun or indigenous small-scale processes). The ...
Dissertation
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Market-driven harvesting of non-timber forest products and the governance of communal forests in the south-east lowveld of Zimbabwe.
(2023-07)
Despite forests providing a wide range of important products and services for much of Zimbabwe’s population, natural forests are threatened by deforestation. The highest rates of deforestation occur in communal forests. Communal forest resources in Zimbabwe show evidence of increased degradation and signs of a breakdown of local institutions for resources management. These signs of a breakdown of local institutions are coupled with evidence of a lack of any emerging alternative institutions for conservation of forest ...
Dissertation
Development of a new methodology in sensory science to detect the intention-behaviour gap in organic food consumption and investigate the effect of this gap on consumer’s subjective wellbeing
(2020-08)
Aktuelle Umweltherausforderungen wie die globale Erwärmung, der Klimawandel und der Verlust der biologischen Vielfalt und der natürlichen Ressourcen hängen mit dem Verhalten der Menschen zusammen. Nicht nachhaltige Produktion und Konsum erklären die meisten dieser Herausforderungen. Daher interessieren sich immer mehr Verbraucher für Bio-Lebensmittel, um ihr Engagement für ein nachhaltigeres Lebensmittelverhalten zu demonstrieren. Infolgedessen ist der Markt für Bio-Lebensmittel in letzter Zeit gewachsen. Verbraucher ...
Dissertation
Entwicklung und Erprobung einer kognitiv-sensorischen Methodik für die Erhöhung der Reliabilität von erhobenen Daten in Bezug auf Nachhaltigkeit und Konsumentenverhalten in Deutschland und in der Ukraine
(2023)
Die menschlichen Sinne werden als Brücke zwischen der Mitwelt und dem menschlichen Körper sowie als entscheidender Faktor bei der Bildung von Ernährungserfahrungen beginnend schon im Mutterleib betrachtet. Diese Studie zielt darauf ab, wissenschaftlich zu untersuchen, wie der Wandel hin zu einer nachhaltigen Ernährung unterstützt werden kann, indem das Konsumentenverhalten sowie deren Flexibilität und Änderungsbereitschaft mithilfe einer neuen kognitiv-sensorischen Methode bewertet und bemessen wird.
Im Literaturteil ...
Dissertation
Lignocellulosic biorefinery with a thermo-biological pretreatment concept
(2023)
There is great interest, not only in technologically advanced societies, in developing innovative sources of raw materials, especially lignocellulosic biomasses such as cereal straw, which do not interfere with food production. In Germany, 4 – 9 million tons of cereal straw, mainly wheat, are utilized annually, corresponding to an energy potential of 57 – 129 PJ/a. Lignocellulose, found in plant cell walls, consists of hemicellulose, cellulose, and lignin, and it requires complex fractionation to enable its polymers ...
Dissertation
Denaturation mechanism of whey protein by using the hot extrusion technology
(2022-02)
Milk proteins are one of the heat-sensitive nutritional components, especially whey proteins changing their structure through thermal treatment, consequently denaturizing and aggregating. The transformation of native whey proteins structure in presence of shear stress resulted in the microparticulation, which affected the functional properties. Many authors investigated these parameters with different conditions; however, understanding the combination of relevant parameters of the microparticulation process of whey ...
Dissertation
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Yield performance and weed control efficiency of organically managed silage maize double cropping systems
(2023)
Maize is among the three most important crops worldwide, while its multifunctional nature allows a diversified use. However, the traditional (silage) maize production often has negative side-effects related to the unprotected soil surface — e.g., erosion, weed pressure and related mechanical weed control. There are several alternative management systems to enhance the sustainability of (silage) maize production. However, the means and strength of influence are still unclear in some cases. Therefore, the current thesis ...
Dissertation
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Management effects on soil microbial functions at a South-Indian rural-urban interface
(2023-06)
Urbanization leads to effects on many aspects of ecosystems and societies. Among the affected are agricultural systems and, specifically, soils. One of the most evident pathways of urbanization effects on agricultural soils is through an increased demand for agricultural commodities requiring agricultural intensification, hence, changes in management practices that alter soils.
In this context, the purpose of this study was to understand how the main agricultural management practices taking place in urbanizing ...
Dissertation
Process optimisation and non-destructive quality attributes monitoring during drying: A case study of celeriac slices and characterisation of its powder
(2023)
This study investigated strategies applied in drying technology to produce an optimised quality of plant-sourced food while considering environmental and sustainability aspects based on a case study of celeriac and powder, respectively. The I-optimal design of response surface methodology with 30 experiment runs was applied for process optimisation. Pre-drying treatments (blanching at 85 °C, 3 min; dipping in 1% citric acid solution, 3 min; no pre-drying treatment), drying temperatures (50, 60, and 70 °C), air ...