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Aufsatz
The potency of robusta coffee pulp as a vinegar product
(2023-11-30)
Coffee processing produces 40-50 % of by-products that can damage coffee plants and cause environmental pollution. The coffee pulp as waste can be used for producing acetic acid solution as a preservative and hand-washing agent to prevent infection. The fermentation process can affect the quality of the acetic acid solution. This study aims to analyse the effect of yeast types and time fermentation as well as to determine the characteristics of acetic acid solution from Robusta coffee pulp. The experiment consists ...
Aufsatz
Cricket powder (Acheta domesticus) as a lean pork meat replacer in cooked sausages
(2023-08-29)
The incorporation of insects in everyday foods is a developing area. Therefore, the aim of this study was to determine the optimal percent replacement (5.0, 7.5 or 10.0%) of lean pork meat with cricket power (CP) in cooked sausages. For this purpose, the quality and safety were evaluated through the following parameters: pH, moisture, water activity, TBA value, colour (L*, a*, b*), texture and sensory profile, microbiological status and microstructure during seven-day cold storage. The pH of cooked sausages with CP ...
Zeitschrift
Vol. 11 No. 4 (2023)
(Specialized Partnerships in Sustainable Food Systems and Food Sovereignty, Faculty of Organic Agricultural Sciences, the University of Kassel, Germany and the Federation of German Scientists (VDW), 2023-11-30)
Zeitschrift
Vol. 11 No. 5 (2023)
(Specialized Partnerships in Sustainable Food Systems and Food Sovereignty, Faculty of Organic Agricultural Sciences, the University of Kassel, Germany and the Federation of German Scientists (VDW), 2023-12)
Aufsatz
Antioxidant activity of a mixture of water-soluble tempeh extract with whey powder that has undergone a Maillard reaction
(2021-12-20)
High amino acid content in tempeh and lactose in whey powder can be combined to perform Maillard reaction. So, it can be used to produce functional food products. This is caused by the formation of Amadori and melanoidin as water-soluble compounds which are reported to have high antioxidant capacity and produce a preferred flavor. The general objective of the study was to obtain an optimum process condition in a mixture of water soluble tempeh extract and whey powder with the highest antioxidant capacity (100 mL). ...
Dissertation
Investigation of drying behavior and color development of beef slices for development of non-invasive monitoring approaches
(2021)
Meat drying has a long tradition worldwide and technically dried meat is increasingly valued as a low-fat snack or high-protein food product. Convection drying is widely used in industrial food preservation and has to provide high process efficiency and high product qualities, which can be contradictory. Therefore, it is important to understand the changes that occur in the product in order to develop drying strategies that consider process and product efficiency each at an acceptable level. The objective of this ...
Dissertation
Technical and Environmental Assessment of Energy and Material Production from Rural and Urban Residual Biomass
(2020-04)
Die vorliegende Arbeit umfasst Studien zur Untersuchung technischer und ökologischer Aspekte bei der Nutzung von Restbiomassen in den Nutzungspfaden Energieerzeugung und Aktivkohleproduktion. Im Mittelpunkt der jeweiligen Untersuchung stand das Verfahren zur integrierten Erzeugung von Festbrennstoff und Biogas aus Biomasse (IFBB) und dessen Einfluss auf technische und ökologische Aspekte bei der Verwertung von Restbiomassen. Im Zuge von Naturschutz- und Landschaftspflegemaßnahmen auf extensiv bewirtschafteten ...
Dissertation
Towards crop communities: exploring wheat diversity, wheat-pea species mixtures and farming practice in a food system context
(2022-06)
This thesis combines experimental work on heterogeneous crop populations (HP) and species mixtures (SM) with a social scientific and participatory approach. Chapter 1 introduces crop communities as a concept to integrate multiple approaches to diversify farming systems. HPs provide intraspecific and SM interspecific diversity in crop communities. A key challenge for the genetic improvement of HPs, especially for root traits is to combine effective selection to improve HPs while maintaining intraspecific diversity. ...
Dissertation
Analysis of key pungent compounds in mustard products: A comparison of sensory and chemical–analytical determinations
(2020)
The consumption of mustard, horseradish and wasabi is characterized by a pungent sensation and lachrymatory effect primarily induced by allyl isothiocyanate (AITC). This study aimed to check the possible correlation between sensory-perceived pungency and the quality-determining pungency-inducing ingredients of mustard.
Primarily, the detection thresholds of sinigrin in a water-based matrix and AITC in water- and oil-based matrices were determined in a prestudy and a main study. In the prestudy, the resulting value ...
Aufsatz
Climate change impact on economic and irrigation requirements for sugarcane crop in Egypt
(2021-02-12)
Availability of irrigation water is considered one of the major challenges faced by Egypt during current time and will be more difficult in the future with the limited water resources and linearly increase of population. The current study investigates irrigation demand for sugarcane cultivation areas in the Middle and Upper Egypt Governorates (Menia, Asyut, Sohag, Qena, Luxor and Aswan) during current time and under RCPs scenarios. The current data was collected from 1971 till 2000. The RCP data were collected for ...