Research

Funding: Das Projekt ist Teil der Modell- und Demonstrationsvorhaben (MuD) Tierschutz im Bundesprogramm Nutztierhaltung. Die Förderung erfolgt aus Mitteln des Bundesministeriums für Ernährung und Landwirtschaft (BMEL) aufgrund eines Beschlusses des deutschen Bundestages, Projektträger ist die Bundesanstalt für Landwirtschaft und Ernährung (BLE), Förderkennzeichen 2820MDT341., 399.935 EUR

Project Details:
The aim of this model and demonstration project is to scientifically evaluate (partially) mobile slaughtering of poultry and cattle and to communicate the results adequately into practice. Different types of (partially) mobile slaughter units will be analyzed with regard to their effects on the animals (animal welfare) and products from these animals (meat hygiene, meat quality), organizational feasibility, technical requirements, legal conformity and economy. Existing and new scientific findings for the optimization of the above-mentioned aspects will be tested for their suitability, and communicated and transferred into practice. The communication of the results will take place via specialist articles, leaflets/practice guides, specialist videos, homepages, online seminars and information events.

https://www.tiho-hannover.de/stronger

Cooperation Partners:

Forschungsinstitut für biologischen Landbau e.V. (FiBL)

Deutsche Landwirtschafts-Gesellschaft e.V. (DLG)

Funding: Drittmittelprojekt, gefördert durch die Fritz-Ahrberg-Stiftung., 100.000 EUR

Project Details:
The consumption of short-ripened and nitrite-reduced raw sausages can pose a risk to the consumer if a lack of drying and altered ripening processes allow pathogenic and spoilage-causing bacteria to multiply. Bacillus species are used as starter cultures in modern biotechnological processes, but also in traditionally fermented products. They are able to form so-called bacteriocins. These are ribosomally synthesised peptides with a high antibacterial activity. An application of these bacteriocins in sausage production can extend the shelf life and prevent the occurrence of pathogenic germs. As starter cultures, bacteriocin-forming bacteria can make an important contribution to the safe production of short-ripened and nitrite-reduced raw sausages.
In this project, Bacillus species that have not been investigated so far are tested for their antimicrobial properties against meat-relevant spoilage and zoonotic pathogens (e.g. Campylobacter spp., listeria and salmonella). With an already established high-throughput method on a laboratory scale, this can be done with a hundred isolates simultaneously. Cell-free culture supernatants are obtained, which are subsequently used to identify the potential bacteriocins. Promising Bacillus isolates are tested in a second step in short-ripened and nitrite-reduced raw sausage products as a supplement to established starter cultures.

Funding: Bundesministeriums für Bildung und Forschung (BMBF), 38.190 EUR

Project Details:
In the context of Listeria monocytogenes infections during pregnancy, neurodevelopmental disorders have been described as post-infectious long-term consequences in surviving children, such as cognitive deficits, learning disabilities or personality changes. Neurons migrate several centimeters through the growing brain to reach the correct position and form the proper connections that ensure normal brain structure and function. Our hypothesis is that Listeria monocytogenes infection causes surviving neural progenitor cells to mature more rapidly, and possibly migrate aberrantly. Aberrant migration may then result in defective synapses, some of which could cause network hyperexcitability. In order to study the functional (network) changes induced by infection with Listeria monocytogenes in the developing brain in vitro, in cells of the target species human, neurospheres (a model for brain development) are generated from human induced pluripotent stem cells in high throughput. These will be used for infection experiments in the joint project. Functional readouts will be used to investigate whether infection with Listeria monocytogenes affects the growth of neurites, the ability of growing neurons to migrate, or to form electrically active networks at different stages of neurosphere development. If the hypothesis is confirmed, additional underlying molecular signaling pathways will be investigated in order to identify therapeutic targets in the long term. In a workshop, interested researchers will be introduced to the culture and analysis of human fetal neurospheres after infection.

Cooperation Partners:

Prof. Dr. Sonja Bröer, FU Berlin

Funding: Drittmittelprojekt, gefördert durch Fritz-Ahrberg-Stiftung., 67.500 EUR

Project Details:
Sous vide cooking is the heating of raw ingredients under controlled temperature-time combinations in heat-stable vacuum bags. As with all LTLT cooking methods, the choice of a suitable temperature-time combination is the most important parameter for microbiologically safe food in sous vide-cooking. The aim of this study is to define microbiologically safe temperature-time combinations for the inactivation of pathogens in sous vide-cooked minced beef and pork. In addition, a characterization of technological and sensory aspects of the influence of the sous vide cooking method on hamburger patties is carried out.

Funding: Drittmittelprojekt, gefördert durch die Fritz-Ahrberg-Stiftung., 100.000 EUR

Project Details:
Raw sausage products are stabilised exclusively through a suitable fermentation process. This process, as well as additives and the quality of the raw materials, ultimately determine the safety of the end product. If nitrite is reduced or replaced in the recipe, the production parameters must be adjusted so as not to jeopardise the safety of the products. The consumption of short-ripened and nitrite-reduced raw sausages can pose a risk to the consumer if the lack of drying and altered ripening processes allow pathogenic and spoilage-causing bacteria to multiply.
Bacillus species are bacteria with a broad application profile in food production. They are used as starter cultures in modern biotechnological processes, but also in traditionally fermented products. They are able to form so-called bacteriocins. These are ribosomally synthesised peptides with a high antibacterial activity. Application of these bacteriocins in sausage production can extend the shelf life of food and prevent the occurrence of pathogenic germs. Due to their small size, bacteriocins can also penetrate biofilms or prevent their formation. As starter cultures, bacteriocin-forming bacteria can make an important contribution to the safe production of fermented products and thus contribute to increased safety of short-ripened and nitrite-reduced raw sausages. Bacteriocins also do not affect the sensory properties of food, nor the composition of the intestinal microbiota in humans, as they are degraded by proteases in the gastrointestinal tract. The bacteriocin nisin produced by Lactococcus lactis is approved as a food additive in Europe and has GRAS (generally recognised as safe) status in the USA.
For the reasons mentioned above, Bacillus strains that have not been investigated so far are to tested in the present project for their antimicrobial properties against meat-relevant spoilage and zoonotic pathogens (e.g. Campylobacter spp., listeria and salmonella). With an already established high-throughput method on a laboratory scale, this can be done with a hundred isolates simultaneously. Cell-free culture supernatants are obtained, which are subsequently used to identify the potential bacteriocins. Promising Bacillus isolates are tested in a second step in short-ripened and nitrite-reduced raw sausage products as a supplement to established starter cultures.

Funding: Drittmittelprojekt, gefördert durch die Fritz-Ahrberg-Stiftung., 17.500 EUR

Project Details:
Comparative tests are carried out with different sample materials. Fresh pork, chicken and beef are used, as well as meat products from the categories of raw and cooked sausage and ham (raw and cooked ham).
Three selected sample thicknesses are examined in each case, depending on commercially available cuts and products on offer, in order to be able to assess the influence of the material height on the subsequent analyses. The actual tests then include the measurement of color and texture.
With regard to the color measurement (instrumentally by means of chromameter), an interaction between sample material, sample thickness and background color is examined. The aim is to sensitize subsequent projects to possible influences and misinterpretations in connection with the methodological implementation.
When assessing the texture, various attachment tools are available for instrumental measurement using TA.XTplus, which are to be selected and compared depending on the respective material. The aim is to evaluate the necessity of the different preparation-intensive measurements and to identify comparable tools as well as to compare the measurement results of the different tools.

Funding: EU, 120.000 EUR

Project Details:
The project is carried out at DIL e.V., Quakenbrück.
The Horizon Europe project ZeroW directly addresses the challenge of food loss and waste by developing and testing an interplay of innovations under real-world conditions. 46 partners from across Europe have joined forces to develop realistic solutions to significantly reduce food waste and accelerate a just transition to a socially, economically and environmentally sustainable food system for all. The DIL is partner of the Living Lab "Mobile food valorisation as a service".

Cooperation Partners:

Inlecom Innovation Astiki Mi Kerdoskopiki Etaireia,

Wageningen University,

Nederlandse Organisatie Voor Toegepast Natuurwetenschappelijk Onderzoek Tno,

South East Technological University,

Biosense Institute - Research and Development Institute for Information Technologies in Biosystems,

Digiotouch Ou,

Eigen Vermogen Van Het Instituut

Voor Landbouw- En Visserijonderzoek,

Safe Food Advocacy Europe,

FBCD AS,

VLTN BV,

Instituto Tecnologico De Aragon,

Konnecta Systems Ltd.,

ITC - Inovacijsko Tehnoloski Grozd Murska Sobota,

Fondazione Istituto Sui Trasporti E La Logistica,

Instituto Tecnologico Del Embalaje,

Transporte Y Logistica,

Asociatia Transilvania It,

Asociatia Clusterul Agro-Food-Ind

Napoca,

Fundacion Corporacion Tecnologica De Andalucia,

Instituto Andaluz De Investigaciony Formacion Agraria Pesquera Alimentaria Y De La Produccion Ecologica,

Agrifood Lithuania Dih,

Sintef As,

Tilburg University,

Novamont Spa,

Mc Shared Services Sa,

Modelo Continente Hipermercados S.A.,

Grupo Empresarial La Cana,

Multiscan Technologies Sl, UAB Art21,

Lietuvos Darzoviu Augintoju Asociacija,

Lietuvos Maisto Eksportuotoju Asociacija (Litmea),

F6S Network Ireland Limited,

F6S Network Ltd.,

Allmicroalgae Natural Products Sa,

Universidade Do Minho,

Erevnitiko Panepistimiako Institouto Systimaton Epikoinonion Kai Ypologiston,

Boerenbond Projecten, Openbare Vlaamse Afvalstoffenmaatschappij,

ICLEI European Secretariat GmbH,

Kmetijsko Gozdarska Zbornica Slovenije Kmetijsko Gozdarski Zavod Murska Sobota, Univerza V Mariboru,

Robin Food,

Asociacion De Investigacion De Industrias Carnicas Del Principado De Asturias,

Aves Nobles Y Derivados,

S.L.,

Termoformas De Levante Sl, Eroski Scoop,

Voedselbank Limburg,

SVZ International Bv,

Konnecta Systems Ike,

Federation Belge Des Banques Alimentaires

Funding: DFG (VIPER GRK)

Project Details:
The exact pathomechanisms that lead to the development of long-term consequences after an acute SARS-CoV-2 infection - also known as long-COVID - are still largely unknown. Since only limited sample material from surviving patients with long-COVID is available, the use of a suitable animal model is essential to investigate the underlying mechanisms. In this project, the Syrian golden hamster was established as a model animal to study the pathogenesis of long-COVID. Initially, a short-term study was conducted to investigate the alveolar regeneration mechanisms, in which a morphological homology to the processes in the human lung after s SARS-CoV-2 infection was found. In a further long-term study over four months, morphological, molecular biological and lung function analyses were combined. The course of the disease in the animals showed three phases: acute, subacute and chronic. While the acute phase was characterized by severe breathing restrictions, these only occurred after exercise in the later phases and disappeared entirely after about 6 weeks. Histologically, there was persistent fibrosis and alveolar bronchiolization with club cell proliferation. Transcriptome analysis showed, among other things, an upregulation of pro-fibrotic genes. In the future, long-term consequences in the brain will be investigated primarily by transcriptome analysis, and the role of the pulmonary neuroendocrine system, which is connected to the central nervous system via afferent nerve fibers, will be examined in more detail.

Results:

Paper 1: https://www.nature.com/articles/s41467-023-39049-5 ; Nature Communications, 2023

 

Paper 2: https://www.researchsquare.com/article/rs-4681343/v1 ; (preprint Version), accepted at Nature Communications, 2025

Funding: DFG (VIPER GRK)

Project Details:
The aim of the project was to identify mechanisms of immune interference of canine distemper virus (CDV) in cells of innate immunity, in particular with regard to the antagonization of the innate antiviral immune response. For this purpose, different primary cell cultures were created from canine isolated immune cells and infected with different strains of CDV. The focus of the work was on alveolar macrophages, as these cells play a crucial role as primary target cells of the virus after aerogenic CDV infection and are furthermore essential for the maintenance of alveolar homeostasis. Differences in the response of immune cells to CDV infection were investigated using immunofluorescence staining, RT-qPCR, virus titration, RNA sequencing and assays to quantify cell death and viability.

Results:

https://pubmed.ncbi.nlm.nih.gov/39796262/

Cooperation Partners:

Helmholtz-Zentrum für Infektionsforschung, Genomanalytik (Robert Geffers)

Funding: EIP, EU, Landwirtschaftskammer Niedersachsen, 256.193 EUR

Project Details:
The project is carried out on DIL e.V., Quakenbrück.
This project aims to pilot a sustainable, resource-efficient technology for converting plant by-products near agricultural operations into valuable components, particularly protein-rich algae biomass, and to integrate it into daily routines. The project involves processing by-products from vegetable production through hydrolysis and utilizing the hydrolysate as a nutrient source for heterogeneous microalgae. The product of the process is a protein-rich algae biomass that the farmer involved can use as animal feed for pig fattening. In addition to piloting the process on-site and integrating it into daily operations, the project focuses on building new value chains and activating a circular economy in the farms, generating new sales channels and additional income. Current results include a ready-to-use prototype for microalgae production and its environmental impacts. The environmental impact of cultivating the microalgae biomass is currently under study, along with optimizing the process and necessary protocols.

Cooperation Partners:

Institut für Lebensmittel- und Umweltforschung e.V. (ILU);

Schroeder Winkelmann GbR