eKhSACIR інституційному репозитарії Харківської державної академії культури
Not a member yet
7410 research outputs found
Sort by
Immunome differences between porcine ileal and jejunal Peyer’s patches revealed by global transcriptome sequencing of gut-associated lymphoid tissues
No full textSession : PostersNational audienc
Bioeconomy systems sustainability assessment : embracing complexity
No full textThe European Union stes the objective of a sustainable bioeconomy as "to ensure an adequate supply of food and products of biological origin that are safe, healthy and of high quality by developing systainable and resource-efficient production systems, related ecosystem services, retoration of biological diversity, competitive and economical porcessing and marketing chains in carbon". Bioeconomy appears as a key policy to integrate the great societal issues of climate change, food security, fossil fuel dependence, scarcity of natural resources and territorial and industrial development on a number of scales, from small territory to national scale, as sustainable production and use of biomass are inherent to the bioeconomy proposition. One major challenge for bioeconomy is then to be able to assess how its development will successfully achieve these different objectives in concrete situations, from biomass production and uses natural resources conservation. Several authors highlight the lack of knowledge regarding the reality of bioeconomy systems that limits the development of sustainable bioeconomy projects in territories. Bioeconomy as a system is a relatively new concept tha encompasses several sectors and disciplines (e.g.:agriculture, forestry, industry). The scientific community and stakeholders are then still quite scattered focusing on only one component of the bioeconomy system, e.g.:transformation process forest-wood chains of biofuels production. Bioeconomy systems are also characterized by a high flexibility to resources, processes, stakeholders or transformation chains. Understanding the whole bioeconomy system and proposing sustainable organization to optimize biomass productions and uses requires accounting for the high level of complexity inherent to bioeconomy systems. There is a need for a specific framework that deciphers bioeconomy systems in order to help their integrated assessment. Starting with territorial bioeconomy systems, we propose a description to help the concrete systainability assessment and highlight the potential locks and levers for bioeconomy development
Le travail en élevage et ses mutations
No full textLe travail en élevage et ses mutations. Rencontres Recherches Ruminant
Sequence-based association study of resistance to paratuberculosis in Holstein and Normande cattle
No full textInternational audienc
Prise en compte des gènes d’intérêt dans les objectifs de sélection en bovins laitiers
No full textNational audienc
Effect on lipid oxidation and microbial growth of bulk and interfacial composition in rich omega-3 oil-in-water emulsions
No full textThe fatty acids’ profile of industrial food products has been modified over the last decades in order to respect nutritional recommendations. In particular, the proportion of omega-3 is higher, leading to a potential increase of lipid oxidation and growth of some pathogenic microorganisms. The addition of molecules having both antioxidant and antimicrobial properties can be a solution to limit this instability. Phenolic compounds, naturally present in ingredients of plant origin, provide this opportunity and can be exploited in food products such as oil-in-water (o/w) emulsions rich in omega-3. Many studies already deal with the oxidation of such systems and their protection by antioxidants . Nevertheless, in order to control these phenomena and offer safe and healthy products, further works need to focus on the understanding of the associated chemical mechanisms occurring when many compounds are in interaction . Our study aims to better understand the impact of composition and structure parameters of o/w emulsions rich in essential long chain polyunsaturated fatty acids from omega-3 family, by quantifying the oxidation of several realistic models. The chosen systems are composed of a fish oil phase, containing 25 % w/w of docosahexaenoic acid (DHA), and an aqueous phase supplemented with polysaccharides (guar gum, 0 to 0.6 %, w/w) to reach a range of viscosities related to food products and with whey proteins as surfactant molecules widely used in food industry or tween 80 as a reference surfactant. A part of them is also enriched in phenolic antioxidants alone or in mixture (α-tocopherol, eugenol, ferulic acid). The behavior of these complex systems is analyzed from several physico-chemical markers and phenomena influencing lipid oxidation (viscosity, interface, phenolic compounds alone or in synergy) are pointed out. Finally, in emulsions enabling the growth of a food pathogen (Listeria monocytogenes), the dual antioxidant and antimicrobial activity of phenolic compounds is challenged
A novel CO18O dataset and modelling framework to constrain estimates of photosynthesis at the global scale
No full textInternational audiencePhotosynthesis (GPP), the largest CO 2 flux from the land surface, is currently estimated with considerable un- certainty. More robust estimates of global GPP could be obtained from the atmospheric budgets of other tracers such as, the oxygen isotopic composition ( δ 18 O) of atmospheric CO 2 or carbonyl sulphide (COS). However, es- timating GPP using these tracers hinges on a better understanding of how soil microbes modify the atmospheric concentrations of CO 18 O and COS at large scales. In particular, understanding better the role and activity of the enzyme Carbonic Anhydrase (CA) in soil microbes is a critical factor underpinning the successful implementation of these tracers in global scale models. We addressed this knowledge gap by measuring the exchange of CO 18 O between soil microcosms and the atmosphere from sites covering a range of biomes. This novel dataset has led to the development of a new mechanistic framework that can be easily implemented in multi-tracer Earth system models to predict variations in soil CA activity across the terrestrial land surface. Using this multi-tracer approach we provide independent estimates of global GPP constrained by the atmospheric budgets of CO 2 and CO 18 O
Rumen methanogens exhibit specific energetic and growth dynamics: a modelling approach
No full textSession 2: Microbial ecosystem and herbivore nutritionNational audienc
