NOFIMA Repository
Not a member yet
2784 research outputs found
Sort by
Hurtigmetoder for påvisning av listeria (Faktaark)
No full textFor å forebygge listeria i mat er det viktig med raskere metoder for påvisning. Nofima har kartlagt hvilke metoder for påvisning av Listeria monocytogenes som finnes på markedet og vurdert mulighetene for å utvikle en raskere teknologi.For å forebygge listeria i mat er det viktig med raskere metoder for påvisning. Nofima har kartlagt hvilke metoder for påvisning av Listeria monocytogenes som finnes på markedet og vurdert mulighetene for å utvikle en raskere teknologi
Older adults' acceptability of and preferences for food-based protein fortification in the UK, France and Norway
Get PDFResearch suggests that as we age, protein intake, recognised as vital for combating negative health outcomes, consistently falls below recommendations in older adults. Decreased food intake, combined with age-related eating complications is a major determinant of this protein undernutrition. If nutritional interventions are to be effective and sustainable, they must enable eating pleasure, cater for personal preferences and be adaptable to different eating patterns. As such, we aimed to identify successful strategies for at-home protein-fortification to empower older adults to take a personalised approach to their nutrition, without requiring a large behavioural change. To explore healthy older adults’ (age 70+) acceptability and preferences for at-home protein fortification, European project Fortiphy led discussions with older adults (n = 37) and caregivers of older adults (n = 15) to develop high-protein recipes, which were then utilised in a home-use trial with healthy older adults (n = 158). Each fortified recipe was paired with a questionnaire to rate the ease of preparation and liking, and an end-of-study questionnaire was provided to capture overall opinions and preferences. The uniqueness of this study is that the protein fortified recipes were prepared and tested by older adults themselves, in their own homes. Findings showed that older adults were unaware of the importance of protein in ageing and did not have a desire to fortify their foods at present. Yet, they were positive regarding the concept and highlighted the importance of taste, familiar ingredients, and preferred preparation methods. Cultural preferences across countries were identified as having the most influence on the liking of fortified meals. This study also indicated a need for increased awareness of protein requirements to influence the motivation to use fortification.publishedVersio
Morphology, processing attributes, fatty acid, and amino acid composition in cooked leg meat and raw hepatopancreas of juvenile male red king crab (Paralithodes camtschaticus) after 12 months of live holding
Get PDFThis study investigated how diet composition (DC) (i.e., raw shrimp or dry feed alone and combinations thereof) affected the morphology, processing attributes, fatty acid (FA)- and amino acid (AA) composition in cooked leg meat and raw hepatopancreas of juvenile red king crabs (RKCs). After 12 months, the crab weight nearly doubled, and the average mortality was 10%. The DC influenced the attributes of the cooked leg meat and the raw hepatopancreas. In addition, crumbling the dry feed led to reduced nutritive conditions, especially in the 80 and 100% dry feeding groups. In the leg meat, the main FA components were PUFA, MUFA, and SFA in descending order, while for the raw hepatopancreas, the corresponding order was MUFA, PUFA, and SFA. Minor AA variations across the groups were observed in the cooked leg meat and raw hepatopancreas. A PCA revealed a grouping of selected morphological-, processing attributes, and FAs according to the 20 and 100% dry feed groups. This study did not explore the specific feed intake. Hence, whether the results reflect the DC, a lower feed intake due to the crumbling, or a combination is unknown. Overall, the results show positive prospects for live holding of juvenile RKCs.publishedVersio
Embracing prospects for reducing the numbers of animals used in aquaculture research
Get PDFThe principles of three Rs-REPLACEMENT, REDUCTION, and REFINEMENT-govern the protection and use of animals, including fish, for research purposes in the European Union and Norway. In this paper, we discuss some straightforward steps to simplify the delivery of these principles at the idea stage and adapt some of these examples for conducting fish trials related to health and welfare. Although some of the approaches are well established in other animal science arenas, we believe there can be a timely recap of their key facets. We discuss a number of simple strategies to emphasize how a reduction in fish numbers can be achieved from initial project conception to implementation, highlighting not only their advantages but also their limitations. We also highlight the role that funding agencies can play in the implementation of the 3R principles in aquaculture research. These simple points can be used in frameworks to initiate a broader and dynamic intersectoral dialogue among stakeholders of aquaculture research on how to promote ethics and embrace opportunities for this within the tenets of the 3Rs.publishedVersio
Context matters when using climate model projections for aquaculture
Get PDFAt present, specific guidance on how to choose, assess and interpret climate model projections for the aquaculture sector is scarce. Since many aspects of aquaculture production are influenced by the local farm-level environment, there is a need to consider how climate model projections can be used to predict potential future farming conditions locally. This study compared in-situ measurements of temperature and salinity from Norwegian salmon farms and fixed monitoring stations to simulations from a regional ocean climate model for multiple locations and depths in southern Norway. For locations considered in this study, a similar seasonal cycle in terms of phasing was visible for modelled and measured temperatures. For some depths and times of the year the modelled and measured temperatures were similar, but for others there were differences. The model tended to underestimate temperature. On occasion there were differences between average modelled and measured temperatures of several degrees and aquaculture users would need to consider the implications of using the modelled temperatures. As for salinity, the model does not include localized freshwater inputs, so the model overestimated salinity for locations close to shore and was not able to represent more brackish water conditions in shallower depths. It was not possible to draw a general conclusion as to whether the model was suitable for aquaculture purposes, as the similarities and differences between the modelled and measured values varied by variable, area, depth, and time. These findings made it clear that aquaculture users would have to implement a process to determine whether they could use climate model outputs for their specific purpose. A model vetting framework is presented that can be used to support decisions on the use of climate model projections for aquaculture purposes. The vetting framework describes four stages that can be used to establish the necessary context regarding the aquaculture requirements and model capabilities, and then check how the model is simulating the conditions of interest at farm sites. Although the focus was aquaculture, the findings are relevant for other sectors and the framework can guide use of climate models for more local-scale assessment and management in coastal locations.publishedVersio
Identification of traits underpinning good breadmaking performance of wheat grown with reduced nitrogen fertilisation
Get PDFBackground: Nitrogen fertiliser is the major input and cost for wheat production, being required to support the development of the canopy to maximise yield and for the synthesis of the gluten proteins that are necessary for breadmaking. Consequently, current high-yielding cultivars require the use of nitrogen fertilisation levels above the yield optimum to achieve the grain protein content needed for breadmaking. This study aimed to reduce this requirement by identifying traits that allow the use of lower levels of nitrogen fertiliser to produce wheat for breadmaking. Results: A range of commercial wheat genotypes (cultivars) were grown in multiple field trials (six sites over 3 years) in the UK with optimal (200 kg Ha-1) and suboptimal (150 kg Ha-1) application of nitrogen. Bulked grain samples from four sites per year were milled and white flours were baked using three types of breadmaking process. This identified five cultivars that consistently exhibited good breadmaking quality when grown with the lower nitrogen application. Chemical and biochemical analyses showed that the five cultivars were characterised by exhibiting grain protein deviation (GPD) and high dough elasticity. Conclusions: It is possible to develop novel types of wheat that exhibit good breadmaking quality by selecting for GPD and high dough strength.publishedVersio
Seafood production in Northern Norway: Analyzing variation and co-development in aquaculture and coastal fisheries
Get PDFpublishedVersio
