NOFIMA Repository
Not a member yet
2784 research outputs found
Sort by
An investigation on plant cell walls during biomass pyrolysis: A histochemical perspective on engineering applications
Get PDFpublishedVersio
Consumers’ values, attitudes and behaviours towards consuming seaweed food products: The effects of perceived naturalness, uniqueness, and behavioural control
Get PDFSeaweed has great potential as a natural, healthy, and sustainable food. Seaweed as food is novel in Western countries; thus, few studies have focused on the factors influencing consumers’ behavioural tendencies towards seaweed food products. This study aimed to fill the gap by investigating the antecedents for consumers’ attitudes towards as well as their consumption of seaweed food products in a representative sample of Norwegian consumers (N = 426). An extended version of the value-attitude-behaviour (VAB) theory was employed as a conceptual framework to study seaweed consumption, assessing hedonistic values and perceived uniqueness versus biospheric values and perceived naturalness. Structural equation modelling was used to test the hypothesis. Our results showed that attitude significantly affected the consumption of seaweed food products and that perceived behavioural control positively moderated the attitude–consumption relationship. Perceived naturalness and uniqueness were associated with attitudes towards seaweed. Biospheric values directly influenced attitude, while perceived uniqueness positively moderated the hedonistic values–attitude relationship. In conclusion, this study indicates that Norwegian consumers form their positive attitudes towards seaweed food products based biospheric values and their beliefs that these products are healthy and natural.Consumers’ values, attitudes and behaviours towards consuming seaweed food products: The effects of perceived naturalness, uniqueness, and behavioural controlpublishedVersio
Dietary Level of the Omega-3 Fatty Acids EPA and DHA Influence the Flesh Pigmentation in Atlantic Salmon
Get PDFpublishedVersio
Digital scoring of welfare traits in Atlantic salmon (Salmo salar L.) - a proof of concept study quantifying dorsal fin haemorrhaging via hyperspectral imaging
Get PDFpublishedVersio
Pilot-scale valorisation of salmon peptone into polyhydroxyalkanoates by mixed microbial cultures under conditions of high ammonia concentration
Get PDFpublishedVersio
High innovation intensity in fish farming: The role of openness in innovation and strategy
Get PDFThe salmon farming industry has since its infancy witnessed immense growth due to innovations increasing productivity. A significant part of the innovations causing the productivity growth has by many observers been attributed to collaborative and open R&D-efforts. Salmon farming in Norway is very research intensive, with a large share of R&D being publicly financed, and with results widely shared and innovations widely adopted. However, in recent years there has been a shift toward an increasing share of R&D becoming privately financed, leading to more closed innovation processes. This paper explores the importance of open innovation in salmon farming and the possible consequences of more closed innovation. The paper shows that openness of the innovations depends on the type of challenge and stakeholder. Innovation is at its most open when common challenges are addressed, like finding solutions for parasites and diseases. Innovation in salmon farming tends to become more closed as the industry consolidates, the larger the firm is and the closer to the market innovation takes place.publishedVersio
Sensory Properties and Chemical Composition of Fish Solubles Obtained from Upcycling of Fish Filleting Side Streams
Get PDFThe whitefish processing industry igenerates large amounts of food-grade side streams consisting of trimmings, head-backbone-skin (HBS), and viscera. Several factory fishing vessels have fishmeal plants to utilize the residues after onboard processing of the fish, however, at present, the protein-rich solubles is discarded. . In this study, fish solubles based on side streams from cod, saithe, haddock, and golden redfish were produced based on cooking, mechanical dewatering, centrifugation, and membrane filtration. All products had high flavor intensity, and only minor differences between fish species on sensory attributes were observed, suggesting a potential application as broth and flavor enhancer.Sensory Properties and Chemical Composition of Fish Solubles Obtained from Upcycling of Fish Filleting Side StreamspublishedVersio
In-Line Near-Infrared Spectroscopy Gives Rapid and Precise Assessment of Product Quality and Reveals Unknown Sources of Variation—A Case Study from Commercial Cheese Production
Get PDFAbstract: Quality testing in the food industry is usually performed by manual sampling and at/offline laboratory analysis, which is labor intensive, time consuming, and may suffer from sampling bias. For many quality attributes such as fat, water and protein, in-line near-infrared spectroscopy (NIRS) is a viable alternative to grab sampling. The aim of this paper is to document some of the benefits of in-line measurements at the industrial scale, including higher precision of batch estimates and improved process understanding. Specifically, we show how the decomposition of continuous measurements in the frequency domain, using power spectral density (PSD), may give a useful view of the process and serve as a diagnostic tool. The results are based on a case regarding the large-scale production of Gouda-type cheese, where in-line NIRS was implemented to replace traditional laboratory measurements. In conclusion, the PSD of in-line NIR predictions revealed unknown sources of variation in the process that could not have been discovered using grab sampling. PSD also gave the dairy more reliable data on key quality attributes, and laid the foundation for future improvements.publishedVersio
Policies to promote breeding for lice-resistant salmon – incentives designed for resilient and sustainable growth in aquaculture?
Get PDFSea lice represent a persistent and growing problem, challenging the resilience and growth of the salmon aquaculture industry. In this Norwegian case study, we studied and discuss how the absence of policy instruments directed at stimulating breeding for lice resistance (LR) might be explained. We found well-documented opportunities for selection progress for LR. Hence, breeding on LR appears with an untapped potential. We discuss how market-based, legal, institutional, and interest-based factors can explain this. Methodologically, we obtained data from document and literature studies and interviews with key players (salmon breeders, farmers, NGOs and governmental bodies in Norway). First, LR is a polygenic trait, that makes it poorly suited for patenting. Furthermore, if only a small proportion of fish farmers choose seeds with higher LR, other operators can easily take on the free-rider role, because they will not suffer from reduced gain in growth performance, as a result of a much stronger emphasis on LR in the breeding goal. The market is thus hardly expected to stimulate stronger selection for LR in Norwegian salmon breeding. Second, neither genetic engineering (e.g. gene editing), still struggling with consumer acceptance, nor the uncertainty associated with possible changes in the Norwegian Gene Technology Act stimulate investment in LR via e.g. CRISPR technology. Thirdly, public policy instruments in their entirety have targeted other types of innovations against salmon lice, and none have so far been used to stimulate breeding companies to emphasize LR more strongly in their breeding programs. From a political point of view, it seems that breeding has been left to the market and the private sector. However, neither the NGOs nor the public seem to be aware of, or pay significant attention to the breeding potential to improve LR and fish welfare. Fragmented management of the aquaculture sector can camouflage the close ties between political and business interests. The industry is hesitant to invest significantly in long-term breeding targets such as significantly higher genetic LR. This may strengthen the assumption that strong economic interests will reduce the role of science in knowledge-based management. As farmed salmon are increasingly being exposed to stressful delousing treatments, mortality and associated welfare problems have increased significantly. For instance, large fish die more often from CMS (cardiomyopathy syndrome). The result is growing demand for CMS-resistant salmon. This gives rise to a paradoxical situation: increasing treatments with high mortality and fish welfare issues in farmed salmon, while the lice threat to wild salmon persists.Policies to promote breeding for lice-resistant salmon – incentives designed for resilient and sustainable growth in aquaculture?publishedVersio