Publikasjoner
NIBIOs ansatte publiserer flere hundre vitenskapelige artikler og forskningsrapporter hvert år. Her finner du referanser og lenker til publikasjoner og andre forsknings- og formidlingsaktiviteter. Samlingen oppdateres løpende med både nytt og historisk materiale. For mer informasjon om NIBIOs publikasjoner, besøk NIBIOs bibliotek.
2009
Forfattere
Carl Jonas Jorge SpetzSammendrag
Det er ikke registrert sammendrag
Forfattere
Carl Jonas Jorge Spetz jihong liu clarke Merete Wiken DeesSammendrag
Det er ikke registrert sammendrag
Forfattere
Anders Often Bonsak HammeraasSammendrag
Det er ikke registrert sammendrag
Forfattere
Per Y. SteinsholtSammendrag
Det er ikke registrert sammendrag
Forfattere
Per Y. SteinsholtSammendrag
Det er ikke registrert sammendrag
Forfattere
Per Y. SteinsholtSammendrag
Det er ikke registrert sammendrag
Forfattere
Erling FløistadSammendrag
Da julestjernesorten Annette Hegg kom fra Thormod Hegg gartneri i Lier i 1967, var den en nyhet som åpnet veien for at julestjerne skulle komme til å bli den mest brukte juleblomsten, ikke bare i Norge, men i hele verden.
Sammendrag
Foredraget presenterer foreløpige resultater fra prosjektet "Kortreist mat med lokal identitet".
Sammendrag
Food quality labels linked to landscape, climate and geographical origin are favorable tools for rural development. Our project will link the benefits of farm animals grazing on mountain pasture to quality of local artisan food products. Then the French word "terroir" meaning the sense of place and defined as the impact of the soil, the climatic condition and the vegetation on the products could be used in marketing. Today"s consumers are looking for more than nutrition from their food; it should contribute to their health, they are looking for enjoyment, and they require a high ethical standard in the food production. Unsaturated fatty acids and antioxidants like carotenoids and polyphenols are considered important nutraceuticals according to many health benefits.These compounds are also used in traceability of animal feeding diet in the meat and milk products. Plant biomarkers are compounds that are not synthesized by animals, but occur in the food products due to the animals diet. Carotenoids and polyphenols are examples of such direct plant biomarkers, while fatty acids are metabolic markers deriving from animal metabolism and are called indirect markers. The objectives of the project are to document "terroir-effects" and high food quality that may give added values to the products and a better price in the market.The study is carried out in two representative summer-farming areas in Central Norway. Two summer-farms in Budalen (Forollhogna and Teijavollen) and one in Østerdalen (Gjermundshaug) participated in the study. Subalpine/alpine pastures are the main fodder source in the summer farming period, but all farmers use supplementary feeding consisting of concentrates in different quantities (3 kg - 7.5 kg per day). The analyzed local food was sour creams produced at the summer farms by the farmers. The reference product was an industrially produced (TINE) sour cream, based on different types of pastures, mostly high productive species, less species rich lowland pastures or silage and supplementary feeding by concentrates. In the last week before milk samples (for production of the test products) were taken in middle of August, herbs and grass samples from pastures belonging to the different summer farms were collected. The plants were frozen (dry ice) and transported together with samples of sour cream from each summer farm to the laboratory. Sour creams were analysed for composition and content of a range of fatty acids, carotenoids and content of total polyphenols. In addition a sensory preferencetest of the three summer-farm sour creams together with that from TINE was performed.Results showed that sour cream from mountain pastures in Teijavollen and Forollhogna has the same amount of a-linolenic acid (C18:3) in the pasture, 56.7 and 56.0 %, respectively. The sour cream from Forollhogna has significantly more of the healthy polyunsaturated fatty acid (C18:3) even if tless water content is taken into account. Probably these results could be explained by differences in metabolism in the two herds (low yielding Norwegian dairy breed versus the modern, moderate yielding dairy breed Norwegian Red (NRF), but also by differences in use of supplementary feeding of concentrates. Only small amounts of CLA are generally found in the pasture while sour cream from Forollhogna has nearly the double amount as the industrial produced sour cream from Tine. The amounts of polyphenols and carotenoids in sour cream and pastures from the mountains were also compared. The more polyphenols and carotenoids in the grazing areas the more were found in the sour creams. Two mountain sour creams and Tine factory sour cream were analysed in a sensory ranking test. No significant differences (P
Forfattere
Bolette Bele Hanne Sickel Tor Lunnan Ann Norderhaug Marianne Østerlie Roger K. Abrahamsen Liv Nilsen Mikael OhlsonSammendrag
The landscape and the old semi-natural habitats shaped by alpine farming represent important potentials both for local farmers and rural development. The projects referred focus on local food production with "added values", which represent picturesque landscapes, high biodiversity, and demanded food quality. Local food products such as sour cream, brown whey goat"s cheese, cow milk, mutton and beef are analyzed for specific sensory properties, fatty acid composition and the amount of antioxidants. Plant preferences among the livestock, botanical composition of pastures and management effects of grazing are also investigated. Preliminary results show higher levels of ω-3 fatty acids, CLA and antioxidants in milk and meat products with attractive sensory properties. These results are likely caused by distinctive properties of alpine pasture plants. Other Bioforsk projects show that production of high quality food products in addition may maintain high biodiversity and mountain summer farming landscapes, and that these "added values" make it possible to sell the food as labeled products, thus strengthening the farmer"s economy.