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.
2012
Forfattere
Celine Rebours Marte MelandSammendrag
The Netalgae project was established to support the European seaweed industry through the creation of an industry network to encourage co-operation amongst the seaweed industries and stakeholders across the project area. The project had a secondary aim, specifically to create best practise guidelines for the regulation administration and management of seaweed resources and related activities across the project area. This document provides an overview of the Norwegian seaweed industry, its history, evolution and current status, the document outlines the scale, scope, value and the key raw materials used by the industry. The document also describes the regulatory and management systems in Norway. The Norwegian seaweed industry is almost completely reliant on natural beds of Ascophyllum nodosum and Laminaria hyperborea. L. hyperborea accounts for about 90% of the national harvest. Mecanical harvesting provides almost all of Norways national seaweed output. Manual harvesting of other species such as Ulva spp is carried out at very low levels, mainly for the provision of high quality raw material to restaurant or grocery stores. Seaweed aquaculture is under development but generates very little biomass. The Alginate Industry is by far the most important sector, consuming the vast majority of the seaweed processed in Norway (domestic and imports). The rest is used directly as food, fodder, biostimulants, cosmetics, aquaculture and in health sectors. In Norway, regulations for harvesting seaweed apply to seabed algae such as Laminaria hyperborea. Harvest of foreshore algae such as Ascophyllum nodosum is not regulated, but is regulated by private owner rights because the species grow in the tidal zone. Environmental protection laws and other regulations can restrict areas for harvesting. Regulations of aquaculture of seaweed are under development.
Forfattere
Ellen Johanne SvalheimSammendrag
Det er ikke registrert sammendrag
Forfattere
Christian Brückner Kerstin Mammitzsch Günther Jost Juliane Wendt Matthias Labrenz Klaus JürgensSammendrag
Det er ikke registrert sammendrag
Forfattere
Siv Lene Gangenes SkarSammendrag
Det er ikke registrert sammendrag
Forfattere
May-Guri Saethre Nina Oseth Svendsen Børge Holen Amos Awaraka Cossi Ignace GodonouSammendrag
A total of 25 samples of tomatoes (7), hot pepper (6), leaves of African eggplant (gboma) (6), onions (3)and white cabbage (2) were collected in November 2011 from farmers" field at eight locations in the departments of Mono and Coufto in Benin. The samples were comminuted in Benin and sent frozen to Norway for analyses of possible pesticide residues. Two multi-methods covering 300 pesticides including some metabolites were used for the analysis. Residues were detected in four samples, resulting in 12 findings; of insecticides, one combined insecticide/nematicide and/or metabolites. African eggplant (Gboma) leaves contained the highest number of residues (10 pesticides) and also the highest concentrations of pesticides. One sample of Gboma leaves from Grand-Popo, had a very high content of dimethoate and omethoate (sum 19 mg/kg) as well as other residues violating both the Codex Alimentarius" and the EU"s maximum residues limits (MRLs). Consumption of these leaves may represent a health risk as both the acceptable daily intake (ADI) and acute reference dose (ARfD) were far exceeded. Another sample of gboma leaves, also from Grand-Popo, contained 11 mg/kg of profenofos. Consumption of less than 200 grams of these leaves may also represent a health risk as the ADI are exceeded. One sample of cabbages contained low concentrations of two pesticides. No residues were found in the samples of tomatoes, hot peppers and onions.
Forfattere
Mozetic Vodopivec alena gibalova Eivind VangdalSammendrag
During the picking season in the Norwegian plum production areas, the harvested plums are brought to cold storage in packing houses once or twice a day. Plums picked late in the afternoon may even not be cooled properly until the next day. The average time from picking until the plums are placed in a cold storage is approximately 8 hours. Previous reports have shown that delayed cooling of sweet cherries and apples reduced the fruits’ susceptibility to physiological or fungal decay. An experiment was performed in order to evaluate the impact of different delay-to-cold storage times (0, 5, 10, 15 and 25 hours) on quality and phenolic contents changes of Norwegian ‘Mallard’ plums during cold storage, transport, and retail in normal atmosphere (NA). The fruits (10 fruits in PE tray, n=3) were stored for 14 days at 1°C, followed by 3 days at 7°C and then for 4 days at 20°C. Fruit quality parameters (firmness, colour in CIE L, a*, b* colour space, weight, rot occurrence (%)) and total phenol and anthocyanin content were determined. Samples were analyzed just before cold storage and then after 14 days at 1°C, 3 days at 7°C, or 4 days at 20°C. Evaluation of results has shown that delay of cooling has a retarding effect on rot development during 20°C storage (post cold transport), weight loss and stimulates anthocyanin accumulation and colour changes to some extent. At the end of storage no effect on fruit firmness could be observed.
Forfattere
alena gibalova Eivind Vangdal A. LeufvénSammendrag
The flavor of apples after storage is important to the consumers. Most often factors like decay, firmness and the contents of soluble solids and acidity are regarded as the limiting factors for storability of apples. The amount of volatile aroma compounds is less studied. Using head space analyses the amounts of 8 compounds known to be important to aroma of apples were studied during storage. Some compounds increased while others decreased during storage. Apples of three cultivars and from trees treated with foliar fertilization with nitrogen and calcium were included. The early ripening cultivar ‘Discovery’ had more aroma compounds in November and less in February. In the late ripening cultivar ‘Elstar’ the content of aroma compounds was low in November. However, the amounts were more than doubled in February. The foliar fertilization with nitrogen tended to reduce the amount of aroma compounds while the highest content was found in apples from trees treated with calcium. However, these tendencies were not statistically significant. In ‘Discovery’ the content of aroma compounds may be a limiting factor to the storability of this cultivar.
Forfattere
jihong liu clarkeSammendrag
Det er ikke registrert sammendrag
Forfattere
Juliana Irina Spies PerminowSammendrag
Det er ikke registrert sammendrag
Forfattere
Ellen Johanne Svalheim Harald Bratli Anders OftenSammendrag
Det er ikke registrert sammendrag