Publications
NIBIOs employees contribute to several hundred scientific articles and research reports every year. You can browse or search in our collection which contains references and links to these publications as well as other research and dissemination activities. The collection is continously updated with new and historical material.
2014
Authors
Sebastian Mazur Arnfinn Nes Anne-Berit Wold Siv Fagertun Remberg Berit Karoline Martinsen Kjersti AabyAbstract
Effects of ripeness (nearly ripe, ripe, fully ripe) and cultivar (‘Blink’, ‘Polka’ and ‘Senga Sengana’) on colour and chemical composition of strawberry fruits and their suitability for jam production, evaluated as stability during storage at 4 and 20 °C for 3 and 6 months, were investigated. Quality traits of fruits and jams were significantly affected by both ripeness stage and cultivar. However, after 6 months of storage, particularly at 20 °C, the effects of fruit ripeness and cultivar were considerably reduced. During jam storage, anthocyanins, ascorbic acid, chroma and hue were least stable in jams made from the least ripe fruits. Quality traits in jams made from ‘Senga Sengana’ were best preserved during storage, while quality and chemical composition in jams made from ‘Blink’ changed the most. In conclusion, fully ripe fruits were best suited for jam processing. Storage at low temperature was preferable and ‘Senga Sengana’ was the most and ‘Blink’ the least suitable cultivar for processing.
Authors
Ger Devlin Bruce TalbotAbstract
The Irish government has undertaken to reduce national CO2 emissions through a range of measures put out in their Biomass Action Plan and the National Renewable Energy Action Plan. The conversion of peat fired power plants to co-fire with renewable biomass is one of these. This paper considers how the adoption of sweeping policies impact on other actors presently supplying or utilizing woody biomass resources. The SAWMILL sector (18 sawmills), BOARD sector, 3 board plants, and ENERGY sector (3 peat fired power stations) were included in a Linear Programming (LP) based transportation study. Specific transport costs between each residue producing sawmill and each board and energy plant were modeled and used in finding the minimum delivered cost for a number of scenarios. Scenario 2015 represented the status quo, while Scenario 2030 represented a situation with 30% co-firing with woody biomass equivalents in the energy plants. For each time horizon, the problem was solved from the perspective of society at large (GLOBAL), for the benefit of the board sector (BOARD) or with emphasis on minimizing the cost to the energy sector (ENERGY). The cost of transporting alternative sources of renewable energy was varied between €100 and €500 TJ−1. Results showed how overall supply costs increase with increasing alternative energy cost, but also how the dynamics between sectors focus worked. The cost of transport to the Energy sector ranged from €306,043 to €996,842 in Scenario 2015, while the increased demand in 2030 led to a range of between €1,132,831 and €4,926,040, depending on the alternative cost selected. For the Board sector, whose absolute demand remained constant, the total transport cost ranged between €868,506 and €3,454,916 in Scenario 2015. The unchanged demand showed that the transport costs also remained the same for the 2030 Scenario, however, the optimization focusing on the Energy sector, increased the delivery cost to the Board sector by up to €693,730 per year by 2015 and €842,271 per year by 2030, indicating how intervention would be necessary if political ambitions of a 30% co-firing should happen without detriment to other important wood based industries.
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No abstract has been registered
Authors
Ingrid Ertshus Mathisen Anna Mikheeva Olga V. Tutubalina Sigrun Aune Annika HofgaardAbstract
No abstract has been registered
Authors
Hege Johansen Marit Solum Geir Kjølberg Knudsen Eline Benestad Hågvar Hans Ragnar Norli Anders AakAbstract
No abstract has been registered
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No abstract has been registered
Authors
Teresa Gómez de la Bárcena Lars Pødenphant Kiær Lars Vesterdal Helena M Stefánsdóttir Per Gundersen Bjarni D. SigurdssonAbstract
No abstract has been registered
Authors
Bjørn Kløve Pertti Ala-Aho Guillaume Bertrand Jason J. Gurdak Hans Kupfersberger Jens Kværner Timo Muotka Heikki Mykrä Elena Preda Pekka Rossi Cintia Bertacchi Uvo Elzie Velasco Manuel Pulido-VelazquezAbstract
No abstract has been registered
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No abstract has been registered