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.
2013
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Authors
Pierre Ackerman Bruce Talbot Bo DahlinAbstract
This chapter provides an introduction into the harvesting and supply of biomass from timber plantations. It considers the main sources of utilizable biomass and their properties and discusses harvesting equipment, machinery and systems that could potentially be applied for moving these resources to a landing and eventually the conversion plant. Important supply processes such as storage and drying, quality assurance, transport and simple trade models are also presented. Management of feedstock supply is discussed and illustrated with two examples integrating concepts included in this chapter. This chapter will provide the reader with an overview of the techno-economic factors to be considered for biomass procurement, how these interact with each other, and how they can be applied in developing supply models to provide strategic insight into the harvesting and transport of woody biomass.
Authors
Panu Oulasvirta Paul Eric Aspholm Marko Kangas Bjørn Mejdell Larsen Pirko-Lisa Luhta P. Olofsson J. TaskinenAbstract
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Authors
Rajko Vidrih Branka Mozetic Vodopivec Janez Hribar Anja Mahne Opatic Eivind VangdalAbstract
Plums varieties Jubileum, Excalibur and Reeves were harvested at commercial harvest date. After harvest fruits were dipped in hot water (56 °C) for 2 minutes then they were cooled down in cool water. Fruits were stored for 4 weeks in normal atmosphere (NA) and modified atmosphere (MAP) in xtend packaging film. In equilibrium state,modified atmosphere consisted of 10 % of O2 and 10 % of CO2. Excalibur contained the highest amount of total phenols, followed by Jubileum and Revees, while Jubileum had the highest antioxidative potential (AOP) followed by Excalibur and Revees. Significantly more total phenols was found at second week of storage followed by forth week and after harvest. On the other hand, Revees contained significantly more flavonoids, followed by Excalibur and Jubileum. The highest antioxidative potential was found immediately after harvest followed by that of 4 weeks storage and finally that of 2 weeks storage time. Significantly more flavonoids were found at the beginning of storage and least at the end of storage. Plums stored in modified atmosphere had the highest AOP, followed by NA, MAP hot water (HW) treated and NA hot water treated fruits. With regard to storage conditions, more flavonoids were found in NA stored plums, followed by MAP HW, MAP and NAHW. Revees had the highest polar AOP followed by Jubileum and Excalibur, but no statistically significant differences were found. Also the highest polar AOP was found in forth week of storage again no statistically significant differences were found. Storage atmosphere gave no statistically significant differences in polar AOP. Results showed that storage conditions influence the AOP, total phenols and flavonoids. Flavonoids are more abundant after harvest, total phenols in the middle of storage period. Hot water treatment is becoming popular because might be used for organically grown fruits and vegetables. In our experiment hot water treatment showed e tendency to decrease AOP, flavonoids and polar AOP but significantly decreases total phenols.
Authors
Rajko Vidrih Alena Gibalova M Korosec E Zlatic Janez Hribar Eivind VangdalAbstract
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