Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Survey data on Dutch farmers’ perceived resilience, risk management, risk preferences, and risk perceptions
Slijper, H.T. ; Mey, Y. de; Poortvliet, P.M. ; Gielen-Meuwissen, M.P.M. - \ 2021
farmers - resilience - robustness - adaptability - transformability - risk management - risk preferences - risk perceptions - risk behaviour
This dataset contains data on Dutch farmers’ perceived resilience, risk management, risk preferences, and risk perceptions. It contains cleaned survey data from 926 Dutch farmers.
First evidence of a new spawning stock of Illex coindetii in the North Sea (NE-Atlantic)
Oesterwind, Daniel ; Bobowski, Bianca T.C. ; Brunsch, Anika ; Laptikhovsky, Vladimir ; Hal, Ralf Van; Sell, Anne F. ; Pierce, Graham J. - \ 2020
Fisheries Research 221 (2020). - ISSN 0165-7836
North Sea - ommastrephidae - illex - reproduction - distribution - Life cycle
Global changes drive abundance and distribution of species worldwide. It seems that at least some cephalopodstocks profit from global changes as indicated by increases in biomass and/or expansion of their geographicaldistribution, as appears to be the case for the commercially important ommastrephid squidIllexcoindetii, in theNorth Sea. Based on the recently increased abundance of this species seen in research trawl hauls, here wepresent the first evidence of a summer spawning stock ofIllexcoindetiiin the North Sea and derive a descriptionof its life cycle. Neither mated females nor spent males were reported from the area previously. In quarter 1 themajority ofIllexcoindetiiwere immature (maturity stage 0) and maturing (maturity stage 1–3) while in quarter 3almost exclusively mature and spent individuals (maturity stage 4–6) were caught. We observed up to threespermatangia bundles attached to females in quarter 3, indicating that spawning and reproduction takes place inthe North Sea and that the species is already established in this area. Estimated egg hatching dates suggest aprolonged hatching period and therefore likely a long spawning season, although cold temperature seems tolimit year round reproduction. The intensity of individual migrations from adjacent waters into the North Sea isunknown and therefore the number of individuals staying permanently in the North Sea could not be estimated.It is consequently still unclear whether the North Sea individuals ofI. coindetiiconstitute a new separate stock
Assessment of air gap membrane distillation for milk concentration
Moejes, S.N. ; Wonderen, G.J. van; Bitter, J.H. ; Boxtel, A.J.B. van - \ 2020
Journal of Membrane Science 594 (2020). - ISSN 0376-7388
Membrane distillation - Milk - Network optimization - Process design - Reverse osmosis

Multi-effect evaporation is the state of the art for concentration of liquid food products to high solid content. Membrane technology with reverse-osmosis and membrane distillation offer an alternative. For the concentration of milk, a reverse osmosis and air-gap membrane distillation network was modelled and optimized. Fouling dynamics and scheduling are taken into account. Reverse osmosis is favourable until its maximum achievable concentration. Air gap membrane distillation is, despite the low operational temperatures, energy intensive for the concentration of milk. A large recirculation flow to keep sufficient cross flow has to be heated and cooled, and the costs for heating and cooling dominate the total costs for product concentration. Moreover, fouling increases the energy requirements. The optimal system for air gap membrane distillation has only one stage operating at a high concentration and relative low flux. Applying multiple stages reduces the investment costs due to smaller units, but the heating and cooling costs increase. Major opportunities to improve the performance of air gap membrane distillation for concentration of milk are: 1) increase the cold and hot side temperatures to their maximum acceptable values, 2) develop spacers that allow lower linear flow velocities in the system and thus lower recirculation rates, and 3) make use of available waste heat.

Far-red light during cultivation induces postharvest cold tolerance in tomato fruit
Affandi, Fahrizal Y. ; Verdonk, Julian C. ; Ouzounis, Theoharis ; Ji, Yongran ; Woltering, Ernst J. ; Schouten, Rob E. - \ 2020
Postharvest Biology and Technology 159 (2020). - ISSN 0925-5214
We investigated the role of far-red LED light during cultivation on postharvest cold tolerance in tomato fruit (Solanum lycopersicum cv Moneymaker). Red and blue top LED light, providing 150 μmol m−2 s-1 photo-synthetically active radiation (PAR) at plant height for 16 h daily, was combined with 0, 30 or 50 μmol m−2 s-1 (non-PAR) far-red LED light. Tomatoes were harvested at the mature green or red stage and subjected to cold storage for 0, 5, 10, and 15 d at 4 °C, followed by 20 d shelf-life at 20 °C.
Mature green harvested tomatoes, cultivated with additional far-red light, showed reduced weight loss, less pitting, faster red colour development during shelf-life (when prior long cold stored), and less softening (when prior short or non-cold stored). FR lighting during cultivation likely protects the membrane integrity of MG tomatoes and thus allows uninterrupted lycopene synthesis. Red harvested tomatoes cultivated with additional far-red light were firmer at harvest, showed reduced weight loss and less decay during shelf-life. Less red colouration was observed for red harvested fruits at the start of shelf-life when fruits were prior cold stored, indicative of lycopene breakdown during cold storage. The improved cold tolerance of red harvested fruits grown under additional far-red light is likely due to higher firmness at the start of the shelf-life period with lycopene acting as antioxidant during cold storage. In conclusion, additional far-red light during cultivation improved postharvest cold tolerance for tomatoes harvested at both the green and red maturity stage, and might therefore be suitable to prolong the storage potential of tomato at sub-optimal temperatures.
Nutrition, health and microbial ecology of traditional fermented foods in Zambia
Chileshe, Justin - \ 2019
Wageningen University. Promotor(en): B.J. Zwaan, co-promotor(en): S.E. Schoustra; E.F. Talsma. - Wageningen : Wageningen University - ISBN 9789463951104 - 141
Report on Narratives behind Directives Protecting the Environment
Olde, E.M. de; Kok, A. ; Ripoll Bosch, R. ; Boer, I.J.M. de; Giampietro, M. ; Pereira, A. - \ 2019
- 45 p.
This deliverable presents a social metabolism analysis and quality check of a narrative related to the policy domain of environmental protection. More specifically, the deliverable applies and reflects on the use of Quantitative Story Telling as an innovative approach to explore the feasibility, viability and desirability of a narrative. In this deliverable we analysed options for internalization of agricultural production and its impact on biodiversity. Four case studies (the Netherlands, France, Spain and the EU28) were used to reflect differences between countries and overall import characteristics, land use and livestock production. The FAOSTAT database of production and trade in livestock and crop products was used to identify and quantify the main import and export crop and livestock products in the four case studies. This gives an impression of the magnitude of the trade, its associated land use, the role of livestock production, the (im)possibilities of internalizing these imports, and the impact internalization could have on biodiversity. Although the four case studies are explorative, they show that the current import of crop products requires a substantial amount of land in other parts of the world and illustrate the complexity involved in internalization. Based on the results, we conclude that internalization of agricultural production based on current levels of import and export, would jeopardize commitments made to reduce biodiversity loss.
Zonder strijd geen overwinning : Een geïntegreerde aanpak om Phytophthora uit te schakelen
Govers, F. - \ 2019
Gewasbescherming 50 (2019)5. - ISSN 0166-6495 - p. 191 - 198.
Veertig jaar onderzoek aan de bladvlekkenziekte van tomaat
Wit, P.J.G.M. de - \ 2019
Gewasbescherming 50 (2019)5. - ISSN 0166-6495 - p. 173 - 182.
Factsheet 'stikstofbronnen'
Oenema, O. ; Vries, W. de; Dobben, H.F. van; Kros, J. ; Velthof, G.L. ; Reinds, G.J. - \ 2019
Wageningen : Wageningen Environmental Research - 17 p.
Groene chemicaliën
Haveren, J. van - \ 2019
biobased economy - paints - coatings - solvents - biomass
Tot de laatste vezel
Trindade, L.M. - \ 2019
biobased economy - biomass - agricultural wastes
The influence of multi-stakeholder platforms on farmer innovation and rural development in emerging economies : Examples from Uganda
Barzola Iza, Carlos L. - \ 2019
Wageningen University. Promotor(en): S.W.F. Omta, co-promotor(en): D. Dentoni. - Wageningen : Wageningen University - ISBN 9789463951470 - 226
Molecular characterization of nucleus-associated virulence targets of effector GpRbp-1 from Globodera pallida
Diaz Granados Muñoz, Amalia - \ 2019
Wageningen University. Promotor(en): G. Smant, co-promotor(en): A. Goverse. - Wageningen : Wageningen University - ISBN 9789463950602 - 191
Earth System Governance : Science and Implementation Plan of the Earth System Governance Project 2018
Burch, Sarah ; Gupta, A. ; Yumie Aoki Inoue, Christina ; Kalfagianni, Agni ; Persson, Asa ; Heijden, Jeroen van der; Vervoort, Joost ; Adler, Carolina ; Bloomfield, Michael John ; Djalante, Riyanti ; Dryzek, John S. ; Galaz, Victor ; Gordon, Christopher ; Harmon, Renee ; Jinnah, Sikina ; Kim, Rakhyun E. ; Olsson, Lennart ; Leeuwen, J. van; Ramasar, Vasna ; Wapner, Paul ; Zondervan, Ruben - \ 2019
Utrecht : Earth System Governance - 128 p.
Syntheserapport Voedselverspilling bij huishoudens in Nederland in 2019
Ooijendijk, T. ; Janmaat, O. ; Soethoudt, J.M. ; Snoek, J. ; Palland, K. ; Dooren, C. van; Schrijnen, M. ; Huigens, M. - \ 2019
Den Haag : Stichting Voedingscentrum Nederland
food wastage - consumers - consumer behaviour - food wastes
Natuurinclusieve landbouw
Gies, T.J.A. - \ 2019
Wageningen : Wageningen University & Research
Deze website presenteert toekomstbeelden voor natuurinclusieve landbouw. Ze schetsen niet hoe de toekomst er uit moet zien, maar hoe deze eruit kan zien. Bedoeld als discussiemateriaal om samen met betrokkenen in regio’s, in gebiedsprocessen een natuurinclusieve toekomst te verkennen. Om keuzes en dilemma’s zichtbaar en bespreekbaar te maken.
Why we buy what others buy : The role of product popularity in consumer decision making
Goedegebure, Robert P.G. - \ 2019
Wageningen University. Promotor(en): J.C.M. van Trijp, co-promotor(en): H.W.I. van Herpen. - Wageningen : Wageningen University - ISBN 9789463950978 - 179
Sectorplan versnelling verduurzaming kalverhouderij
Peet, G.F.V. van der - \ 2019
- 26 p.
animal welfare - animal production - cattle - calves - animal health - animal housing - animal behaviour - sustainability
Uitvoeringsagenda Pluimveesector : Ambities en acties voor de periode tot en met 2025 en streefbeelden voor de langere termijn (2030)
Leenstra, F.R. - \ 2019
- 59 p.
70th Annual Meeting of the European Federation of Animal Science (2019)
Olde, E.M. de - \ 2019
Challenges of livestock farming systems in relation to society
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