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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Practices of Food Provisioning in Alternative Food Networks: How Different Practitioners Engage in Different Practices, Depending on Their Emotional Energy
Veen, E.J. ; amico, S. D' - \ 2019
International Journal of Sociology of Agriculture and Food 25 (2019)1. - ISSN 0798-1759 - p. 449 - 468.
In this article we combine social practice theory and interaction ritual theory to better understand the dynamics of learning processes in alternative food networks, and how these influence levels of alternative food network engagement. We apply this combination to the study of a solidarity purchasing group in southern Italy. We show that the levels of emotional energy built up between different groups of people within this solidarity purchasing group explain the extent to which participants are willing and able to overcome the practical difficulties associated with being part of the solidarity purchasing group, and change their routines accordingly. We recognize two different groups of users, with different levels of emotional energy; they vary according to the extent to which participants share motivations and understandings. The two groups attach different meanings to their involvement and associate those meanings with different activities that solidarity purchasing group engagement entails. We conclude that the two groups engage in different social practices – even though they are part of the same solidarity purchasing group. This finding provides insights into the heterogeneity both within and between alternative food networks as described in the literature; it explains different degrees of involvement, as well as reasons not to incur the practical costs associated with solidarity purchasing group involvement by quitting. Our study applies the idea of Weenink and Spaargaren that emotional energy can function as an explanatory force regarding why people engage in certain practices, and it sheds more light on how to define a practice.
Processes of collective identity work in community organizations: An interaction ritual chains view
Dentoni, D. ; Amico, S. D'; Pascucci, S. ; Branzei, Oana - \ 2018
Il ruolo delle filiere corte: un'analisi del contesto calabrese
amico, S. D'; Bock, B.B. ; Luca, A.I. de; Gulisano, G. - \ 2016
AgriRegioniEuropa 12 (2016)44. - ISSN 1828-5880
Alternative Food Networks (AFNs) in Calabria : a sociological exploration of interaction dynamics
amico, S. D' - \ 2015
Wageningen University. Promotor(en): Han Wiskerke; G. Gulisano, co-promotor(en): Bettina Bock; Stefano Pascucci. - Wageningen : Wageningen University - ISBN 9789462572713 - 269
voedsel - sociale netwerken - gemeenschappen - voedselvoorziening - voedselgroepen - consumenten - participatie - boeren - markten - landbouw - calabrië - italië - food - social networks - communities - food supply - food groups - consumers - participation - farmers - markets - agriculture - calabria - italy
Conceptualising interaction processes in Civic Food Network (CFN)
Amico, S. D'; Derkezen, P. ; Wiskerke, J. ; Pascucci, S. - \ 2012
Developmental, genetic and environmental factors affect the expression of flavonoid genes, enzymes and metabolites in strawberry fruits
Carbone, F. ; Preuss, A. ; Vos, C.H. de; Amico, E. d'; Perrotta, G. ; Bovy, A.G. ; Martens, S. ; Rosati, C. - \ 2009
Plant, Cell & Environment 32 (2009)8. - ISSN 0140-7791 - p. 1117 - 1131.
fragaria x ananassa - cellular-localization - phenolic-compounds - quality traits - biosynthesis - arabidopsis - pathway - proanthocyanidins - accumulation - dioxygenases
The influence of internal (genetic and developmental) and external (environmental) factors on levels of flavonoid gene transcripts, enzyme activity and metabolites was studied in fruit of six cultivated strawberry (Fragaria × ananassa Duch.) genotypes grown at two Italian locations. Gene expression and enzyme activity showed development- and genotype-associated patterns, revealing gene coordination. Analysis clarified the regulation mechanism of the hydroxylation status of the B-ring of the major flavonoid pools and pointed out examples of genotype-specific post-transcriptional regulation mechanisms and key steps of pathway regulation in strawberry fruits. Metabolite profiles were strongly affected by development and genotype. Flavan-3-ols, their proanthocyanidin (PA) derivatives and anthocyanins were the most abundant metabolites. Flavonol levels and PA-associated traits (epicatechin/catechin ratio and mean degree of polymerization) showed significant environmental effects. Multivariate and correlation analyses determined the relationships among genes, enzymes and metabolites. The combined molecular and biochemical information elucidated more in depth the role of genetic and environmental factors on flavonoid metabolism during strawberry fruit development, highlighting the major impact of developmental processes, and revealing genotype-dependent differences and environmental effects on PA-related traits.
Characterization of major enzymes and genes involved in flavonoid and proanthocyanidin biosynthesis during fruit development in strawberry (Fragaria x ananassa).
Almeida, J.R. ; Amico, E. d'; Preuss, A. ; Carbone, F. ; Vos, C.H. de - \ 2007
Archives of Biochemistry and Biophysics 465 (2007)1. - ISSN 0003-9861 - p. 61 - 71.
dihydroflavonol 4-reductases - leucoanthocyanidin reductase - anthocyanidin reductases - heterologous expression - antioxidant activity - molecular-cloning - quality traits - synthase - identification - leaves
The biosynthesis of flavonoids and proanthocyanidins was studied in cultivated strawberry (Fragaria x ananassa) by combining biochemical and molecular approaches. Chemical analyses showed that ripe strawberries accumulate high amounts of pelargonidin-derived anthocyanins, and a larger pool of 3',4'-hydroxylated proanthocyanidins. Activities and properties of major recombinant enzymes were demonstrated by means of in vitro assays, with special emphasis on specificity for the biologically relevant 4'- and 3',4'-hydroxylated compounds. Only leucoanthocyanidin reductase showed a strict specificity for the 3',4'-hydroxylated leucocyanidin, while other enzymes accepted either hydroxylated substrate with different relative activity rates. The structure of late flavonoid pathway genes, leading to the synthesis of major compounds in ripe fruits, was elucidated. Complex developmental and spatial expression patterns were shown for phenylpropanoid and flavonoid genes in fruits throughout ripening as well as in leaves, petals and roots. Presented results elucidate key steps in the biosynthesis of strawberry flavonoid end products. (c) 2007 Elsevier Inc. All rights reserved.
Biological air filter for air quality control
Ras, N. van; Krooneman, J. ; Ogink, N.W.M. ; Willers, H.C. ; Amico, A. D'; Natale, C. Di; Godia, F. ; Albiol, J. ; Perez, J. ; Martinez, N. ; Dixon, M. ; Llewellyn, D. ; Eckhard, F. ; Zona, G. ; Fachecci, L. ; Kraakman, B. ; Demey, D. ; Michel, N. ; Darlington, A. - \ 2005
In: Microgravity applications programme : successful teaming of science and industry / Wilson, A., Noordwijk : ESA [etc.] (SP-1290 ) - ISBN 9290929715 - p. 270 - 280.
Monitoring of biological odour filtration in closed environments with olfactometry and an electronic nose
Willers, H.C. ; Gijsel, P. de; Ogink, N.W.M. ; Amico, A. D'; Martinelli, E. ; Natale, C. Di; Ras, N. van; Waarde, J. van der - \ 2004
Water Science and Technology 50 (2004)4. - ISSN 0273-1223 - p. 93 - 100.
milieubeheersing - instrumenten (meters) - stankemissie - olfactometers - geurstoffen - monitoring - gecontroleerde omgeving - sensors - biologische filtratie - luchtfilters - environmental control - instruments - odour emission - olfactometers - odours - monitoring - controlled atmospheres - sensors - biological filtration - air filters
Air treatment with a compact biological membrane filter, and air quality monitoring with an electronic nose were tested in the laboratory on air from a cage containing six mice. Additional analyses of air to and from the filter were performed using olfactometry and ammonia and hydrogen sulphide gas detection tubes. The biological air filter is a module containing biofilm-coated membrane fibres that separate a closed liquid loop from a gas phase. Odour compounds and oxygen diffuse through the membranes from the gas phase to the biofilm, where they are degraded to carbon dioxide and water
Air treatment with a compact biological membrane filter, and air quality monitoring with an electronic nose were tested in the laboratory on air from a cage containing six mice. Additional analyses of air to and from the filter were performed using olfactometry and ammonia and hydrogen sulphide gas detection tubes. The biological air filter is a module containing biofilm-coated membrane fibres that separate a closed liquid loop from a gas phase. Odour compounds and oxygen diffuse through the membranes from the gas phase to the biofilm, where they are degraded to carbon dioxide and water. The prototype "ENOBE" electronic nose is based on an array of eight thickness shear mode resonators (TSMR), also known in the literature as quartz microbalance sensors. The chemical sensitivity is given by molecular films of metalloporphyrins and similar compounds. Chemical interaction of compounds in the air with the vibrating sensors induces a frequency change of the vibration that can be measured as a signal. The air from the mouse cage had a strong odour (3490 OUE/m(3)). The biological membrane filter performed well, achieving over 80% odour and ammonia reduction. The electronic nose signal could be correlated with the inlet and outlet air-quality of the biological filter, making it a promising method for monitoring air quality in closed environments.
Assessment of biological priorities for conservation in the Guinean-Congolian Forest Region
Blom, A. ; Kamdem Toham, A. ; Amico, J. D'; O'Hara, D. ; Abell, R. ; Olson, D. - \ 2001
Washington, DC : World Wildlife Fund
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