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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Eindrapportage Ondersteuningsfaciliteit Voedselzekerheid : 2017 - 2018
Brouwer, J.H. - \ 2019
Wageningen : Wageningen Centre for Development Innovation (WCDI-19-063 ) - 30 p.
The FAIR Funder pilot programme to make it easy for funders to require and for grantees to produce FAIR Data
Wittenburg, Peter ; Sustkova, Hana Pergl ; Montesanti, Annalisa ; Bloemers, Margreet ; Waard, S.H. de; Musen, Mark A. ; Graybeal, John ; Hettne, Kristina M. ; Jacobsen, Annika ; Pergl, Robert ; Hooft, Rob W.W. ; Staiger, Christine ; Gelder, Celia W.G. van; Knijnenburg, Sebastiaan L. ; Arkel, A.C. van; Meerman, Bert ; Wilkinson, Mark D. ; Sansone, S.A. ; Rocca-Serra, Philippe ; McQuilton, Peter ; Gonzalez-Beltran, Alejandra N. ; Aben, G.J.C. ; Henning, P. ; Menezes Alencar, Maria Simone de; Ribeiro, C. ; Silva, C.R.L. ; Sayao, Luis ; Sales, Luana ; Veiga, Viviane ; Lima, Jefferson ; Dib, Simone ; Santos, Paula Xavier dos; Murtinho, R. ; Tendel, Jakob ; Schaap, B.F. ; Brouwer, P.M. ; Gavai, A.K. ; Bouzembrak, Yamine ; Marvin, Hans J.P. ; Mons, Albert ; Kuhn, Tobias ; Gambardella, A.A. ; Miranda Azevedo, Ricardo de; Muhonen, Vesa ; Naald, Mira van der; Smit, N.W. ; Buys, M.J. ; Bruin, Taco F. de; Schoots, Fieke ; Goodson, H.J.E. ; Rzepa, Henry S. ; Jeffery, Keith G. ; Shanahan, Hugh P. ; Axton, M. ; Tkachenko, Veniamin ; Deslattes Mays, Anne ; Meyers, Natalie ; Conlon, Michael ; Haak, Laurel L. ; Schultes, Erik - \ 2019
arXiv - 13 p.
There is a growing acknowledgement in the scientific community of the importance of making experimental data machine findable, accessible, interoperable, and reusable (FAIR). Recognizing that high quality metadata are essential to make datasets FAIR, members of the GO FAIR Initiative and the Research Data Alliance (RDA) have initiated a series of workshops to encourage the creation of Metadata for Machines (M4M), enabling any self-identified stakeholder to define and promote the reuse of standardized, comprehensive machine-actionable metadata. The funders of scientific research recognize that they have an important role to play in ensuring that experimental results are FAIR, and that high quality metadata and careful planning for FAIR data stewardship are central to these goals. We describe the outcome of a recent M4M workshop that has led to a pilot programme involving two national science funders, the Health Research Board of Ireland (HRB) and the Netherlands Organisation for Health Research and Development (ZonMW). These funding organizations will explore new technologies to define at the time that a request for proposals is issued the minimal set of machine-actionable metadata that they would like investigators to use to annotate their datasets, to enable investigators to create such metadata to help make their data FAIR, and to develop data-stewardship plans that ensure that experimental data will be managed appropriately abiding by the FAIR principles. The FAIR Funders design envisions a data-management workflow having seven essential stages, where solution providers are openly invited to participate. The initial pilot programme will launch using existing computer-based tools of those who attended the M4M Workshop.
Inzameling plastic groeit, maar we leveren ook veel onbruikbaar materiaal in
Brouwer, M.T. - \ 2019
Eating behaviour of adolescent schoolgirls in Malang, East Java: A qualitative study
Sondari, Mulia ; Brouwer, Inge ; Februhartanty, Judhiastuty - \ 2019
Malaysian Journal of Nutrition 25 (2019). - ISSN 1394-035X - p. S87 - S96.
Adolescent schoolgirls - Eating behaviour - Indonesia - Malang

Introduction: Poor eating behaviour is known to lead to nutritional deficiency among adolescents. At the same time, poor eating behaviour characterised by dietary excesses could lead to overweight and obesity. The present study aimed to explore the eating behaviour of adolescent schoolgirls in Malang, East Java Province, Indonesia, and to determine the factors that influenced their eating behaviour. Methods: This was a qualitative study, guided by the Social Cognitive Theory (SCT), which focused on individual and environmental influences to better understand health-related behaviours, such as eating behaviour. Triangulation was applied to the study subjects (adolescent girls, their mothers, and school staff). The methods used included individual in-depth interviews and focus group discussions. Qualitative data analyses were performed using Atlas.ti 7. Results: Most participants showed poor eating behaviour that was characterised by skipping breakfast, frequent consumption of fast foods and the consumption of local food with low nutrient content. Their eating behaviour was influenced by individual factors including personal preferences, the price of the food, and by environmental factors, such as the family, school and neighbourhood. Conclusion: Our findings showed that adolescent girls in Malang appeared to be aware of healthy eating but they showed unsatisfactory eating practices. Interventions are suggested to improve the poor eating behaviour of the adolescents toward avoiding malnutrition consequences.

Patterns of community assembly in the developing chicken microbiome reveal rapid primary succession
Jurburg, Stephanie D. ; Brouwer, Michael S.M. ; Ceccarelli, Daniela ; Goot, Jeanet van der; Jansman, Alfons J.M. ; Bossers, Alex - \ 2019
MicrobiologyOpen 8 (2019)9. - ISSN 2045-8827 - p. e00821 - e00821.
broiler - chicken microbiome - community assembly - fecal microbiome - primary succession

The fine-scale temporal dynamics of the chicken gut microbiome are unexplored, but thought to be critical for chicken health and productivity. Here, we monitored the fecal microbiome of healthy chickens on days 1-7, 10, 14, 21, 28, and 35 after hatching, and performed 16S rRNA amplicon sequencing in order to obtain a high-resolution census of the fecal microbiome over time. In the period studied, the fecal microbiomes of the developing chickens showed a linear-log increase in community richness and consistent shifts in community composition. Three successional stages were detected: the first stage was dominated by vertically transmitted or rapidly colonizing taxa including Streptococcus and Escherichia/Shigella; in the second stage beginning on day 4, these taxa were displaced by rapid-growing taxa including Lachnospiraceae and Ruminococcus-like species variants; and in the third stage, starting on day 10, slow-growing, specialist taxa including Candidatus Arthrobacter and Romboutsia were detected. The patterns of displacement and the previously reported ecological characteristics of many of the dominant taxa observed suggest that resource competition plays an important role in regulating successional dynamics in the developing chicken gut. We propose that the boundaries between successional stages (3-4 and 14-21 days after hatching) may be optimal times for microbiome interventions.

The impact of collection portfolio expansion on key performance indicators of the Dutch recycling system for Post-Consumer Plastic Packaging Waste, a comparison between 2014 and 2017
Brouwer, Marieke ; Picuno, Caterina ; Thoden van Velzen, Eggo U. ; Kuchta, Kerstin ; Meester, Steven De; Ragaert, Kim - \ 2019
Waste Management 100 (2019). - ISSN 0956-053X - p. 112 - 121.
Collection portfolio expansion - Net recycling yields - Polymeric purity of recycled products - Post-consumer plastic packaging waste - Recycling

The recycling network of post-consumer plastic packaging waste (PCPPW) was studied for the Netherlands in 2017 with material flow analysis (MFA) and data reconciliation techniques. In comparison to the previous MFA of the PCPPW recycling network in 2014, the predominant change is the expansion of the collection portfolio from only plastic packages to plastic packages, beverage cartons and metal objects. The analysis shows that the amounts of recycled plastics products (as main washed milled goods) increased from 75 to 103 Gg net and the average polymeric purity of the recycled products remained nearly constant. Furthermore, the rise in the amounts of recycled products was accompanied with a rise in the total amount of rejected materials at cross docking facilities and sorting residues at the sorting facilities. This total amount grew from 19 Gg in 2014 to 70 Gg gross in 2017 and is over-proportional to the rise in recycled products. Hence, there is a clear trade-off between the growth in recycled plastics produced and the growth in rejects and residues. Additionally, since the polymeric purity of the recycled plastics did not significantly improve during the last years, most of the recycled plastics from PCPPW are still only suited for open-loop recycling. Although this recycling system for PCPPW is relatively advanced in Europe, it cannot be considered circular, since the net recycling yield is only 26 ± 2% and the average polymeric purity of the recycled plastics is 90 ± 7%.

Diet quality indices for research in low- and middle-income countries: A systematic review
Trijsburg, Laura ; Talsma, Elise F. ; Vries, Jeanne H.M. De; Kennedy, Gina ; Kuijsten, Anneleen ; Brouwer, Inge D. - \ 2019
Nutrition Reviews 77 (2019)8. - ISSN 0029-6643 - p. 515 - 540.
diet index - diet quality - dietary assessment - food systems research - low- and middle-income countries

Context: Dietary intake research has increasingly focused on improving diet quality in low- and middle-income countries (LMICs). Accompanying this is the need for sound metrics to assess diet quality. Objective: This systematic literature review aims to describe existing diet quality indices for general populations and highlights recommendations for developing such indices for food system research in LMICs. Data sources: Three electronic databases were searched for papers published between January 2008 and December 2017. Data extraction: Articles published in English and describing the development of an index to measure overall diet quality, irrespective of whether they were for high-income countries or LMICs, were included. Data analysis: Eighty-one indices were identified, over two thirds were based on national dietary guidelines from high-income countries. Of the 3 key diet quality dimensions, "diversity" was included in all 18 indices developed for LMICs, "moderation" was captured by most, and "nutrient adequacy" was included 4 times. Conclusions: Indices need to be developed that include all dimensions, include foods and/or food groups rather than nutrients, use an optimal range for individual components in the score, and express the intake of healthy and unhealthy components separately. Importantly, validation of the index should be part of its development. 2019 The Author(s) 2019. Published by Oxford University Press on behalf of the International Life Sciences Institute.

Prenatal infant feeding intentions and actual feeding practices during the first six months postpartum in rural Rwanda: a qualitative, longitudinal cohort study
Ahishakiye, J. ; Bouwman, L.I. ; Vaandrager, L. ; Koelen, M.A. ; Brouwer, I.D. - \ 2019
- 1 p.
Naar Drachten, dus twee zakken afval mee
Thoden van Velzen, Ulphard ; Brouwer, Marieke ; Alvarado Chacon, Fresia - \ 2019
Energie- en waterbesparing: Hoe zit het met de actiebereidheid van Nederlanders?
Brouwer, Stijn ; Vliet, B.J.M. van; Fujita, Y. ; Grijp, N. van der - \ 2019
Water Governance 2019 (2019)2. - ISSN 2211-0224 - p. 24 - 30.
Luchtvervuiling, natuuraantasting, en vooral klimaatverandering zijn vrijwel dagelijks voorpaginanieuws. Voor de aanpak ervan kijkt de overheid naar bedrijven, maatschappelijke organisaties en ook burgers. Het afgelopen decennium deden termen als energieke samenleving (Hajer, 2011), participatiesamenleving (Troonrede 2013) en doe-democratie (Ministerie van Binnenlandse Zaken, 2013) hun intrede. Beleidsmatig krijgt de maatschappelijke betrokkenheid vorm via bijvoorbeeld initiatieven verpakt als Green Deals1 (Gooskens et al, 2016), Klimaattafels en Regionale Energie Strategieën.2 Zo is het volgens de afspraken in het ontwerp Klimaatakkoord (uit eind 2018) de bedoeling dat op termijn 50% van de elektriciteitsproductie in handen is van lokale partijen.3,4 De burger wordt hierin niet alleen meer gezien als consument, afnemer of belastingbetaler, maar als medeverantwoordelijke voor de (duurzame) productie, beheer en opslag van met name elektriciteit. Ook in andere sectoren zoals water, voedsel en transport is deze tendens zichtbaar. Burgers worden uitgedaagd na te denken over de implicaties voor milieu en klimaat bij hun uiteenlopende keuzes rond voedsel (‘een dagje zonder vlees’), manier van reizen (‘vliegschaamte’), verwarmen (‘graadje lager’), koken (‘van het gas af’) tot tuininrichting (‘onttegelen’) en waterbeheer (‘minuutje korter douchen’).
Optimizing young child nutrition in Ethiopia : the effectiveness, acceptance and risks of micronutrient powders
Hafebo, A.S. - \ 2019
Wageningen University. Promotor(en): E.J.M. Feskens; I.D. Brouwer; S.J.M. Osendarp. - Wageningen : Wageningen University - ISBN 9789463439626 - 250 p.
Bloemisten verkopen nog altijd het ‘groene monster’, de Japanse duizendknoop
Dijk, Chris van - \ 2019
Hergebruiken of vervangen?
Brouwer, M.T. ; Bolck, C.H. - \ 2019
In: Plastic: Van zegen tot vloek / van Everdingen, Jannes, van Donk, Ellen, Poolen, Daniël, Buiter, Rob, Den Haag : Stichting Biowetenschappen en Maatschappij (Cahier Biowetenschappen en Maatschappij 2) - ISBN 9789073196957 - p. 64 - 73.
Volgens het ministerie van Infrastructuur en Waterstaat, zou Nederland
rond 2050 ‘afvalvrij’ moeten leven. Recycling van plastic is wat dat betreft
een hoopvolle optie, zegt de Wageningse onderzoekster Marieke Brouwer.
Ook biologisch afbreekbare plastics kunnen een rol spelen, zegt haar
collega Christiaan Bolck, ‘al is over die term de nodige verwarring.’
Methodology for developing and evaluating food-based dietary guidelines and a Healthy Eating Index for Ethiopia: A study protocol
Bekele, Tesfaye Hailu ; Vries, Jeanne J.H.M. De; Trijsburg, Laura ; Feskens, Edith ; Covic, Namukolo ; Kennedy, Gina ; Brouwer, Inge D. - \ 2019
BMJ Open 9 (2019)7. - ISSN 2044-6055
Ethiopia - food-based dietary guidelines - healthy diet - healthy eating index - protocol

Introduction Food-based dietary guidelines (FBDGs) are used to promote and maintain healthy eating in a population, by providing country-specific guidance. However, many African countries like Ethiopia do not have FBDGs. This paper describes the methodology for the development of Ethiopian FBDGs and for creating and evaluating a Healthy Eating Index and a scoring tool that can be used to monitor the adherence of the population to FBDGs. Methods and analysis A multidisciplinary technical working group will be tasked to develop FBDGs for the general population above 2 years of age based on identification of priority diet-related public health problems and risk factors, and a systematic review of dietary patterns in relation to the identified priority health outcomes, following a multistep process. FBDGs will be translated into daily food choices for specific subpopulations by applying linear programming using data from the National Food Consumption Survey (NFCS) of 2011. FBDGs will be evaluated for cultural appropriateness, acceptability, consumer understanding and practicality. A dietary gap assessment will be conducted by comparing the national food supply with the country's food demand. In addition an Ethiopian Healthy Eating Index (EHEI) will be developed based on the FBDGs using the NFCS data. The EHEI will be evaluated by comparing the EHEI Score based on 24 hours diet recall with that of the EHEI Score based on a Food Frequency Questionnaire, by analysing the association of the EHEI Score with population characteristics and micronutrient intake with or without additional adjustment for energy intake. Finally, a brief Food Quality Screening tool scoring for the important EHEI components will be developed to enable evaluation for counselling. Ethics and dissemination Ethical approval is received from the Scientific and Ethical Review Office of the Ethiopian Public Health Institute. The findings will be disseminated through peer-reviewed publications.A dissemination workshop will be organised with key implementing sectors of the food system for a healthier diet ( and with key public and private partners. The findings from this study will be translated into FBDGs and shared through conferences, reports and the mass media (TV and radio). Trial registration number NCT03394963; Pre-results.

Parental Attitudes, Roles and Influences on Decision Making for Child Well-being on the South Coast of Kenya : a Descriptive Study
Sonkola, Kennedy ; Kvalsvig, Jane Dene ; Brouwer, Inge ; Holding, Penny ; Taylor, Myra - \ 2019
Child Care in Practice (2019). - ISSN 1357-5279
Africa - Child health - fathers - mothers - parenting

While it is well-accepted that mothers play a key role in child health outcomes, the role of the father is less well understood. This study, the first of two investigations of the relationship between the social environment and child health, growth and development, was nested in a child nutrition programme carried out in Kwale County. At present child health services are largely administered through government Mother and Child Health programmes. Previous community consultations have raised the need to include all family members, particularly fathers, in the process of addressing child health and development issues. To provide a background to planning for inclusion of the wider family this study investigated local attitudes and beliefs towards parenting and how these may influence child health outcomes. In this study, we used qualitative in-depth interviews of 61 co-habiting couples with fathers and mothers interviewed separately, analysed using NVivo 10 software, to look for patterns of responses with regards to attitudes and behaviours relevant to child health. The study findings suggested that both mothers and fathers overall valued their status as parents and were willing to be involved in promoting the well-being of their children. Fathers and mothers saw that they carried out a different role, and drew on different influences in their decision making and role definition. The main barrier to direct paternal involvement in the health care of their children was reported to be the cost of attendance at clinics, both in terms of time and money. Innovation in how medical services engage with families is required to increase the supportive role that fathers can provide by using opportunities such as community meetings where men gather to explain child health risks and preventative measures.

Identifying Dietary Strategies to Improve Nutrient Adequacy among Ethiopian Infants and Young Children Using Linear Modelling
Samuel, Aregash ; Osendarp, Saskia J.M. ; Ferguson, Elaine ; Borgonjen, Karin ; Alvarado, Brenda M. ; Neufeld, Lynnette M. ; Adish, Abdulaziz ; Kebede, Amha ; Brouwer, Inge D. - \ 2019
Nutrients 11 (2019)6. - ISSN 2072-6643
complementary food - Ethiopia - food-based dietary recommendations - nutrient adequacy - Optifood analysis

Nutrient adequacy of young children's diet and best possible strategies to improve nutrient adequacy were assessed. Data from the Ethiopian National Food Consumption Survey were analysed using Optifood (software for linear programming) to identify nutrient gaps in diets for children (6-8, 9-11 and 12-23 months), and to formulate feasible Food-Based Dietary Recommendations (FBDRs) in four regions which differ in culture and food practices. Alternative interventions including a local complementary food, micronutrient powders (MNPs), Small quantity Lipid-based Nutrient Supplement (Sq-LNS) and combinations of these were modelled in combination with the formulated FBDRs to compare their relative contributions. Risk of inadequate and excess nutrient intakes was simulated using the Estimated Average Requirement cut-point method and the full probability approach. Optimized local diets did not provide adequate zinc in all regions and age groups, iron for infants <12 months of age in all regions, and calcium, niacin, thiamine, folate, vitamin B12 and B6 in some regions and age-groups. The set of regional FBDRs, considerably different for four regions, increased nutrient adequacy but some nutrients remained sub-optimal. Combination of regional FBDRs with daily MNP supplementation for 6-12 months of age and every other day for 12-23 months of age, closed the identified nutrient gaps without leading to a substantial increase in the risk of excess intakes.

Basisregistratie Ondergrond (BRO) - actualisatie bodemkaart : Herkartering van de bodem in Eemland
Brouwer, F. ; Walvoort, D.J.J. - \ 2019
Wageningen : Wettelijke Onderzoekstaken Natuur & Milieu (WOt-technical report 155) - 39
Wageningen Environmental Research (WENR) has been in the process of updating the Soil Map of the Netherlands, scale 1:50,000, since 2010. The map distinguishes between various different soil units with peat layers in the upper horizons of the profile. The thickness of the peat is being reduced by oxidation and subsidence. To manage these peat soils it is important to have information on the thickness of the peat layer. This study has resulted in a peat thickness map for the peat soil areas in the Eemland region north of Amersfoort and an updated soil map of these peat soil areas at scale 1:50,000.
Breedspoortrekker wordt populairder
Brouwer, Thie Arend ; Rijk, Joost - \ 2019
The Importance of Maternal Folate Status for Brain Development and Function of Offspring
Naninck, Eva F.G. ; Stijger, Pascalle C. ; Brouwer-Brolsma, Elske M. - \ 2019
Advances in Nutrition 10 (2019)3. - ISSN 2161-8313 - p. 502 - 519.
brain - cognition - developmental - folate - folic acid - maternal - neuropsychological - prenatal

The importance of an adequate periconceptional maternal folate status to prevent fetal neural tube defects has been well demonstrated and resulted in the recommendation for women to use folic acid supplements during the periconception period. The importance of maternal folate status for offspring neurodevelopment and brain health is less well described. We reviewed the current evidence linking maternal folate status before conception and during pregnancy with neurodevelopment and cognition of the offspring. We discuss both animal and human studies. Preclinical research revealed the importance of maternal folate status for several key processes required for normal neurodevelopment and brain functioning in the offspring, including DNA synthesis, regulation of gene expression, synthesis of phospholipids and neurotransmitters, and maintenance of healthy plasma homocysteine concentrations. Human observational studies are inconclusive; about half have shown a positive association between maternal folate status and cognitive performance of offspring. Whereas some studies suggest a positive association between maternal folate intake and cognition of offspring during childhood, data from interventional studies are too limited to conclude that there is a direct effect. Future preclinical studies are needed to help us characterize the behavioral effects, understand the underlying mechanisms, and to establish an optimal dosage and time window of folate supplementation. Moreover, more conclusive data from well-designed human observational studies and randomized controlled trials are needed to determine whether current recommendations for folic acid supplementation during pregnancy cover the needs for normal cognitive development in the offspring.

Harvesting nutrition : Grain legumes and nutritious diets in sub-Saharan Africa
Jager, Ilse de - \ 2019
Wageningen University. Promotor(en): K.E. Giller, co-promotor(en): I.D. Brouwer. - Wageningen : Wageningen University - ISBN 9789463439350 - 240
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