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.

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Quality perception, purchase intention, and the impact of information on the evaluation of refined Pacific cupped oysters (Crassostrea gigas) by Dutch consumers
Houcke, Jasper van; Altintzoglou, Themistokilis ; Linssen, Jozef ; Luten, Joop - \ 2018
Journal of the Science of Food and Agriculture 98 (2018)12. - ISSN 0022-5142 - p. 4778 - 4785.
consumer - Crassostrea gigas - product evaluation - purchase intention - quality - refinement

BACKGROUND: Oyster refinement using land-based pond systems is a new activity in the Dutch oyster sector. It increases the oyster's tissue weight and changes its sensorial properties. However, the response of Dutch consumers towards refined oysters is unknown. The research aim was to gain insight into the importance of oyster quality parameters, drivers for oyster consumption, and acceptance of refined oysters by Dutch consumers, taking into account the information given to them about the product and process. RESULTS: Taste, texture, and odor are the most important oyster quality characteristics for Dutch consumers. The outcome of questionnaires showed that willingness to buy and pay is influenced by factors such as the oysters' country of origin, cultivation area, and flavor profile. Refinement did not affect willingness to buy and pay. Furthermore Dutch consumers seem to have a preference for the flavor profile of refined oysters. Consumer evaluation showed that refined Pacific cupped oysters were perceived as sweeter compared with non-refined oysters. When information on the cultivation process was disclosed, overall appreciation of refined oysters by consumers increased. CONCLUSION: New insights in the importance of oyster quality characteristics for Dutch consumers are generated that can be used in the development of refined Pacific cupped oysters.

The TeRiFiQ project : Combining technologies to achieve significant binary reductions in sodium, fat and sugar content in everyday foods whilst optimising their nutritional quality
Salles, C. ; Kerjean, J.R. ; Veiseth-Kent, E. ; Stieger, M. ; Wilde, P. ; Cotillon, C. - \ 2017
Nutrition Bulletin 42 (2017)4. - ISSN 1471-9827 - p. 361 - 368.
consumer - fat - food - perception - sodium - sugar
Most developed countries are confronted with rising rates of diseases related to unhealthy eating habits, particularly the excessive consumption of salt, saturated fat and free sugars. However, fat, sugars and salt in food influence not only its nutritional qualities but also its sensory properties, safety (e.g. shelf life) and affordability. The main challenge is to formulate healthier foods that are acceptable to consumers. In this context, the overall objective of TeRiFiQ was to achieve significant binary reductions in the salt-fat and sugar-fat contents of frequently consumed food products around Europe, while, at the same time, ensuring the products’ nutritional and sensorial qualities, safety and affordability for both industry and consumers was not compromised. TeRiFiQ addressed four major food categories: cheeses, processed meat, bakery and sauce products. Different strategies adapted to each food category were used to reduce the target ingredients. Significant reductions in the salt-fat and fat-sugar contents of a number of cheese, processed meat, bakery and sauce products were achieved, and these changes were found to be acceptable to consumers. The most promising reformulated food products were developed at the industrial scale.
Household food waste
Wahlen, S. ; Winkel, Thomas - \ 2017
In: Reference Module in Food Science / Smithers, Geoffrey W., Elsevier - ISBN 9780081005965 - 5 p.
household - food waste - consumer
Food waste is debated not only in the light of sustainable consumption in research and policy, but also in the broader public. This article focuses on food waste in household contexts, what is widely believed the end of the food chain. However, household food waste is far more complex and intricate than one might believe. We outline distinct features of food waste on the level of the individual consumer and along processes in the household, from food provision to storing and preparing meals and finally eating and disposing of food. Alongside, important features of household food waste relate to more structural aspects in frameworks and regulations of consumer policy. This more structural perspective is also reflected in broader food cultures in terms of norms and moralities, as well as in associated discourses.
Der Verbraucherbegriff im 21. Jahrhundert : Verbraucherbürger und Verbraucherproduzent
Purnhagen, K. ; Wahlen, S. - \ 2016
Berlin : Sachverständigenrat für Verbraucherfragen (Studien und Gutachten im Auftrag des Sachverständigenrats für Verbraucherfragen ) - 66 p.
consumer - sharing economy - collaborative consumption - consumer law
The perceived impact of the National Health Service on personalised nutrition service delivery among the UK public
Fallaize, R. ; Macready, A.L. ; Butler, L.T. ; Ellis, J.A. ; Berezowska, A. ; Fischer, A.R.H. ; Walsh, M.C. ; Gallagher, C. ; Stewart-Knox, B.J. ; Kuznesof, S. ; Frewer, L.J. ; Gibney, M.J. ; Lovegrove, J.A. - \ 2015
The British journal of nutrition 113 (2015)8. - ISSN 0007-1145 - p. 1271 - 1279.
nutrigenomics - communication - disease - information - consumer - medicine - intervention - acceptance - knowledge - attitudes
Personalised nutrition (PN) has the potential to reduce disease risk and optimise health and performance. Although previous research has shown good acceptance of the concept of PN in the UK, preferences regarding the delivery of a PN service (e.g. online v. face-to-face) are not fully understood. It is anticipated that the presence of a free at point of delivery healthcare system, the National Health Service (NHS), in the UK may have an impact on end-user preferences for deliverances. To determine this, supplementary analysis of qualitative data obtained from focus group discussions on PN service delivery, collected as part of the Food4Me project in the UK and Ireland, was undertaken. Irish data provided comparative analysis of a healthcare system that is not provided free of charge at the point of delivery to the entire population. Analyses were conducted using the ‘framework approach’ described by Rabiee (Focus-group interview and data analysis. Proc Nutr Soc 63, 655-660). There was a preference for services to be led by the government and delivered face-to-face, which was perceived to increase trust and transparency, and add value. Both countries associated paying for nutritional advice with increased commitment and motivation to follow guidelines. Contrary to Ireland, however, and despite the perceived benefit of paying, UK discussants still expected PN services to be delivered free of charge by the NHS. Consideration of this unique challenge of free healthcare that is embedded in the NHS culture will be crucial when introducing PN to the UK.
Advertising-Induced Embarrassment
Puntoni, S. ; Hooge, I.E. de; Verbeke, W.J.M.I. - \ 2015
Journal of Advertising 44 (2015)1. - ISSN 0091-3367 - p. 71 - 79.
Abstract Consumer embarrassment is a concern for many advertisers. Yet little is known about ad-induced embarrassment. The authors investigate when and why consumers experience embarrassment as a result of exposure to socially sensitive advertisements. The theory distinguishes between viewing potentially embarrassing ads together with an audience that shares the social identity targeted by the ad and viewing the same ads together with an audience that does not share the targeted social identity. Four studies provide support for the theory, demonstrating that advertising targeting and social context jointly influence feelings of embarrassment and advertising effectiveness. These findings have important theoretical and practical implications for advertisers.
It is not just a meal, it is an emotional experience – A segmentation of older persons based on the emotions that they associate with mealtimes
Uijl, L.C. den; Jager, G. ; Graaf, C. de; Waddell, W.J. ; Kremer, S. - \ 2014
Appetite 83 (2014). - ISSN 0195-6663 - p. 287 - 296.
food neophobia - olfactory impairment - eating behavior - consumer - questionnaire - spendthrifts - tightwads - choice - attitudes - motives
Worldwide, the group of older persons is growing fast. To aid this important group in their food and meal requirements, a deeper insight into the expectations and experiences of these persons regarding their mealtimes and snack times is needed. In the current study, we aim to identify consumer segments within the group of vital community-dwelling older persons on the basis of the emotions they associate with their mealtimes and snack times (from now on referred to as mealtimes). Participants (n¿=¿392, mean age 65.8 (years)¿±¿5.9 (SD)) completed an online survey. The survey consisted of three questionnaires: emotions associated with mealtimes, functionality of mealtimes, and psychographic characteristics (health and taste attitudes, food fussiness, and food neophobia). Consumer segments were identified and characterised based on the emotions that the respondents reported to experience at mealtimes, using a hierarchical cluster analysis. Clusters were described using variables previously not included in the cluster analysis, such as functionality of mealtimes and psychographic characteristics. Four consumer segments were identified: Pleasurable averages, Adventurous arousals, Convivial indulgers, and Indifferent restrictives. These segments differed significantly in their emotional associations with mealtimes both in valence and level of arousal. The present study provides actionable insights for the development of products and communication strategies tailored to the needs of vital community-dwelling older persons.
Expert views on societal responses to different applications of nanotechnology: a comparative analysis of experts in countries with different economic and regulatory environments
Gupta, N. ; Fischer, A.R.H. ; George, S. ; Frewer, L.J. - \ 2013
Journal of Nanoparticle Research : an Interdisciplinary Forum for Nanoscale Science and Technology 15 (2013)8. - ISSN 1388-0764
genetically-modified foods - public perceptions - mass-media - gm food - risk - consumer - attitudes - lessons - technologies - biopolitics
The introduction of different applications of nanotechnology will be informed by expert views regarding which (types of) application will be most societally acceptable. Previous research in Northern Europe has indicated that experts believe that various factors will be influential, predominant among these being public perceptions of benefit, need and consumer concern about contact with nanomaterials.These factors are thought by experts to differentiate societal acceptance and rejection of nanotechnology applications. This research utilises a larger sample of experts (N = 67) drawn from Northern America, Europe, Australasia, India and Singapore to examine differences in expert opinion regarding societal acceptance of different applications of nanotechnology within different technological environments, consumer cultures and regulatory regimes. Perceived risk and consumer concerns regarding contact with nanoparticles are thought by all experts to drive rejection, and perceived benefits to influence acceptance, independent of country. Encapsulation and delivery of nutrients in food was thought to be the most likely to raise societal concerns, while targeted drug delivery was thought most likely to be accepted. Lack of differentiation between countries suggests that expert views regarding social acceptance may be homogenous, independent of local contextual factors.
Public Interests and Values in Multi-Level Food Risk Governance: European Responses to Avian Influenza
Krom, M.P.M.M. de; Oosterveer, P.J.M. ; Mol, A.P.J. - \ 2013
Journal of Environmental Policy and Planning 15 (2013)2. - ISSN 1523-908X - p. 161 - 177.
policy - consumer
A recent series of food crises in Europe brought home the idea that food risk governance should be informed by sound science as well as by public interests and values to foster trust in food. Yet, how such public perspectives are to be included at the EU and member state levels, and what impacts such incorporation has on public trust in food, remains unclear. This paper studies European food risk governance of ‘H5N1’ avian influenza—a major risk facing Europe after EU and member state food policy frameworks were substantially reformed. It analyses the inclusion of sound science in combination with public interests and values in governing food risks from avian influenza in three member states (the Netherlands, France, and the UK) and at the EU level. The paper concludes with discussing political and epistemological tensions that emerge from using universalistic scientific knowledge and multivalent public risk experiences as separate bases for policy decisions and reflects on the effects of these tensions on public trust in food.
Rural public acceptance of renewable energy deployment: The case of Shandong in China
Liu Wenling, Wenling ; Wang Can, ; Mol, A.P.J. - \ 2013
Applied Energy 102 (2013). - ISSN 0306-2619 - p. 1187 - 1196.
willingness-to-pay - green electricity - planned behavior - reasoned action - wind power - social acceptance - determinants - attitudes - consumer - uk
China has set ambitious goals to increase the use of renewable energy. Developing renewables in rural areas is also one of the most important energy strategies. This paper examines rural social acceptance of renewable energy deployment taking Shandong as a case study via a field questionnaire survey. Theory of planned behavior is adopted to establish an analytical framework, and a logit model is used to examine possible determinants of local social acceptance. The results show that rural residents are generally supportive renewable energy development given its positive impacts on environment. A stated willingness to pay more for renewable electricity is taken as a variable representing an individual’s behavioral intention. The probability of occurrence of positive intention is found to increase with household income, individual knowledge level and belief about costs of renewable energy use but decrease with individual age. Residents with higher level of income are more likely to be willing to pay more for green electricity, so are the younger people. Enhancive knowledge and understanding about renewable energy (for instance, the cost) would be conducive to win public acceptance of renewable energy deployment.
Evaluation of Seafood Product Concepts by Young Adults and Families with Young Children from Denmark, Norway, and Iceland
Altintzoglou, T. ; Sveinsdottir, K. ; Einarsdottir, G. ; Schelvis, R. ; Luten, J.B. - \ 2012
Journal of Aquatic Food Product Technology 21 (2012)5. - ISSN 1049-8850 - p. 418 - 432.
5 european countries - fish consumption - health involvement - consumer - barriers - quality - determinants - convenience - perception
This article describes the results of a study that tested the responses to 14 seafood concepts among young adults and families with young children in Denmark, Norway, and Iceland. This study was aimed at gaining insight into the evaluation of new seafood product concepts by individuals with low seafood consumption. Based on consumer-reported values and previous concept-testing, 14 seafood product concepts were tested by 296 consumers in a web-based experiment. Consumers' preferences depended on the size of fish, the presence of information, and the fish species offered. Young adult consumers evaluated the product concepts differently than parents of young children. Three consumer clusters, based on attitudinal variables, were identified explaining the differences in the evaluation of the product concepts. The outcome of this study will be used to develop a product for realistic in-home testing.
Can altruism stabilise international climate agreements?
Pol, T.D. van der; Weikard, H.P. ; Ierland, E.C. van - \ 2012
Ecological Economics 81 (2012). - ISSN 0921-8009 - p. 112 - 120.
environmental agreements - contingent valuation - social identity - public-goods - cooperation - preferences - fairness - coalitions - consumer - schemes
We study the impact of altruism on the stability of international climate agreements. We consider the standard two-stage game for the analysis of international environmental agreements where countries announce their participation at the first stage and abatement levels are chosen at the second stage. We modify the game to consider altruism in the participation decision, i.e. countries consider, to a certain extent, the net benefits for other countries in their decisions. We study two types of altruism: impartial altruism, where countries show a concern for all other countries, and community altruism, where the concern extends only to coalition partners. We use the stability of coalitions model (STACO) to illustrate the impacts of both types of altruism on the stability of a climate agreement. We find that a limited degree of altruism is sufficient to stabilise the Grand Coalition such that a globally efficient climate policy can emerge while in the absence of altruism only a fraction of countries would join a climate agreement and the benefits of cooperation would largely remain unexploited. Our results indicate how moving beyond national interests can support the success of international climate agreements
Back to the future? Understanding Change in Food Habits of Farmers' Market Customers
Pascucci, S. ; Cicatiello, C. ; Franco, S. ; Pancino, B. ; Marinov, D. ; Davide, M. - \ 2011
International Food and Agribusiness Management Review 14 (2011)4. - ISSN 1096-7508 - p. 105 - 126.
supply chains - consumer - embeddedness - perceptions - producers - community - networks - quality - economy - space
This study analyses how attending farmers markets may affect consumers’ willingness to change food habits toward high-quality products. A discrete choice model was applied using data col-lected through an extensive field survey in 2009, which involved 400 consumers in 12 different farmers’ markets in Italy. Changing consumption habits was examined taking into account at-tendees' personal profile, motivations, the main features of the farmers' markets, as well as the local social context. Attendees reported an increased consumption of organic products, and fresh vegetables. Motivation seems to play an important role as a driver of change. Results also indi-cate that consumers sensitive to environmental issues related to their consumption choices, are more likely to change food habits in favor of high-quality foods as well as consumers who are looking for fresh products. Based on these findings, possible interventions are explored to further develop farmers' markets and promote high-quality consumption
The sociocultural sustainability of livestock farming: an inquiry into social perceptions of dairy farming.
Boogaard, B.K. ; Oosting, S.J. ; Bock, B.B. ; Wiskerke, J.S.C. - \ 2011
Animal 5 (2011)9. - ISSN 1751-7311 - p. 1458 - 1466.
animal-welfare - lay discourses - agriculture - netherlands - systems - construction - environment - consumer - society - ethics
Over the past 50 years, the scale and intensity of livestock farming have increased significantly. At the same time, Western societies have become more urbanised and fewer people have close relatives involved in farming. As a result, most citizens have little knowledge or direct experience of what farming entails. In addition, more people are expressing concerns over issues such as farm animal welfare. This has led to increasing public demand for more sustainable ways of livestock farming. To date, little research has been carried out on the social pillar of sustainable livestock farming. The aim of this study is to provide insights into the sociocultural sustainability of livestock farming systems. This study reviews the key findings of earlier published interdisciplinary research about the social perceptions of dairy farming in the Netherlands and Norway (Boogaard et al., 2006, 2008, 2010a and 2010b) and synthesises the implications for sociocultural sustainability of livestock farming. This study argues that the (sociocultural) sustainable development of livestock farming is not an objective concept, but that it is socially and culturally constructed by people in specific contexts. It explains the social pillar of the economics/ecological/social model sustainability in terms of the fields of tensions that exist between modernity, traditions and naturality – ‘the MTN knot’ – each of which has positive and negative faces. All three angles of vision can be seen in people's attitudes to dairy farming, but the weight given to each differs between individuals and cultures. Hence, sociocultural sustainability is context dependent and needs to be evaluated according to its local meaning. Moreover, sociocultural sustainability is about people's perceptions of livestock farming. Lay people might perceive livestock farming differently and ascribe different meanings to it than experts do, but their ‘reality’ is just as real. Finally, this study calls for an ongoing collaboration between social and animal scientists in order to develop livestock farming systems that are more socioculturally sustainable.
To Think or Not to Think:The Effect of Cognitive Deliberation on the Influence of Injunctive Versus Descriptive Social Norms
Melnyk, V. ; Herpen, E. van; Fischer, A.R.H. ; Trijp, H.C.M. van - \ 2011
Psychology & marketing 28 (2011)7. - ISSN 0742-6046 - p. 709 - 729.
planned behavior - persuasion - attitudes - focus - believability - involvement - consumption - resistance - reactance - consumer
Consumers can process information containing social norms at different cognitive deliberation levels. This paper investigates the effect of cognitive deliberation for both descriptive and injunctive norms. The experimental study examines the consequences for attitudes and behavioral intentions of these two norm formulations under different levels of deliberation. Results show that (1) cognitive load limits the influence of both norm formulations, and (2) cognitive deliberation increases the effect of descriptive and decreases the effect of injunctive norms. The positive and negative thoughts made salient by the information are shown to lead to these consequences. Marketers therefore need to consider the context and channels in which social norms are communicated, as this can affect the motivation, ability, and/or opportunity of consumers to process the information.
Designing New Meals for an Ageing Population
Costa, A.I.A. ; Jongen, W.M.F. - \ 2010
Critical Reviews in Food Science and Nutrition 50 (2010)6. - ISSN 1040-8398 - p. 489 - 502.
product development - food choice - life-style - means-end - consumer - categorization - judgments - market - classification - convenience
Today's ageing population is an ever-increasing, highly diverse group of people wanting to live a healthy and enjoyable life. Seniors increasingly see the importance of eating healthy and delicious food in a pleasant environment in achieving happiness and well-being. Up until now, the food industry has been rather slow in transforming the wealth of available knowledge regarding the nutritional needs and sensory perception of the ageing into new food products. Based on our own and the published research of others, we discuss here how the design of new meals for an ageing population can be tackled by a consumer-led approach to food product development. After a brief overview of the underlying concepts and practices, a detailed description is given of how this approach could be used in the design of Home Meal Replacements for senior households. This description includes also a comprehensive review of the major determinants of food preference and meal choice behavior in a later age. Finally, relevant implications are derived from the work presented and future trends in the technological development of foods for the ageing highlighted.
Perceptions regarding strategic and structural entry barriers
Lutz, C.H.M. ; Kemp, R.G.M. ; Dijkstra, S.G. - \ 2010
Small Business Economics 35 (2010)1. - ISSN 0921-898X - p. 19 - 33.
conjoint-analysis - incumbent firms - switching costs - deterrence - entrepreneurship - markets - investment - economies - consumer - capacity
This article uses factor analysis to identify the underlying dimensions of strategic and structural entry barriers. We find that, in the perception of firms, both types of barriers are important and that the effectiveness of strategic barriers depends on attributes of the market structure. Based on the seven generic factors, a conjoint analysis is carried out to identify the most important factors perceived by firms. The conjoint analysis shows that in particular the barriers rooted in three underlying dimensions require attention of market authorities as they may prevent new entrants from entry: capital, access to distribution channels and strategic action. Remarkably, government rules and regulations, product differentiation, research and development (R&D) and advertising constitute minor entry problems according to firms
When demand accelerates demand: Trailing the bandwagon
Herpen, E. van; Pieters, F.G.M. ; Zeelenberg, M. - \ 2009
Journal of Consumer Psychology 19 (2009)3. - ISSN 1057-7408 - p. 302 - 312.
social-influence - herd behavior - consumer - product - scarcity - need - self - restrictions - information - conformity
Consumers generally prefer scarce products, which has been related to their exclusiveness. Currently scarce products, however, are not necessarily exclusive, but could be scarce because many other consumers previously bought them. We propose that consumers also prefer scarce products in this situation, which an appeal to uniqueness cannot explain. Three experiments support our predictions and reveal that scarcity effects even occur when consumers only see traces of others' behavior through emptied shelf space. Furthermore, this bandwagon effect disappears when uniqueness is threatened due to others in close spatial distance. .
A comparison of Dutch family doctors' and patients' perspectives on nutrition communication
Dillen, S.M.E. van; Hiddink, G.J. - \ 2008
Family Practice 25 (2008)S1. - ISSN 0263-2136 - p. i87 - i92.
primary-care physicians - awareness - consumer - guidance - information - education - barriers - styles - adults - health
Background. In recent years, we have investigated both patients' and family doctors' communicative characteristics towards nutrition communication in general practice with several qualitative and quantitative studies. A sound comparison of the survey results between both conversation partners has not been made before. Objective. The aim of the present study was to put together data obtained by earlier studies for the first time in order to make comparisons of patients' and family doctors' communicative characteristics regarding nutrition communication. Methods. In The Netherlands, 603 patients completed a face-to-face interview-assisted questionnaire (65% response rate) and 267 family doctors completed a questionnaire (45% response rate). Results. When comparing communicative characteristics, patients stronger believed that nutrition was an influence on health than family doctors. They also attributed a greater role to personal hygiene, stress and heredity, while family doctors were more convinced of the role of alcohol use and smoking on health. Patients more often rated their own nutrition knowledge as good than family doctors. In contrast, family doctors showed higher interest in nutrition and nutrition information than patients. As a result, a collinear model for family doctors and nutrition communication towards patients was provided. Conclusions. Significant differences between patients and family doctors were found for several communicative characteristics towards nutrition communication. It is important that family doctors become convinced that patients perceive them as a reliable and expert source of nutrition information. It is recommended that family doctors raise nutrition awareness among patients. Finally, we advise family doctors to pay attention to nutrition communication styles.
Food-Safety Practices in the Domestic Kitchen: Demographic, Personality, and Experiential Determinants
Fischer, A.R.H. ; Frewer, L.J. - \ 2008
Journal of Applied Social Psychology 38 (2008)11. - ISSN 0021-9029 - p. 2859 - 2884.
planned behavior - ecological behavior - handling practices - past behavior - health-locus - consumer - risk - perceptions - consumption - knowledge
The impact of consumer behavior in determining the safety of foods prepared at home has focused so far on the role of isolated consumer practices. In addition, demographic factors have been applied primarily to explain differences between individuals. In this paper, the use of psychological factors to predict scores on the integrated food-safety score is advocated. In order to assess the relevance of psychological constructs to food-safety behaviors, several relations are tested at the same time in a structural equation model in which it is demonstrated that the inclusion of psychological determinants leads to a better model for the prediction of food-related behaviors in comparison to demographic factors alone.
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