@article{LorenzWaltherLangenGoebeletal.2019, author = {Lorenz-Walther, Bettina A. and Langen, Nina and G{\"o}bel, Christine and Engelmann, Tobias and Bienge, Katrin and Speck, Melanie and Teitscheid, Petra}, title = {What makes people leave LESS food? Testing effects of smaller portions and information in a behavioral model.}, series = {Appetite}, volume = {139}, journal = {Appetite}, doi = {10.1016/j.appet.2019.03.026}, pages = {127 -- 144}, year = {2019}, abstract = {To contribute to a better understanding of consumer food leftovers and to facilitate their reduction in out-of-home settings, our study analyzes the effects of two common intervention strategies for reducing leftovers in a holistic behavioral model. Based on a quasi-experimental baseline-intervention design, we analyzed how the display of information posters and the reduction of portion sizes take an effect on personal, social and environmental determinants in a structural equation model. Applying data from online surveys and observations among 880 guests (503 baseline, 377 intervention) during two weeks in a university canteen, the suggested model allows to assign effects from the two interventions on plate leftovers to specific changes in behavioral determinants. Portion size reductions for target dishes are found to relate to lower levels of plate waste based on conscious perception, represented in smaller portion size ratings. Effects from seeing information posters are found to base on changed personal attitudes, subjective norms and perceived behavioral control. However, depending on how an individual reacts to the information (by only making an effort to finish all food or by making an effort and additionally choosing a different dish in the canteen) there are opposite effects on these determinants and consequently also on plate leftovers. Overall, the differentiated results on intervention effects strongly support the benefits of more holistic and in-depth analyses of interventions to reduce plate leftovers and therefore to contribute to more sustainable food consumption in out-of-home settings.}, language = {en} } @misc{TeitscheidTheres2012, author = {Teitscheid, Petra and Theres, Kirsch}, title = {Umsetzung einer nachhaltigen Rohstoffbeschaffung in der Ern{\"a}hrungswirtschaft, Beitrag im Rahmen des Ideenwettbewerbs "Nachhaltige Unternehmensf{\"u}hrung: Kosten kennen - Nutzen erschließen" des Rates f{\"u}r Nachhaltige Entwicklung im Institute for Advanced Sustainability, IASS, Potsdam}, year = {2012}, language = {en} } @article{LukasScheiperAnsorgeetal.2014, author = {Lukas, Melanie and Scheiper, Marie-Louise and Ansorge, Jannick and Rohn, Holger and Liedtke, Christa: and Teitscheid, Petra}, title = {The nutritional footprint - An assessment tool for health and environmental effects of nutrition}, series = {Ern{\"a}hrungs Umschau}, journal = {Ern{\"a}hrungs Umschau}, number = {11}, doi = {10.4455/eu.2014.028}, pages = {164 -- 170}, year = {2014}, language = {en} } @misc{BuchholzKirschTeitscheid2012, author = {Buchholz, Wolfgang and Kirsch, Therese and Teitscheid, Petra}, title = {Sustainable raw material procurement as an answer to the risk of supply in food industry, Leuphana Sustainability Summit, L{\"u}neburg 2012}, year = {2012}, language = {en} } @incollection{EngelmannSpeckRohnetal.2017, author = {Engelmann, Tobias and Speck, Melanie and Rohn, Holger and Bienge, Katrin and Langen, Nina and Howell, Eva and G{\"o}bel, Christine and Friedrich, Silke and Teitscheid, Petra and Liedtke, Christa}, title = {Sustainability assessment of out of-of-home meals: potentials and obstacles applying indicator sets NAHGAST Meal-Basis and NAHGAST Meal-Pro}, series = {Proceedings in System Dynamics and Innovation in Food Networks 2017}, booktitle = {Proceedings in System Dynamics and Innovation in Food Networks 2017}, doi = {10.18461/pfsd.2017.1735}, pages = {329 -- 338}, year = {2017}, language = {en} } @misc{Teitscheid2011, author = {Teitscheid, Petra}, title = {Resource productivity in higher education in the food and nutrition sector, World Resources Forum, Davos Schweiz, September 2011}, year = {2011}, language = {en} } @techreport{TeitscheidRohn2011, author = {Teitscheid, Petra and Rohn, Holger}, title = {Resource productivity for higher education in food and nutrition}, publisher = {FH M{\"u}nster}, doi = {10.25974/fhms-475}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-4751}, year = {2011}, abstract = {Sustainability is a central issue in food business and food retailing since approximately 3 years (See Teitscheid 2011). Various influential factors are significant for this development. On the one hand consumers choices are changing (See GFK et al. 2009). They are looking for natural, good and healthy food; they have a longing for home and an intact world (See iSuN 2010). The image of a highly efficient, but often ruthless industrial food production in regards to mankind and nature is not appropriate here. On the other hand, raw materials are scarce and, thus, very valuable. Bad harvests, mostly interpreted as a result of climate change, worldwide increasing consumption and the production of food in favor of energy production instead of nutritional aims, lead to a re-evaluation of agricultural resources and their producers. Within this context, food industry is searching for new forms of cooperation and partnership along the value chain in order to secure their resource basis. In the light of their significant environmental impact, an increasing number of companies also start to work on the environmental assessment and optimization of their products and value chains. Therefore they need employees with valid knowledge and competencies in sustainability and resources management. Based on this demand, the master's program "Sustainable Services and Nutrition Management" started in 2009 in the University of Applied Sciences in M{\"u}nster (Germany)1. This text reports about how the topic of resource efficiency in food/nutrition industry has been integrated within the study program, which projects have been worked on and what experience could be gained from them.}, subject = {Hochschulbildung}, language = {en} } @article{LangenOhlhausenSteinmeieretal.2022, author = {Langen, Nina and Ohlhausen, Pascal and Steinmeier, Fara and Friedrich, Silke and Engelmann, Tobias and Speck, Melanie and Damerau, Kerstin and Rohn, Holger and Teitscheid, Petra}, title = {Nudges for more sustainable food choices in the out-of-home catering sector applied in real-world labs}, series = {Resources, Conservation and Recycling}, journal = {Resources, Conservation and Recycling}, doi = {10.1016/j.resconrec.2022.106167}, year = {2022}, abstract = {Food production is responsible for approximately 17\% of Germany's greenhouse gas (GHG) emissions. After retail, out-of-home catering is the second largest food sales channel in Germany. A variety of means on both the supply and demand side are necessary to stimulate, facilitate and encourage a more sustainable development and minimise GHG emissions in this sector. Nudges are one of these. This paper's focus lies on the demand side. Set in real-world laboratories, we use a standardised empirical approach to compare different nudging interventions belonging to the area of physical environment and consumers' choice making process. We compare the effects of the same intervention across different settings and the effect of different, sequential nudging interventions in the same setting. Data was collected in eight workplace and school cafeterias in Germany over two project iterations (2016/2017; 2019/2020). A similar intervention design was applied. Comparability was assured by a harmonised menu. The first project iteration revealed that only one nudge (top menu position, +22.5\%) led to significant increases in sustainable food choices, while results from the second iteration showed that all nudge interventions (best counter position, +11.6\%; top menu position, +6,9\%; label plus information, +15.9\%) positively influenced consumer choice. Possible explanations such as the stricter compliance to the experimental design in the cafeterias but also societal developments such as the appearance of the Fridays for Future movement are discussed. As results vary between specific locations and settings, our findings suggest that nudges need to be adjusted to situational conditions for achieving highest efficacy.}, language = {en} } @article{TeitscheidLettenmeierGoebeletal.2012, author = {Teitscheid, Petra and Lettenmeier, Michael and G{\"o}bel, Christine and Liedtke, Christa and Rohn, Holger}, title = {Material Footprint of a sustainable nutrition system 2050 - Need for dynamic innovations in production, consumption and politics, 6 th International European Forum (Igls-Forum) on System Dynamics and Innovation in Food Networks February 13-17, 2012 - Innsbruck-Igls, Austria}, series = {Rickert U, Schiefer G: Proceedings in System Dynamics and Innovation in Food Networks 2012}, journal = {Rickert U, Schiefer G: Proceedings in System Dynamics and Innovation in Food Networks 2012}, issn = {2194-511X}, pages = {574 -- 583}, year = {2012}, language = {en} } @incollection{LangenBauskeDubraletal.2017, author = {Langen, Nina and Bauske, Emily and Dubral, Ricarda and G{\"o}bel, Christine and Speck, Melanie and Engelmann, Tobias and Rohn, Holger and Teitscheid, Petra}, title = {Interventions to Guide Consumers towards Sustainable Nutrition out-of-home - the Perspective of Caterers vs. Guests}, series = {Proceedings in System Dynamics and Innovation in Food Networks 2017}, booktitle = {Proceedings in System Dynamics and Innovation in Food Networks 2017}, pages = {339 -- 348}, year = {2017}, language = {en} }