@article{WeiheBoennhofRitteretal.2011,
  author    = {Weihe, Felizitas and B{\"o}nnhof, Nora and Ritter, Guido and Eissing, G{\"u}nter},
  title     = {N{\"a}hrstoffverluste im Warmhalte­system der Schulverpflegung-Eine Metaanalyse},
  year      = {2011},
  abstract  = {"Die Warmhaltezeit zubereiteter Speisen ist zu mi­nimieren, m{\"o}glichst auf maximal 30 Minuten. Eine Warmhaltezeit von {\"u}ber drei Stunden ist inakzepta­bel" (DGE 2009). Derartige Empfehlungen sprechen die Deutsche Gesellschaft f{\"u}r Ern{\"a}hrung (2009), der aid infodienst (2010), die Verbraucherzentrale Nord­ rhein­Westfalen (2010) und andere Institutionen zum Warmhalten von Speisen in der Gemeinschaftsver­pflegung aus. Ihre Begr{\"u}ndung liegt in den ern{\"a}h­rungsphysiologischen, sensorischen und gegebenen­falls sogar hygienischen Einbußen der Speisenquali­t{\"a}t. Die Realit{\"a}t sieht in der Regel jedoch anders aus. Insgesamt gestattet die vorhandene Datenlage keine fundierte Beurteilung, ob das Warmhaltesystem eine Schulverpflegung von ausreichender ern{\"a}hrungsphysiologischer Qualit{\"a}t erm{\"o}glicht. Die empfohlenen Warmhaltezeiten werden in der Praxis h{\"a}ufig {\"u}berschritten, was zumindest die sensorische Qualit{\"a}t, aber auch den N{\"a}hrstofferhalt beeinflussen d{\"u}rfte. Daher sind neue und weiterf{\"u}hrende Untersuchungen der Speisequalit{\"a}t im Warmhaltesystem dringend geboten.},
  language  = {de}
}
@article{Teitscheid1994,
  author    = {Teitscheid, Petra},
  title     = {{\"O}kologische Kommunikation im Warenhaus},
  series = {Informationen zur beruflichen Umweltbildung},
  journal   = {Informationen zur beruflichen Umweltbildung},
  number    = {3-4},
  year      = {1994},
  language  = {de}
}
@article{Teitscheid2009,
  author    = {Teitscheid, Petra},
  title     = {Ver{\"a}nderungen nachhaltig und erfolgreich umsetzen - Werkzeuge des Projektmanagements f{\"u}r die Gestaltung des Schulbistros},
  series = {Haushalt \& Bildung},
  journal   = {Haushalt \& Bildung},
  number    = {3 / September 09},
  pages     = {48 -- 57},
  year      = {2009},
  language  = {de}
}
@article{SanderRitter2010,
  author    = {Sander, Thorsten and Ritter, Guido},
  title     = {Projekt SenseBase - Sinnlicher Koffer},
  series = {DLG-Lebensmittel},
  volume    = {4},
  journal   = {DLG-Lebensmittel},
  number    = {1},
  pages     = {16 -- 17},
  year      = {2010},
  language  = {mul}
}
@article{KreyenschmidtAlbrechtBraunetal.2013,
  author    = {Kreyenschmidt, Judith and Albrecht, Antonia and Braun, Carina and Herbert, Ulrike and Mack, Miriam and Rossaint, Sonja and Ritter, Guido and Teitscheid, Petra and Ilg, Yvonne},
  title     = {Food Waste in der fleischverarbeitenden Kette},
  series = {FleischWirtschaft},
  journal   = {FleischWirtschaft},
  number    = {10},
  pages     = {57 -- 63},
  year      = {2013},
  language  = {de}
}
@article{RitterSander2013,
  author    = {Ritter, Guido and Sander, Thorsten},
  title     = {Mit allen Sinnen - Sensorik eine interdisziplin{\"a}re Wissenschaft},
  series = {GIT- Labor-Fachzeitschrift},
  journal   = {GIT- Labor-Fachzeitschrift},
  number    = {10},
  pages     = {646 -- 648},
  year      = {2013},
  language  = {mul}
}
@article{GoebelFriedrichRitteretal.2013,
  author    = {G{\"o}bel, Christine and Friedrich, Silke and Ritter, Guido and Teitscheid, Petra and Wetter, Christof and Hafner, Gerold and Barabosz, Jakob and Leverenz, Dominik and Maurer, Claudia and Kr, Martin},
  title     = {Analyse, Bewertung und Optimierung von Systemen zur Lebensmittelbewirtschaftung},
  series = {M{\"u}ll und Abfall},
  journal   = {M{\"u}ll und Abfall},
  number    = {11},
  pages     = {601 -- 610},
  year      = {2013},
  language  = {de}
}
@article{Ritter2013,
  author    = {Ritter, Guido},
  title     = {Sensorik - eine Wissenschaft im Aufbruch, Interview mit Prof. Ritter},
  series = {Ern{\"a}hrungsumschau},
  journal   = {Ern{\"a}hrungsumschau},
  number    = {7},
  pages     = {406 -- 409},
  year      = {2013},
  language  = {de}
}
@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}
}
@article{StrotmannNiepagenkemperGoebeletal.2017,
  author    = {Strotmann, Christina and Niepagenkemper, Linda and G{\"o}bel, Christine and Fl{\"u}gge, Fara and Friedrich, Silke and Kreyenschmidt, Judith and Ritter, Guido},
  title     = {Improving Transfer in the Food Sector by Applying a Target Audience-Centered Approach—The Development of a Nonprofit Marketing Campaign Guide Based on a Case Study of the LAV Platform 9(4)},
  series = {Sustainability},
  volume    = {9},
  journal   = {Sustainability},
  number    = {4},
  issn      = {2071-1050},
  doi       = {10.3390/su9040512},
  pages     = {512 -- 537},
  year      = {2017},
  language  = {en}
}
@article{StrotmannGoebelFriedrichetal.2017,
  author    = {Strotmann, Christina and G{\"o}bel, Christine and Friedrich, Silke and Kreyenschmidt, Judith and Ritter, Guido and Teitscheid, Petra},
  title     = {A Participatory Approach to Minimizing Food Waste in the Food Industry—A Manual for Managers},
  series = {Sustainability 9(1):66},
  journal   = {Sustainability 9(1):66},
  issn      = {2071-1050},
  doi       = {10.3390/su9010066},
  year      = {2017},
  language  = {en}
}
@article{WeberStrotmannRitter2019,
  author    = {Weber, Ricarda and Strotmann, Christina and Ritter, Guido},
  title     = {Adressatenspezifische Kommunikationskonzepte zur Lebensmittelabfallreduktion in deutschen Privathaushalten},
  series = {{\"O}sterreichische Wasser- und Abfallwirtschaft},
  journal   = {{\"O}sterreichische Wasser- und Abfallwirtschaft},
  publisher = {Springer Vienna},
  issn      = {1613-7566},
  doi       = {10.1007/s00506-019-0579-8},
  pages     = {1 -- 17},
  year      = {2019},
  abstract  = {Die Verschwendung von Ressourcen ist ein Symptom unserer heutigen {\"U}berflussgesellschaft und manifestiert sich unter anderem in großen Mengen an Lebensmittelabf{\"a}llen und -verlusten. Diese entstehen tagt{\"a}glich {\"u}ber alle Stufen von Lebensmittelwertsch{\"o}pfungsketten, wobei in Industriel{\"a}ndern insbesondere Privathaushalte negativ hervorstechen. Gleichzeitig weisen Privathaushalte das gr{\"o}ßte Vermeidungspotenzial auf. Das Ziel der vorliegenden Arbeit ist, einen Beitrag zur Aussch{\"o}pfung dieses Potenzials zu leisten, indem Empfehlungen f{\"u}r eine zielgruppenorientierte Kommunikation zur Lebensmittelabfallreduktion hergeleitet werden. Eine quantitative Onlinebefragung (n = 801), die hinsichtlich Alters- und Geschlechterverteilung repr{\"a}sentativ f{\"u}r die deutsche Bev{\"o}lkerung ist, wurde im Sommer 2018 durchgef{\"u}hrt. Basierend auf einer systematischen Literaturrecherche wurden Gr{\"u}nde f{\"u}r das Entstehen von Lebensmittelabf{\"a}llen in Privathaushalten ermittelt und mit Items zu Kommunikationspr{\"a}ferenzen kombiniert abgefragt. Mittels Faktorenanalyse und anschließender hierarchischer Clusteranalyse wurden sechs Konsumentensegmente identifiziert, die sich hinsichtlich ihres Verhaltens, Einstellung und Wissens bezogen auf Lebensmittelabf{\"a}lle unterscheiden. Die Cluster wurden anhand demografischer Variablen sowie ihrer Kommunikationspr{\"a}ferenzen charakterisiert. Das Resultat der vorliegenden Arbeit sind konkrete Empfehlungen zur zielgruppenorientierten Kommunikation in Bezug auf Lebensmittelabfallreduktionsmaßnahmen. Die statistisch signifikanten Gruppenunterschiede hinsichtlich der Faktoren f{\"u}r das Entstehen von Lebensmittelabf{\"a}llen unterstreichen den Bedarf der Zielgruppenorientierung, um effektive Maßnahmen zu entwickeln, die schlussendlich einen Beitrag zu einer nachhaltigen Entwicklung leisten. Forschungsbedarf wurde hinsichtlich einer pr{\"a}ziseren Charakterisierung der Konsumentensegmente bez{\"u}glich ihrer Kommunikationspr{\"a}ferenzen festgestellt.},
  language  = {de}
}
@article{LangenOhlhausenFriedrichetal.2018,
  author    = {Langen, Nina and Ohlhausen, P. and Friedrich, Silke and G{\"o}bel, Christine and Teitscheid, Petra and Engelmann, Tobias and Rohn, H. and Bienge, K. and Speck, M.},
  title     = {Auf der Suche nach dem wirksamsten Nudge zur Absatzsteigerung nachhaltiger Speisen in der Außer-Haus-Gastronomie},
  series = {Vierteljahrshefte zur Wirtschaftsforschung},
  volume    = {87. Jahrgang},
  journal   = {Vierteljahrshefte zur Wirtschaftsforschung},
  issn      = {0340-1707},
  doi       = {10.3790/vjh.87.2.95},
  pages     = {95 -- 108},
  year      = {2018},
  language  = {de}
}
@article{WeberRitter2018,
  author    = {Weber, Ricarda and Ritter, Guido},
  title     = {3D-Druck von Lebensmitteln Chancen und Hindernisse einer innovativen Technologie f{\"u}r die Ern{\"a}hrungsbranche},
  series = {Ern{\"a}hrungsumschau},
  journal   = {Ern{\"a}hrungsumschau},
  number    = {11},
  issn      = {0174-0008},
  doi       = {10.4455/eu.2018.045},
  pages     = {M626 -- M632},
  year      = {2018},
  language  = {de}
}
@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}
}
@article{StrotmannFriedrichKreyenschmidtetal.2017,
  author    = {Strotmann, C. and Friedrich, S. and Kreyenschmidt, J. and Teitscheid, P. and Ritter, G.},
  title     = {Comparing Food Provided and Wasted before and after Implementing Measures against Food Waste in Three Healthcare Food Service Facilities},
  series = {Sustainability},
  volume    = {9},
  journal   = {Sustainability},
  number    = {8},
  issn      = {2071-1050},
  doi       = {10.3390/su9081409},
  pages     = {1409},
  year      = {2017},
  language  = {en}
}
@article{SpeckWagnerBuchbornetal.2022,
  author    = {Speck, Melanie and Wagner, Lynn and Buchborn, Felix and Steinmeier, Fara and Friedrich, Silke and Langen, Nina},
  title     = {How public catering accelerates sustainability: a German case study},
  series = {Sustainability Science},
  journal   = {Sustainability Science},
  doi       = {10.1007/s11625-022-01183-2},
  year      = {2022},
  abstract  = {Public catering has become increasingly important in recent years. With increasing annual customers, the sector's impact on the environment is also growing continuously. At the same time, public catering offers a lever to promote sustainable nutrition that has rarely been used so far. Small changes in kitchen practices and food offers can thus be multiplied into a significant positive impact on environmental challenges, such as climate change or loss of biodiversity due to the large number of servings. In contrast to private households, management decisions in public catering can influence the food- related environmental impact of thousands of customers. This article deals with the nationwide level of greenhouse gas (GHG) emissions and resource use in the German public catering segment "business" and its saving potentials by different scenarios of unsupported and supported recipe revision. In this paper, we define "unsupported" as the intuitive optimization of recipes by employees of public catering businesses. In contrast, "supported" approaches had to meet specific target goals, for example of the Deutsche Gesellschaft f{\"u}r Ern{\"a}hrung; engl. German Nutrition Society or the sustainable level. Specifically, we will test how (A) an unsupported recipe revision, (B) a recipe revision based on dietary recommendations and (C) a recipe revision using scientific guidance affect the environmental impact of a dish. As a methodological framework, an online survey of public catering companies was conducted as well as a scenario analysis at menu level and at nationwide level. The results are based on empirical data on the one hand, and on extrapolations on the other. The results show that the nationwide implementation of recipe revision according to scientific guidance—such as concrete target goals for the GHG emissions per serving—can save up to 44\% of resource use in the German business catering sector (which corresponds to 3.4 million tons of resources per year) and as much as 40\% of GHG emissions (0.6 tons GHG emissions per year). Even in the scenario of unsupported recipe revision, GHG and resource savings of up to 20\% can be realized. The results show that public catering can reduce its material and carbon footprint by 20\% overnight. Moreover, the findings show indications for the sustainable transformation of public catering. Nevertheless, it must be noted that these are some first steps of the transformation, which will require further changes with even greater impacts and political activities.},
  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{StrotmannMaleforsCallewaertetal.2019,
  author    = {Strotmann, Christina and Malefors, Christopher and Callewaert, Pieter and Hansson, Per-Anders and Hartikainen, Hanna and Pietil{\"a}inen, Oona and Strid, Ingrid and Eriksson, Mattias},
  title     = {Towards a Baseline for Food-Waste Quantification in the Hospitality Sector—Quantities and Data Processing Criteria},
  series = {Sustainability},
  volume    = {2019},
  journal   = {Sustainability},
  number    = {11(13)},
  doi       = {https://doi.org/10.3390/su11133541},
  year      = {2019},
  language  = {en}
}
@article{StrotmannFriedrichKreyenschmidtetal.2017,
  author    = {Strotmann, Christina and Friedrich, Silke and Kreyenschmidt, Judith and Teitscheid, Petra and Ritter, Guido},
  title     = {Comparing Food Provided and Wasted before and after Implementing Measures against Food Waste in Three Healthcare Food Service Facilities},
  series = {Sustainability},
  volume    = {2017},
  journal   = {Sustainability},
  number    = {9(8)},
  doi       = {https://doi.org/10.3390/su9081409},
  pages     = {1409},
  year      = {2017},
  language  = {de}
}