Waldhans, Claudia: Assessment of intelligent packaging systems to improve resource efficiency along the supply chain of fresh produce. - Bonn, 2025. - Dissertation, Rheinische Friedrich-Wilhelms-Universität Bonn.
Online-Ausgabe in bonndoc: https://nbn-resolving.org/urn:nbn:de:hbz:5-81266
Online-Ausgabe in bonndoc: https://nbn-resolving.org/urn:nbn:de:hbz:5-81266
@phdthesis{handle:20.500.11811/12857,
urn: https://nbn-resolving.org/urn:nbn:de:hbz:5-81266,
author = {{Claudia Waldhans}},
title = {Assessment of intelligent packaging systems to improve resource efficiency along the supply chain of fresh produce},
school = {Rheinische Friedrich-Wilhelms-Universität Bonn},
year = 2025,
month = feb,
note = {The aim of this thesis was the assessment of intelligent packaging systems along different supply chains of fresh produce and their contribution to improve resource efficiency. As part of the work, a novel method was used for the read-out of intelligent packaging systems, in particular time–temperature–indicators (TTI), for testing and evaluation. First, an app-based system for the color read-out of TTIs was developed and investigated considering various technical and environmental parameters under laboratory conditions. By means of a survey of different food chain stakeholders, the status quo regarding the use of temperature monitoring systems including intelligent systems and data management systems was gathered. In pilot studies, the application of the app-based TTI-read-out system for both temperature monitoring along different supply chains (Business-to-Business and Business-to-Consumer) and shelf life prediction of raw pork sausage and ready-to-eat salad was validated. The results revealed that reading out TTI discoloration and developing a TTI shelf life model are generally possible using the newly developed app. After calculating corrected color values under the consideration of different influencing parameters, the results of TTI read-outs were comparable to that of a conventional colorimeter. Pilot studies revealed that the newly developed app-based read-out system is generally able to monitor temperature conditions along different supply chains and to indicate temperature variations. In the shelf life studies, the system is also found suitable to generally reflect spoilage kinetics of selected products adequately by the discoloration kinetics based on app measurements. The comparison of measured and predicted color values revealed a high accordance. However, under practical conditions, environmental influences in real supply chains affect the temperature monitoring and shelf life prediction by the app, and further optimizations are necessary. The study results serve as proof of concept for the app-based application of intelligent packaging systems. Although the survey revealed that the use of intelligent systems is still not widespread, the developed system is a suitable tool for continuous temperature monitoring and product-accompanying control for the simple determination of the shelf life throughout the supply chain. By providing further information, they have a high potential to save valuable resources along the food supply chain.},
url = {https://hdl.handle.net/20.500.11811/12857}
}
urn: https://nbn-resolving.org/urn:nbn:de:hbz:5-81266,
author = {{Claudia Waldhans}},
title = {Assessment of intelligent packaging systems to improve resource efficiency along the supply chain of fresh produce},
school = {Rheinische Friedrich-Wilhelms-Universität Bonn},
year = 2025,
month = feb,
note = {The aim of this thesis was the assessment of intelligent packaging systems along different supply chains of fresh produce and their contribution to improve resource efficiency. As part of the work, a novel method was used for the read-out of intelligent packaging systems, in particular time–temperature–indicators (TTI), for testing and evaluation. First, an app-based system for the color read-out of TTIs was developed and investigated considering various technical and environmental parameters under laboratory conditions. By means of a survey of different food chain stakeholders, the status quo regarding the use of temperature monitoring systems including intelligent systems and data management systems was gathered. In pilot studies, the application of the app-based TTI-read-out system for both temperature monitoring along different supply chains (Business-to-Business and Business-to-Consumer) and shelf life prediction of raw pork sausage and ready-to-eat salad was validated. The results revealed that reading out TTI discoloration and developing a TTI shelf life model are generally possible using the newly developed app. After calculating corrected color values under the consideration of different influencing parameters, the results of TTI read-outs were comparable to that of a conventional colorimeter. Pilot studies revealed that the newly developed app-based read-out system is generally able to monitor temperature conditions along different supply chains and to indicate temperature variations. In the shelf life studies, the system is also found suitable to generally reflect spoilage kinetics of selected products adequately by the discoloration kinetics based on app measurements. The comparison of measured and predicted color values revealed a high accordance. However, under practical conditions, environmental influences in real supply chains affect the temperature monitoring and shelf life prediction by the app, and further optimizations are necessary. The study results serve as proof of concept for the app-based application of intelligent packaging systems. Although the survey revealed that the use of intelligent systems is still not widespread, the developed system is a suitable tool for continuous temperature monitoring and product-accompanying control for the simple determination of the shelf life throughout the supply chain. By providing further information, they have a high potential to save valuable resources along the food supply chain.},
url = {https://hdl.handle.net/20.500.11811/12857}
}