Abstract
The frequent occurrence of food safety accidents at the global level has triggered consumer sensitivity. Establishing a food traceability system can effectively guarantee food safety and increase consumer confidence and satisfaction. Existing food traceability systems often ignore environmental factors that affect food quality at all stages of the supply chain, and the authenticity of the information obtained through traceability is difficult to guarantee. In this study, a food supply chain traceability model was established based on blockchain and radio frequency identification (RFID) technologies. The model focused on the traceability of environmental data during the various stages of the food supply chain and combined a centralized database and blockchain for data storage. The lot identification data of the various supply chain stages were stored in a centralized database, while the environmental data were stored in a blockchain. Thereby, the authenticity and accuracy of the traceability data were ensured. The blockchain part of the model has been simulated in the Ethereum test environment, and the experiment has achieved traceability of temperature data.
Highlights
In recent years, food safety accidents have occurred frequently [1] [2] [3]
The application programming interface (API) port provided by the sensor supplier was called to realize the automatic uploading of the sensor data to the blockchain
Blockchain technology is popular owing to its anti-tampering capabilities; its application in production and everyday life is difficult due to its inability to actively obtain external data
Summary
The white paper Food Security in China issued by the State Council of the People’s Republic of China highlights that “As food is essential to a nation’s prosperity and its people’s wellbeing, food security is a major prerequisite for national se-. Environmental factors, such as temperature and humidity, need to be strictly controlled throughout the many stages of the food supply chain. To minimize food safety issues, it is essential to collect data regarding the supply chain and control the environmental factors of the supply chain that may threaten food safety. It is necessary to establish a food traceability system whereby authentic, reliable traceability data are accessible and the food supply chain is more transparent to the consumer
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