Study On Food Safety Traceability System

There are a series of links and a lot of related hazards from food from production to consumption.Any elements of the hazards are likely to lead to serious food safety incident. According to food safetymanagement system, link and monitor the whole process information of food chain from production toconsumption is considered a viable program to achieve food "from farm to table" quality and safetymanagement. Food safety traceability system, which makes the core idea of food safety managementcome true, has an important significance to the achievement of food safety management.In this paper, food is chosen as research object, and food chain as the entry point. According to theprinciple of informationism, systematology and cybernetics, based on the theory of informationmanagement, information economics, food safety management, and reliability theory, it analyzes thehazards of food safety and the traceability elements of food safety, carry out the study of food safetyinformation transfer, construct the food safety information traceability chain and analysis its reliability,future more, discuss the function and construction method of food safety traceability system. The mainachievements of this paper are as follows:(1) A comparative study on domestic and international food safety traceability system. The papercompares the food safety management system between foreign countries and china from food safetyregulatory authorities and responsibilities, laws and regulations of food safety and implementation offood safety traceability system. Based the food safety system status of china, several experiences arepointed out from the foreign food safety traceability system for improving food safety managementsituation in our country.(2) A comprehensive analysis of food hazards and food quality safety elements. From three aspectsabout biological, chemical and physical, this thesis analyzes the hazards and quality safety elements infood production, processing, storage, transportation and consumption stages. The results of the analysislaid a foundation for the food whole production process control, food safety traceability elementsextraction.(3) Points out the restricting factors of the food safety information transfer. Talk over the potentiallimiting factors about food safety information transfer from production to consumption; list the foodsafety information asymmetry in five aspects because of the information transfer unblocked; analyzesthe asymmetric information on the impact of food safety issues.(4) Construct the model of food safety traceability chain. Study and establish the food safetytraceability chain hierarchical model based on the analysis of food chain, and analyzes the granularity,integrity and key identification about the food traceability chain. Build the fault tree of the foodtraceability chain and propose the structure function. Solve the fault tree for minimum cut set using themethod of qualitative analysis, and calculate the probability of occurrence in a fault tree using thequantitative analysis method. Figure out the structural importance, probability importance and keyimportance of food traceability chain fault tree by means of the quantitative analysis method. (5) Put forward the logic model of food safety traceability system and analysis the function, aim,executive object. Design the framework of the food safety traceability system, the structure of multipleplatform traceability. Present the key steps of establish the traceability system for organization; andintroduce the process of setting up food safety traceability system take the navel orange as examplebased on the angle of view of the food chain.