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To explore the feasibility of tracing the geographical origin of rice which influenced by mineral elements, ICP-MS is used to analyze the mineral content of rice samples from five areas: Fangzheng, Panjing, Wuchang, Yuanqu and Gongzhuling. The obtained sample data is traced to the geographical origin by the GSA-SVM algorithm. The result showed that the mineral content of rice samples from different regions had their own characteristics. The accuracy of the discrimination of the sample data in the five regions using the prediction model generated by the GSA-SVM algorithm is between 88.4615% ~ 98.0769%. Therefore, the mineral element analysis technology and GSA-SVM model can be used to identify the origin of rice, which provides a stable and efficient method for identifying and tracing the origin of rice.

Tracing the Geographical Origin of Rice Based on Mineral Elements and GSA-SVM