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Published on: September 2, 2020
Geographical Origin Determination of Cigar at Different Spatial Scales Based on C and N Metabolites and Mineral
Yuping Wu1, Dequan Huang2,3, Guanghui Kong1
1Yunnan Academy of Tobacco Agricultural Science, Yunnan, 653100, Yuxi, China.
Abstract:
In this paper, five C and N metabolites and eighteen mineral elements were used to identify the cigar's geographical origin on a country scale (Dominica, Indonesia, and China) and on a prefecture scale (Yuxi, Puer, and Lincang in China). The results show that the best origin traceability method is the combination of C and N metabolites and mineral elements method. Its. Its accuracy of cross-validation can achieve 95% on a country scale and 94% on a prefecture scale. Determination accuracy is ranked as identification by combination > mineral elements > C and N metabolites. For geo-origin determination of cigars, mineral element identification is better than that metabolite identification. The algorithm and factors for origin determination are selected. The results can be used to guide cigar agricultural practices and monitor and regulate the cigar in production and circulation.
