安徽农业科学2024，Vol.52Issue(7)：192-195,4.DOI:10.3969/j.issn.0517-6611.2024.07.045
基于矿物元素结合化学计量学方法实现烟叶溯源
Geographical Identification of Tobacco Leaf Based on Inorganic Elements Combine Chemometrics Method
摘要
Abstract
[Objective]To establish the characteristic fingerprint of tobacco traceability by the determination of mineral elements in tobacco leaves combined with chemometrics method,and to verify the accuracy and reliability of the method.[Method]The contents of inorganic ele-ments in 25 tobacco leaf samples planted in soils from five different areas were analyzed by ICP-OES combined with microwave digestion meth-od.The data matrix was sequentially analyzed by one-way-ANOVA,principal component analysis and discriminant analysis.[Result]There were significant differences among tobacco leaves planted in different soils about the contents of mineral elements.The first two principal com-ponents obtained by principal component analysis could approximately reflect the information of original data,and realized the traceability of tobacco planted in soils from different regions by analyzing the mineral elements'contents.Fisher discriminant analysis and leave-one-out cross-validation test were performed to validate these results,ideal verification results were obtained,and the correct discrimination rate were 100%,respectively.[Conclusion]Based on the specific differences of inorganic elements could discriminate the geographical origins of tobacco.关键词
烟草/矿物元素/化学计量学/地理来源/主成分分析/判别分析Key words
Tobacco/Mineral element/Chemometrics/Geographical origin/Principal component analysis/Discriminant analysis分类
轻工纺织引用本文复制引用
苏赞,林涛,胡逸超,程新胜..基于矿物元素结合化学计量学方法实现烟叶溯源[J].安徽农业科学,2024,52(7):192-195,4.基金项目
广西中烟工业有限责任公司资助项目(2021450000340033). （2021450000340033）
