Determination of the Geographic Origin of Rice by Chemometrics with Strontium and Lead Isotope Ratios and Multielement Concentrations
- 8 February 2012
- journal article
- research article
- Published by American Chemical Society (ACS) in Journal of Agricultural and Food Chemistry
- Vol. 60 (7), 1628-1634
- https://doi.org/10.1021/jf204296p
Abstract
The objective of this study was to develop a technique for determining the country of origin of rice in the Japanese market. The rice samples included a total of 350 products grown in Japan (n = 200), the United States (n = 50), China (n = 50), and Thailand (n = 50). In this study, 87Sr/86Sr and Pb isotope (204Pb, 206Pb, 207Pb, and 208Pb) ratios and multielement concentrations (Al, Fe, Co, Ni, Cu, Rb, Sr, and Ba) were determined by high-resolution inductively coupled plasma mass spectrometry. By combining three chemometric techniques based on different principles and determination criteria, the countries of origin of rice were determined. The predictions made by 10-fold cross-validation were around 97% accurate. The presented method demonstrated the effectiveness of determining the geographic origin of an agricultural product by combining several chemometric techniques using heavy element isotope ratios and multielement concentrations.Keywords
This publication has 28 references indexed in Scilit:
- Statistical Analysis of Rice Samples for Compositions of Multiple Light Elements (H, C, N, and O) and Their Stable IsotopesAnalytical Sciences, 2010
- Strontium isotopic signatures of natural mineral waters, the reference to a simple geological map and its potential for authentication of foodFood Chemistry, 2009
- Determination of Trace Elements in Wheat Flour by X-Ray Fluorescence Analysis and Its Application to Identification of Their Production AreaBUNSEKI KAGAKU, 2009
- High-Sensitive Determination of Inorganic Elements in Spinach Leaves by X-Ray Fluorescence Analysis and Its Application to Identification of Their Production AreaBUNSEKI KAGAKU, 2007
- Determination of the Geographic Origin of Onions between Three Main Production Areas in Japan and Other Countries by Mineral CompositionJournal of Agricultural and Food Chemistry, 2006
- Application of Multielement Stable Isotope Ratio Analysis to the Characterization of French, Italian, and Spanish CheesesJournal of Agricultural and Food Chemistry, 2004
- Application of Inorganic Element Ratios to Chemometrics for Determination of the Geographic Origin of Welsh OnionsJournal of Agricultural and Food Chemistry, 2004
- Chemical Profiling To Differentiate Geographic Growing Origins of CoffeeJournal of Agricultural and Food Chemistry, 2002
- Differentiation of Tea (Camellia sinensis) Varieties and Their Geographical Origin According to their Metal ContentJournal of Agricultural and Food Chemistry, 2001
- Use of SNIF-NMR and IRMS in combination with chemometric methods for the determination of chaptalisation and geographical origin of wines (the example of Slovenian wines)Analytica Chimica Acta, 2001