Abstract
In this work, a method was established for discriminating geographical origins of wheat flour based on energy dispersive X-ray fluorescence spectrometry (ED-XRF) and chemometrics. 68 wheat flour samples from three different origins were collected and analyzed using ED-XRF technology. Firstly, the principal component analysis method was applied to analyze the feasibility of discrimination and reduce data dimensionality. Then, Competitive Adaptive Reweighted Sampling (CARS) was used to further extract feature variables, and 12 energy variables (corresponding to mineral elements) were identified and selected to characterize the geographical attributes of wheat flour samples. Finally, a non-linear model was constructed using principal component analysis and quadratic discriminant analysis (QDA). The CARS-PCA-QDA model showed that the accuracy of five-fold cross-validation was 84.25%. The results showed that the established method was able to select important energy channel variables effectively and wheat flour could be classified based on geographical origins with chemometrics, which could provide a theoretical basis for unveiling the relationship between mineral element composition and wheat origin.
Funding source: Natural Science Foundation of Guangxi Province
Award Identifier / Grant number: 2021GXNSFBA075019
Funding source: Project of Improving the Basic Scientific Research Ability of Young and Middle-Aged College Teachers in Guangxi
Award Identifier / Grant number: 2021KY0352
Funding source: Taizhou 311 Project
Funding source: Doctoral Fund Project of Guangxi University of Science and Technology
Award Identifier / Grant number: 20Z34
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Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
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Research funding: This study was funded by the Doctoral Fund Project of Guangxi University of Science and Technology (20Z34), Guangxi Natural Science Foundation Project (2021GXNSFBA075019), the Project of Improving the Basic Scientific Research Ability of Young and Middle-aged College Teachers in Guangxi (2021KY0352) and the Taizhou 311 Project.
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Conflict of interest statement: The authors all have declared no conflict of interest.
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Articles in the same Issue
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- Changes in volatile organic compounds and lipid oxidation in traditional Chinese bacon during cold smoking
- Drying of pineapple slices using combined low-pressure superheated steam and vacuum drying
- An energy dispersive X-ray fluorescence spectrometry approach for the identification of geographical origin of wheat flour
- Study on quality change mechanism of green turnip slices during low pressure superheated steam drying based on sensitivity analysis method
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Articles in the same Issue
- Frontmatter
- Articles
- Orange juice ultrafiltration: characterisation of deposit layers and membrane surfaces after fouling and cleaning
- Changes in volatile organic compounds and lipid oxidation in traditional Chinese bacon during cold smoking
- Drying of pineapple slices using combined low-pressure superheated steam and vacuum drying
- An energy dispersive X-ray fluorescence spectrometry approach for the identification of geographical origin of wheat flour
- Study on quality change mechanism of green turnip slices during low pressure superheated steam drying based on sensitivity analysis method
- Aqueous enzymatic extraction of peanut oil body and protein and evaluation of its physicochemical and functional properties
- Effect of microwave, infrared, and convection hot-air on drying kinetics and quality properties of okra pods