White Crystal Cane Sugar Analysis Using a Noninvasive Method for Detection of Tampering with Sand

Author(s)

Nascimento, Paloma Andrade Martins ^[1] ; Speranca, Marco Aurelio ^[1] ; Romano Beletti, Douglas ^{[2, 3]} ; Pereira-Filho, Edenir Rodrigues ^[2] ; Pereira, Fabiola Manhas Verbi ^{[4, 1]}

Affiliation

^[1] Sao Paulo State Univ UNESP, Bioenergy Res Inst IPBEN, Inst Chem, Grp Alternat Analyt Approaches GAAA, BR-14800060 Araraquara, SP - Brazil

^[2] Fed Univ Sao Carlos UFSCar, Dept Chem, Grp Appl Instrumental Anal GAIA, POB 676, BR-13560270 Sao Carlos, SP - Brazil

^[3] CETEC Lab Instruments, BR-17023027 Ribeirao Preto, SP - Brazil

^[4] Natl Inst Alternat Technol Detect Toxicol Assessm, BR-14800060 Araraquara, SP - Brazil

• Document type: Journal article
• Source: FOOD ANALYTICAL METHODS; v. 14, n. 7, p. 1438-1442, JUL 2021.
• Web of Science Citations: 0

Abstract

In this study, a noninvasive and highly analytical frequency method for the detection of tampering with sand (SA) of white crystal cane sugar (WCCS) was developed using energy-dispersive X-ray fluorescence (EDXRF) combined with chemometric strategies. Sixty-four solid mixture samples with variations in the content of sand were evaluated. The normalization strategy to the unit length (||b||) in combination with summed spectral data from EDXRF was applied as a strategy to enhance analytical information. The predicted data using a partial least squares (PLS) model were highly correlated with reference values (R-2 = 0.9889), and the standard error of cross-validation (SECV) was 2.7 wt% using two latent variables (LV) corresponding to 97% of the explained variance of the data. (AU)

• FAPESP's process: 19/01102-8 - Multi-user equipament approved in grant 2018/18212-8: X-Ray Fluorescence spectrometer
• Grantee: Fabiola Manhas Verbi Pereira
• Support Opportunities: Multi-user Equipment Program
• FAPESP's process: 14/50945-4 - INCT 2014: National Institute for Alternative Technologies of Detection, Toxicological Evaluation and Removal of Micropollutants and Radioactivies
• Grantee: Maria Valnice Boldrin
• Support Opportunities: Research Projects - Thematic Grants
• FAPESP's process: 18/18212-8 - Development of chemometric models for determination of solid impurities in raw sugarcane using energy dispersive X-ray fluorescence
• Grantee: Fabiola Manhas Verbi Pereira
• Support Opportunities: Regular Research Grants
• FAPESP's process: 19/24223-5 - Calibration in Laser-Induced Breakdown Spectroscopy (LIBS): alternatives, challenges, proposals comparison and proposition of a universal procedure
• Grantee: Edenir Rodrigues Pereira Filho
• Support Opportunities: Regular Research Grants