Rapid and Green Method Forensic Authentication of Rice Using Near-Infrared Spectroscopy (NIRS)

Francisco S Panero,Pedro S Panero,Anselmo F R Rodriguez,João S Panero,Fernando S E D V Faria

doi:10.5539/jas.v12n7p105

Francisco S Panero, Pedro S Panero + Show 3 more

Open Access

https://doi.org/10.5539/jas.v12n7p105

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Abstract

Rice is one of the most consumed cereals in the world. Currently, techniques for the authentication and geographical origin of rice is known not to be objective because to depend on the naked eye of a well-trained inspector. DNA fingerprint methods have been shown to be inappropriate for on-site application because the method needs a lot of labor and skilled expertise. Rice consumers want to confirm cultivation origin because they believe price or eating score has a high correlation according to them. Considering rice as a raw material of economic and social value and the recent use of NIR spectroscopy coupled with chemometric methods to authentication and discrimination of geographical origin as an alternative to classical methods in the search for a methodology in line with Green Chemistry, this work investigates the potential of NIR spectroscopy combined with multivariate analysis: PCA (Principal Component Analysis) and HCA (Hierarchical Cluster Analysis) for rapid and non-destructive forensic authentication of rice grains from Brazil and Venezuela. This study investigated the potential of near-infrared spectroscopy, combined with PCA and HCA chemometric technique to the authenticity of rice. It was verified that is feasible and advantageous to implement authenticity detection of different brands, typology and geographical discrimination (Brazil and Venezuela) rice.

Highlights

Nowadays, scientists are seeking to develop methodologies that do not harm the environment
Green Chemistry refers to the use of a set of principles that prioritize the reduction or elimination of the use or generation of hazardous substances in the design, manufacture, and application of chemicals (Anastas & Warner, 1998)
Considering rice as a raw material of economic and social value and the recent use of near-infrared spectroscopy (NIR) spectroscopy coupled with chemometric methods to authentication and discrimination of geographical origin as an alternative to classical methods in the search for a methodology in line with Green Chemistry, this work investigates the potential of NIR spectroscopy combined with multivariate analysis: PCA (Principal Component Analysis) and HCA (Hierarchical Cluster Analysis) for rapid and non-destructive forensic authentication of rice grains from Brazil and Venezuela

Summary

Introduction

Scientists are seeking to develop methodologies that do not harm the environment. Green Chemistry refers to the use of a set of principles that prioritize the reduction or elimination of the use or generation of hazardous substances in the design, manufacture, and application of chemicals (Anastas & Warner, 1998). Anastas and Warner (1998) proposed 12 complementary principles to maximize resource efficiency and minimize environmental and human health risks. The principles are as follows (American Chemical Society, 2018): (1) Prevention. Vol 12, No 7; 2020 analytical methods used in green chemistry are an important trend in analytical chemistry because of sustainable development that is useful for society. The majority of analytical methods and techniques used for authentication and discrimination of geographical origin of food products are destructive, slow and generate waste to the environment (Gliszczyńska-Świgło & Chmielewski, 2017)

Near Infrared Spectroscopy

Samples and Studied Area

Acquisition of Spectral and Chemometrics Data Treatment

NIR spectra

Statistics and Data Analysis

Discussion