Analysis of Vegetable Oil from Different Suppliers by Chemometric Techniques to Ensure Correct Classification of Oil Sources to Deal with Counterfeiting

Godoy, Antônio Misson; Santos, Patrícia D. S.; Nakano, Ana Márcia Spanó; Bini, Rafael A.; Siepmann, David Antonio Brum; Schneider, Ricardo; Gaspar, Paulo Afonso; Pfrimer, Felipe Walter Dafico; Paz, Rosineide Fernando da; Santos, Oscar Oliveira

doi:10.1007/s12161-020-01731-5

Cited by 12 publications

(3 citation statements)

References 46 publications

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“…The chemometric strategies and methods for spectroscopy-based food authentication have been reviewed [17,18]. The common chemometric qualitative and classification non-supervised approaches include principal component analysis (PCA), cluster analysis (CA), or soft independent modeling of class analogy (SIMCA), while the supervised methods include partial least squares (PLS) with discriminant Analysis (PLSDA), linear discriminating analysis (LDA) and principal component regression (PCR) [19][20][21]. The chemometric algorithm used in PCA and PLS has been extensively used to obtain different quality parameters of edible oils [16,22,23] and applied to the evaluation of fatty acids composition and other quality parameters of virgin olive oil [4,24].…”

Section: Introductionmentioning

confidence: 99%

Attenuated Total Reflectance-Fourier Transform Infrared Spectroscopy (ATR-FTIR) Coupled with Chemometrics, to Control the Botanical Authenticity and Quality of Cold-Pressed Functional Oils Commercialized in Romania

et al. 2020

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Attenuated total reflectance-Fourier transform infrared ppectroscopy (ATR-FTIR) proved to be a reliable, rapid, and easy-to-use technique to evaluate vegetable oils quality and authenticity. The spectral range of the middle infrared region (MIR) of FTIR spectra, from 4000 to 600 cm−1, has been commonly used to fingerprint specific functional groups of lipids and their modified forms induced by oxidation of thermal treatment. The applicability of FTIR-MIR spectroscopy in assessing oil fingerprinting and quality parameters is crucially dependent on the chemometric methods, including calibrations with authentic samples. We report here the evaluation of seven types of cold-pressed functional oils (sunflower, pumpkin, hempseed, soybean, walnut, linseed, sea buckthorn) produced in Romania, provided directly from small enterprises (as genuine, process-controlled authentic samples) comparative to commercialized samples. Concomitantly, olive oils of similar claimed quality were investigated. The ATR-FTIR-MIR data were complemented by UV–Vis spectral fingerprints and multivariate analysis using Unscrambler X.10.4 and Metaboanalyst 4.0 software (e.g., PCA, PLSDA, cluster analysis, heatmap, Random forest analysis) and ANOVA post-hoc analysis using Fischer’s least significant difference. The integration of spectral and chemometric analysis proved to offer valuable criteria for their botanical group recognition, individual authenticity, and quality, easy to be applied for large cohorts of commercialized oils.

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Section: Introductionmentioning

confidence: 99%

Attenuated Total Reflectance-Fourier Transform Infrared Spectroscopy (ATR-FTIR) Coupled with Chemometrics, to Control the Botanical Authenticity and Quality of Cold-Pressed Functional Oils Commercialized in Romania

et al. 2020

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“…The color in VORW is usually related to the pigments in the oil sources. These vegetable pigments mainly comprise carotene molecules (Godoy et al 2020). Chemical otation was tested to evaluate its effectiveness in removing color from VORW.…”

Section: Color Removalmentioning

confidence: 99%

Contamination reduction of vegetable oil refinery wastewater using innovative acid and basic chemical flotation processes

Hartal,

Souabi,

Chatoui

et al. 2023

Preprint

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Vegetable oil refineries produce a large amount of wastewater, creating several environmental problems that threaten aquatic life. These wastewaters present significant challenges for treatment techniques due to their high and complex pollution characteristics. This study presents the application of flotation processes in acid medium or basic medium of vegetable oil refinery wastewater to reduce turbidity, oil, grease, chemical oxygen demand (COD), and phosphorus total, polyphenols, nitrates, phenolic compounds measured at 254 nm and color. Application of acid flotation reduced turbidity (96.9%), COD (79%), nitrate (97.8%), total phosphorus (99.8%), polyphenol (86.6%), absorbance at 254 nm (90.8%), oil and grease (98.5%) and color (96.6%). However, the application of basic flotation showed a reduction in turbidity (25.7%), COD (37.5%), nitrates (91.6%), total phosphorus (88%), polyphenols (66.3%), absorbance at 254 nm (64.7%), oil and grease (68.8%) and color (73.9%). Therefore, this flotation process in an acidic or basic medium can be considered among the most effective processes for reducing wastewater pollution from vegetable oil refineries.

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“…Different instrumental analytical techniques provide a large number of data variables, which not only offer the opportunity to mine useful chemical information from the original datasets, but also mean that it is difficult to interpret useful chemical information through univariate analysis [ 19 ]. Particularly for complex classification tasks such as the differentiation between edible oils from diverse biological or geographical sources, the analysis needs to be comprehensively examined using multivariate analysis to improve the accuracy of the classification [ 20 ].…”

Section: Introductionmentioning

confidence: 99%

Combination of fingerprint and chemometric analytical approaches to identify the geographical origin of Qinghai-Tibet plateau rapeseed oil

Ye,

Wang,

Gan

et al. 2024

Heliyon

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Analysis of Vegetable Oil from Different Suppliers by Chemometric Techniques to Ensure Correct Classification of Oil Sources to Deal with Counterfeiting

Cited by 12 publications

References 46 publications

Attenuated Total Reflectance-Fourier Transform Infrared Spectroscopy (ATR-FTIR) Coupled with Chemometrics, to Control the Botanical Authenticity and Quality of Cold-Pressed Functional Oils Commercialized in Romania

Attenuated Total Reflectance-Fourier Transform Infrared Spectroscopy (ATR-FTIR) Coupled with Chemometrics, to Control the Botanical Authenticity and Quality of Cold-Pressed Functional Oils Commercialized in Romania

Contamination reduction of vegetable oil refinery wastewater using innovative acid and basic chemical flotation processes

Combination of fingerprint and chemometric analytical approaches to identify the geographical origin of Qinghai-Tibet plateau rapeseed oil

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