Use of portable Raman spectroscopy in the quality control of extra virgin olive oil and adulterated compound oils

Barros, Iago H.A.S.; Paixão, Layla S.; Nascimento, Márcia H.C.; Lacerda, Valdemar; Filgueiras, Paulo R.; Romão, Wanderson

doi:10.1016/j.vibspec.2021.103299

Cited by 13 publications

(8 citation statements)

References 32 publications

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“…40 Barros et al further used portable Raman spectroscopy combined with PLS modeling for detecting soybean oil adulterated in EVOO. 41 The RMSEP is 1.9823 wt %, and the R 2 reaches 0.99. In a study by Mendes et al, they compared the analytical effects of near-, mid-infrared, and Raman spectroscopy combined with chemometrics to quantify soybean oil blended in EVOO.…”

Section: ■ Spectroscopic Fingerprinting Techniquesmentioning

confidence: 90%

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Recent Advances in Analytical Detection of Olive Oil Adulteration

Zhang

Sun

2021

ACS Food Sci. Technol.

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Olive oil is a popular food ingredient worldwide. Detecting economically motivated adulteration of olive oil is important to protect consumers’ interest. This review highlights the recent developments of analytical techniques in authentication and detecting adulteration of olive oils. The major characteristics and performances of chromatographic, spectroscopic, and other techniques were summarized. This work may provide a useful perspective toward future industrial applications for the quality assurance of olive oil.

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Section: ■ Spectroscopic Fingerprinting Techniquesmentioning

confidence: 90%

“…Compared to the traditional Raman spectroscopy, the CRFS with MLR involves simple sample preparation and fast analysis . Barros et al further used portable Raman spectroscopy combined with PLS modeling for detecting soybean oil adulterated in EVOO . The RMSEP is 1.9823 wt %, and the R 2 reaches 0.99.…”

Section: Spectroscopic Fingerprinting Techniquesmentioning

confidence: 99%

Recent Advances in Analytical Detection of Olive Oil Adulteration

Zhang

Sun

2021

ACS Food Sci. Technol.

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“…Following normalization, a multivariate data analysis named principal component analysis (PCA) is applied where eigenvalue decomposition of descriptive data covariance is performed to automatically analyse the Raman spectrum and highlight the spectral differences of the samples [36]. The relative intensities between 700-1800 cm −1 consist of some interesting characteristics for the oil samples, hence that range is utilized as the data source for PCA analysis.…”

Section: Principal Component Analysismentioning

confidence: 99%

Raman Spectroscopy Characterization of Mineral Oil and Palm Oil with Added Multi-Walled Carbon Nanotube for Application in Oil-Filled Transformers

et al. 2022

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This century is experiencing a generation of nanotechnologies that makes use of the remarkable properties of nanofluids in applications such as electrical systems, industrialization, and others. In this paper, mineral oil (MO) and palm oil (PO), with multi-walled carbon nanotube (CNT), have been synthesized for use in oil-filled transformer applications. This research aims to use Raman characterization to assess the feasibility of CNT nanofluids samples at 0.02 g/L and 0.03 g/L concentrations. The chemical structure bonding that exists in the Raman band between 700 cm−1 and 3100 cm−1 regions is identified and analyzed, accordingly. After baseline removal and normalization, the precision band location and intensity of oil samples are fitted with a Gaussian profile. It was discovered that the peak at ~1440 cm−1 has the highest intensity for six oil samples, which is attributed to the (C–H) methylene scissors vibration of the CH2 group. Based on the FWHM profile and integrated area under the curve of PO, it was discovered that CNT contributes to the structural stability defect of PO. Principal component analysis (PCA) is also used in this study to classify different samples based on chemical composition and identify the spectral characteristics with the highest degree of variability.

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“…First, the cost of the Raman instruments may be unaffordable for small‐ and medium‐sized producers, hampering the popularization of routine inspection for aquaculture. Despite many efforts in recent years to exploit miniaturized Raman devices for hazards inspection, some challenges remain in the stability, sensitivity, and resolution of these instruments (Barros et al., 2021; Beganovic et al., 2019; Y. Huang et al., 2020; Panneerselvam et al., 2017; Wang et al., 2021). Hence, accompanied by rapid developments in instrumentation technology, novel portable Raman spectrometers possessing excellent laser sources, optics, and detectors will be subjected to breakthroughs for on‐site determination of fish products and other food matrices.…”

Section: Challenges and Future Perspectivementioning

confidence: 99%

Recent advances in the application of Raman spectroscopy for fish quality and safety analysis

et al. 2022

Comp Rev Food Sci Food Safe

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Fish is one of the highly demanded aquatic products, and its quality and safety play a pivotal role in daily diet. However, the possible hazardous substance in perishable fish both in pre-and postharvest periods may decrease their values and pose a threat to public health. Laborious and expensive traditional methods drive the need of developing effective tools for detecting fish quality and safety properties in a rapid, nondestructive, and effective manner. Recent advances in Raman spectroscopy (RS) and surface-enhanced Raman scattering (SERS) have shown enormous potential in various aspects, which largely boost their applications in fish quality and safety evaluation. They have incomparable merits such as providing molecule fingerprint information and allowing for rapid, sensitive, and noninvasive detection with simple sample preparation. This review provides a comprehensive overview focusing on the applications of RS and SERS for fish quality assessment and safety inspection, highlighting the hazardous substance and illegal behavior both in preharvest (veterinary drug residues and environmental pollutants) and postharvest (freshness and illegal behavior) particularly. Moreover, challenges and prospects are also proposed to facilitate the vigorous development of RS and SERS. This review is aimed to emphasize potential opportunities for applying RS and SERS as promising techniques for routine food quality and safety detection.

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Use of portable Raman spectroscopy in the quality control of extra virgin olive oil and adulterated compound oils

Cited by 13 publications

References 32 publications

Recent Advances in Analytical Detection of Olive Oil Adulteration

Recent Advances in Analytical Detection of Olive Oil Adulteration

Raman Spectroscopy Characterization of Mineral Oil and Palm Oil with Added Multi-Walled Carbon Nanotube for Application in Oil-Filled Transformers

Recent advances in the application of Raman spectroscopy for fish quality and safety analysis

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