The detection and determination of adulterants in turmeric using fourier-transform infrared (FTIR) spectroscopy coupled to chemometric analysis and micro-FTIR imaging

Shannon, Maeve; Lafeuille, Jean-Louis; Frégière-Salomon, Aline; Lefevre, Stephane; Galvin-King, Pamela; Haughey, Simon A.; Burns, D. Thorburn; Shen, Xueqi; Kapil, Arun P; McGrath, Terence F.; Elliott, Christopher T.

doi:10.1016/j.foodcont.2022.109093

Cited by 23 publications

(4 citation statements)

References 11 publications

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“…The main structure of lignin was very similar to the characteristic band of the functional group. There was no significant change at 1273, 1081, 1046, or 878 cm −1 , and S. holocarpa (methanol) was also weakened at 2980 cm −1 of cellulose, indicating that cellulose lignin was extracted [ 37 ]. The latter part was hydrolyzed [ 38 ].…”

Section: Resultsmentioning

confidence: 99%

Incorporation of Nanocatalysts for the Production of Bio-Oil from Staphylea holocarpa Wood

Yang

et al. 2022

Polymers

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Biomass has been recognized as the most common source of renewable energy. In recent years, researchers have paved the way for a search for suitable biomass resources to replace traditional fossil fuel energy and provide high energy output. Although there are plenty of studies of biomass as good biomaterials, there is little detailed information about Staphylea holocarpa wood (S. holocarpa) as a potential bio-oil material. The purpose of this study is to explore the potential of S. holocarpa wood as a bio-oil. Nanocatalyst cobalt (II) oxide (Co3O4) and Nickel (II) oxide (NiO) were used to improve the production of bio-oil from S. holocarpa wood . The preparation of biofuels and the extraction of bioactive drugs were performed by the rapid gasification of nanocatalysts. The result indicated that the abundant chemical components detected in the S. holocarpa wood extract could be used in biomedicine, cosmetics, and biofuels, and have a broad industrial application prospect. In addition, nanocatalyst cobalt tetraoxide (Co3O4) could improve the catalytic cracking of S. holocarpa wood and generate more bioactive molecules at high temperature, which is conducive to the utilization and development of S. holocarpa wood as biomass. This is the first time that S. holocarpa wood was used in combination with nanocatalysts. In the future, nanocatalysts can be used to solve the problem of sustainable development of biological resources.

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Section: Resultsmentioning

confidence: 99%

Incorporation of Nanocatalysts for the Production of Bio-Oil from Staphylea holocarpa Wood

Yang

et al. 2022

Polymers

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“…The FT-IR technique was used to identify the absorption peaks of the functional groups of the samples, and enables fast and non-destructive identification of the contents of various chemical components of different kinds in medicinal plant samples [ 40 ]. Currently, FT-IR technology is widely used in the field of authenticity identification and chemical composition prediction for Chinese herbal medicines [ 41 , 42 ]. Yang et al established a partial least squares regression model for different geographical regions of Paris polyphylla var.…”

Section: Discussionmentioning

confidence: 99%

A Comprehensive Analysis to Elucidate the Effects of Spraying Mineral Elements on the Accumulation of Flavonoids in Epimedium sagittatum during the Harvesting Period

et al. 2023

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The harvesting period is a critical period for the accumulation of flavonoids in the leaves of the important medicinal plant Epimedium sagittatum. In this study, we conducted an experiment on E. sagittatum leaves sprayed with mineral elements with the aim of improving the quality of the herbal leafage during the harvesting period. We elucidated the changes in flavonoids (icariin, epimedin A, epimedin B, and epimedin C) in E. sagittatum leaves. The sum of main flavonoids content reached a maximum (11.74%) at 20 days after the high-concentration Fe2+ (2500 mg·L−1) treatment. We analyzed the FT-IR spectra characteristics of E. sagittatum leaf samples using the FT-IR technique, and constructed an OPLS-DA model and identified characteristic peaks to achieve differentiated identification of E. sagittatum. Further, widely untargeted metabolomic analysis identified different classes of metabolites. As the most important characteristic flavonoids, the relative contents of icariin, icaritin, icariside I, and icariside II were found to be up-regulated by high-Fe2+ treatment. Our experimental results demonstrate that high-concentration Fe2+ treatment is an effective measure to increase the flavonoids content in E. sagittatum leaves during the harvesting period, which can provide a scientific basis for the improvement of E. sagittatum leaf cultivation agronomic measures.

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“…Modern analytical techniques have been reported to play a key role in the detection of fraud in foods (Hong et al ., 2017). These techniques include FT‐IR spectroscopy in the detection of fraud in turmeric (Shannon et al ., 2022), polymerase chain reaction (PCR) in the detection of milk powder adulteration (Ewida & Abd El‐Magiud, 2018), Gas Chromatography–Mass Spectrometry (GC–MS) in the detection of adulterants in roasted coffee (Toci & Farah, 2014), and Raman hyperspectral imaging in the detection of wheat flour adulteration (Lohumi et al ., 2019). These modern techniques have demonstrated success in the detection of food fraud through adulteration.…”

Section: Introductionmentioning

confidence: 99%

Application of portable near‐infrared spectroscopy for rapid detection and quantification of adulterants in baobab fruit pulp

Yegon

Ojijo

Tybussek

et al. 2023

Int J of Food Sci Tech

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Baobab fruit pulp powder (BFPP) is susceptible to economically driven adulteration owing to its incredible nutrient density and rapidly expanding demand worldwide. In this study, a portable NIR spectroscopy (wavelength 900-1700 nm) coupled with chemometrics was used for the detection of BFPP adulteration. BFPP samples separately adulterated with rice flour (RF), wheat flour (WF), and maize flour (MF) at 0%, 1%, 3%, 5%, 10%, 15%, 20%, 25%, 30%, 40%, 50% and 60% concentrations were subjected to NIR spectroscopy. Two-class models proved to be reliable with sensitivity and specificity of above 0.98 and an error of below 0.01. Four-class models attained sensitivity and specificity of above 0.68 and an error of below 0.276. The correlation coefficient (R 2 ) and root mean square error (RMSE) of the prediction set were above 0.88 and below 6.20% respectively for PLSR models. The LODs were also below 13.79%. Therefore, NIR spectroscopy has a promising potential for rapid screening of BFPP adulterations.

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The detection and determination of adulterants in turmeric using fourier-transform infrared (FTIR) spectroscopy coupled to chemometric analysis and micro-FTIR imaging

Cited by 23 publications

References 11 publications

Incorporation of Nanocatalysts for the Production of Bio-Oil from Staphylea holocarpa Wood

Incorporation of Nanocatalysts for the Production of Bio-Oil from Staphylea holocarpa Wood

A Comprehensive Analysis to Elucidate the Effects of Spraying Mineral Elements on the Accumulation of Flavonoids in Epimedium sagittatum during the Harvesting Period

Application of portable near‐infrared spectroscopy for rapid detection and quantification of adulterants in baobab fruit pulp

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