Search Results - "Fernandes, David Douglas"
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One-Class Classification Models for the Authentication of Analgesic Tablet Reference Medicine Using Differential Scanning Calorimetry and Visible-Near Infrared Spectroscopy
Published in Journal of the Brazilian Chemical Society (01-02-2023)“…The aim of this study was to develop a fast, simple and accurate analytical method for the classification of reference tablet analgesic drugs containing…”
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2
Using near infrared spectroscopy to classify soybean oil according to expiration date
Published in Food chemistry (01-04-2016)“…•We proposed method to screening of soybean oil with respect to the conservation state.•We used near infrared spectroscopy and chemometric tools.•Successive…”
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3
Using color histograms and SPA-LDA to classify bacteria
Published in Analytical and bioanalytical chemistry (01-09-2014)“…In this work, a new approach is proposed to verify the differentiating characteristics of five bacteria ( Escherichia coli , Enterococcus faecalis ,…”
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4
Honey authentication in terms of its adulteration with sugar syrups using UV–Vis spectroscopy and one-class classifiers
Published in Food chemistry (15-12-2021)“…[Display omitted] •Honey adulteration with corn syrup, agave syrup, and sugarcane molasses under study.•Sample preparation involves dilution in water…”
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Biodiesel/Diesel Blends Classification with Respect to Base Oil Using NIR Spectrometry and Chemometrics Tools
Published in Journal of the American Oil Chemists' Society (01-07-2012)“…In this work, rapid and non-destructive methodology is proposed for screening of biodiesel/diesel blends with respect to the base oil, using near infrared…”
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6
Variable selection in the chemometric treatment of food data: A tutorial review
Published in Food chemistry (15-02-2022)“…•Instrumental analysis of food generates of a large volume of information per sample.•Discarding non-informative and/or redundant signals through variable…”
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7
Simultaneous determination of goat milk adulteration with cow milk and their fat and protein contents using NIR spectroscopy and PLS algorithms
Published in Food science & technology (01-06-2020)“…This work employed NIR spectroscopy and PLS algorithms for the identification and quantification of goat milk adulteration by adding cow milk, besides the…”
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8
Tea authentication and determination of chemical constituents using digital image-based fingerprint signatures and chemometrics
Published in Food chemistry (30-09-2023)“…[Display omitted] •A chemometrics-assisted color histogram-based system used for tea quality analysis;•Fingerprint signatures from digital images used as…”
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Qualitative and quantitative analysis based on digital images to determine the adulteration of ketchup samples with Sudan I dye
Published in Food chemistry (30-10-2020)“…•Adulteration in ketchup by adding illegal Sudan I dye.•An eco-friendly methodology based on colour histograms is proposed.•Multivariate analysis to identify…”
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10
Non-destructive authentication of Gourmet ground roasted coffees using NIR spectroscopy and digital images
Published in Food chemistry (01-12-2021)“…[Display omitted] •Brazilian Gourmet, Superior, and Traditional ground roasted coffees under study.•Gourmet coffee authentication via NIR spectroscopy and…”
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11
Authentication of grated hard cheeses and quantification of adulteration by FT-NIR spectroscopy and multivariate analysis
Published in International dairy journal (01-11-2024)“…This work proposes the use of Near Infrared Spectroscopy (NIR) and multivariate analysis to identify and quantify potential adulterants in grated hard cheeses…”
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12
Feasibility study on quantification and authentication of the cassava starch content in wheat flour for bread-making using NIR spectroscopy and digital images
Published in Food chemistry (30-01-2022)“…[Display omitted] •Determination/authentication of cassava starch content in wheat flour under study;•Different pre-processed NIR spectra and color histograms…”
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13
Combining NIR spectroscopy with DD‐SIMCA for authentication and iSPA‐PLS‐DA for discrimination of ethyl route and oil feedstocks of biodiesels in biodiesel/diesel blends
Published in Journal of the American Oil Chemists' Society (01-02-2024)“…The main biofuels produced on an industrial large scale are biodiesel and ethanol, which are the most economically viable and widely implemented solutions to…”
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14
Determination of fat content in chicken hamburgers using NIR spectroscopy and the Successive Projections Algorithm for interval selection in PLS regression (iSPA-PLS)
Published in Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy (15-01-2018)“…Determining fat content in hamburgers is very important to minimize or control the negative effects of fat on human health, effects such as cardiovascular…”
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An eco-friendly analytical methodology based on digital images for quality control of commercial Mikania glomerata syrups
Published in Microchemical journal (01-07-2022)“…[Display omitted] •Color histograms in the Grayscale, RGB, and HSI were used as analytical fingerprint of the samples.•Coumarin contents of 19.39 to…”
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16
Digital image-based tracing of geographic origin, winemaker, and grape type for red wine authentication
Published in Food chemistry (15-05-2020)“…•Brazilian red wines from São Francisco valley were studied.•Classification of geographic origin, winemaker, and grape type were achieved.•An Eco-friendly…”
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17
Digital image-based classification of biodiesel
Published in Talanta (Oxford) (01-07-2015)“…This work proposes a simple, rapid, inexpensive, and non-destructive methodology based on digital images and pattern recognition techniques for classification…”
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18
Multivariate calibration strategies for the simultaneous quantification of aluminium and vanadium in Ti6Al4V alloys
Published in Chemometrics and intelligent laboratory systems (15-03-2024)“…The detection of wear tribocorrosion residues released from orthopaedic implants, such as aluminium and vanadium liberated from Ti6Al4V alloys, is essential to…”
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Quantification and identification of adulteration in the fat content of chicken hamburgers using digital images and chemometric tools
Published in Food science & technology (01-02-2019)“…In this work, we developed an eco-friendly methodology for quantification and identification of adulteration in the fat content of chicken hamburgers by…”
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Assessing the Quality of Wheat Flour Blended with Cassava Starch Using a Handheld NIR Spectrophotometer and Chemometrics
Published in Journal of the Brazilian Chemical Society (2025)“…This work developed an effective and eco-friendly analytical method to support quality control for Brazilian Bill proposal No. 5332/2009. The bill advocates…”
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