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Least-squares support vector machines and near infrared spectroscopy for quantification of common adulterants in powdered milk.
This paper proposes the use of the least-squares support vector machine (LS-SVM) as an alternative multivariate calibration method for the simultaneous quantification of some common adulterantsExpand
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Classification of yerba mate (Ilex paraguariensis) according to the country of origin based on element concentrations
Abstract Yerba mate ( Ilex paraguariensis ), a widely consumed beverage in South America, is now also used worldwide. This study deals with a novel approach of characterization and identification ofExpand
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Horizontal attenuated total reflection applied to simultaneous determination of ash and protein contents in commercial wheat flour
Partial least-squares (PLS) regression was used to generate various models for the determination of both the protein and the ash contents of wheat flours by using spectroscopic data in theExpand
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Simultaneous determination of quality parameters of biodiesel/diesel blends using HATR-FTIR spectra and PLS, iPLS or siPLS regressions
Abstract Partial least-squares (PLS), interval partial least squares ( i PLS) and synergy partial least squares ( si PLS) regressions were used to simultaneous determination of quality parameters ofExpand
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Monitoring of efficacy of antimicrobial products during 60 days storage simulation of diesel (B0), biodiesel (B100) and blends (B7 and B10)
Abstract Microorganisms can cause many operational problems, particularly, during storage and handling of fuel systems. The susceptibility of diesel systems to microbial contamination has beenExpand
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Ceramer coatings from castor oil or epoxidized castor oil and tetraethoxysilane
New inorganic-organic hybrids were synthesized through the reaction of castor oil (CO) or epoxidized castor oil (ECO) with tetraethoxysilane (TEOS). The mass proportions of ECO/TEOS varied from 90∶10Expand
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Films based on neutralized chitosan citrate as innovative composition for cosmetic application.
In this work, citrate and acetate buffers, were investigated as neutralizers to chitosan salts in order to provide biocompatible and stable films. To choose the appropriate film composition for thisExpand
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Development of methodology for identification the nature of the polyphenolic extracts by FTIR associated with multivariate analysis.
Tannins are polyphenolic compounds of complex structures formed by secondary metabolism in several plants. These polyphenolic compounds have different applications, such as drugs, anti-corrosionExpand
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Quantification of Lactobacillus in fermented milk by multivariate image analysis with least-squares support-vector machines
This paper reports an approach for quantification of Lactobacillus in fermented milk, grown in a selective medium (MRS agar), by use of digital colour images of Petri plates easily obtained by use ofExpand
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Determination of cocaine and its main adulterants in seized drugs from Rio Grande do Sul, Brazil, by a Doehlert optimized LC-DAD method
The main reason for the increasing cocaine consumption in South America is the high consumption of drugs in Brazil, which is the largest market on the continent. In light of this, the BrazilianExpand
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