Validation of the multivariate models for correlation between texture profile analysis, digital images, and NIR spectroscopy Keila Cristina da Silva, Thaysa Fernandes Moya Moreira, Ranielly Nogueira Cremonini, Ana Clara da Costa, Fernanda Vitória Leimann, et al. Analytical Methods, 2025 NIR spectroscopy, images with thermal and X-ray filters, conventional images, and PLS for the determination of texture profile analysis, mainly hardness, adhesiveness, springiness, chewiness, gumminess, cohesiveness, and resilience.
Discrimination of Phytosterol and Tocopherol Profiles in Soybean Cultivars Using Independent Component Analysis Olivio Fernandes Galãoa, Patrícia Valderrama, Luana Caroline de Figueiredo, Oscar Oliveira Santos Júnior, Alessandro Franscisco Martins, et al. Appliedchem, 2025 Soybean (Glycine max (L.) Merrill) is a major oilseed crop rich in phytosterols and tocopherols, compounds associated with functional and nutritional properties of vegetable oils. This study aimed to apply, for the first time, Independent Component Analysis (ICA) to discriminate the composition of phytosterols (β-sitosterol, campesterol, stigmasterol) and tocopherols (α, β, γ, δ) in 20 soybean genotypes—14 non-transgenic and six transgenic—cultivated in two major producing regions of Paraná state, Brazil (Londrina and Ponta Grossa). Lipophilic compounds were extracted from soybean seeds, quantified via gas chromatography and HPLC, and statistically analyzed using ICA with the JADE algorithm. The extracted independent components successfully differentiated soybean varieties based on phytochemical profiles. Notably, transgenic cultivars from Ponta Grossa exhibited higher levels of total tocopherols, including α- and β-tocopherol, while conventional cultivars from both regions showed elevated phytosterol content, particularly campesterol and stigmasterol. ICA proved to be a powerful unsupervised method for visualizing patterns in complex compositional data. These findings highlight the significant influence of genotype and growing region on the nutraceutical potential of soybean, and support the use of multivariate analysis as a strategic tool for cultivar selection aimed at enhancing functional quality in food applications.
A review of coffee quality assessment based on sensory evaluation and advanced analytical techniques Innovations in Coffee Quality, 2020
Arabica coffee evaluation concerning the degree of roasting: An approach by using smartphone and projection pursuit Innovations in Coffee Quality, 2020
On the feasibility of spectroscopy and curve resolution to detection of ethinylestradiol in sewage – Preliminary studies Brazilian Journal of Analytical Chemistry, 2017
Multi-product calibration: Preliminary studies to determine quality parameters in industrialized juices based on ultraviolet spectroscopy Brazilian Journal of Analytical Chemistry, 2014
Path-ComDim multi-block data analysis for the study of cachaça: Integrating sensory analysis with mass spectrometry EB da Silva Cruz, MR Baqueta, A Tfayli, S Tfaili, VHG Murakami, EJ Pilau, ... Chemometrics and Intelligent Laboratory Systems, 105728 , 2026 2026
AN EXPERIMENTAL PROPOSAL FOR TEACHING MCR-ALS. NS Perrud, E Cruz, NNM Deimling, P Valderrama QUIMICA NOVA 49 , 2026 2026
COMMON COMPONENT ANALYSIS: AN EXPLORATORY APPLICATION IN THE MINERAL WATER CHEMICAL COMPOSITION E Kruger, R Bonzanini, DN Rutledge, P Valderrama QUIMICA NOVA 49 , 2026 2026
Ultraviolet-visible spectroscopy and performance evaluation of chemometric tools: A sustainable alternative for classification of the fusarium sambucinum species complex ETS Caramês, JGS Caramês, VF Moraes-Neto, BG Bertozzi, ... Microchemical Journal, 116289 , 2025 2025
A novel and sustainable analytical strategy to control the origin and mitigate the fake coffee from Coffea canephora in Brazil MR Baqueta, PHGD Diniz, VF de Moraes Neto, EA Alves, P Valderrama, ... Food Control, 111750 , 2025 2025 Citations: 1
Discrimination of Phytosterol and Tocopherol Profiles in Soybean Cultivars Using Independent Component Analysis OF Galãoa, P Valderrama, LC de Figueiredo, OOS Júnior, AF Martins, ... AppliedChem 5 (3), 19 , 2025 2025
Bibliometric study and potential applications in smartphone-based digital images: A perspective from 2013 to 2024 M de Souza Zangirolami, P Valderrama, OO Santos Food Chemistry 482, 144106 , 2025 2025 Citations: 4
Path-ComDim multi-block data analysis in the cachaca investigation: Integrating sensory analysis with electronic and vibrational spectroscopies EB da Silva Cruz, MR Baqueta, DN Rutledge, P Valderrama Food Chemistry 481, 143894 , 2025 2025 Citations: 2
Path-ComDim multi-block data analysis in the cachaça investigation: Integrating sensory analysis with electronic and vibrational spectroscopies EB da Silva Cruz, MR Baqueta, DN Rutledge, P Valderrama Food Chemistry 481, 143894 , 2025 2025
Digital Images Assisted by Chemometrics to Verify Shelf-life of PANC Leaves FL Furlan, M Matsushita, A Coqueiro, P Valderrama 2025
A decision support alternative method through NIR spectroscopy and MCC-PCA in the evaluation of Salmonella spp. in bovine meat and bone meal TKM dos Santos, R Bonzanini, DN Rutledge, P Valderrama Food Research International 209, 116215 , 2025 2025 Citations: 2
Polyacrylamide hydrogel containing rice husk ash as internal curing agent in mortar/concrete EA de Almeida, FR Kruger, P Valderrama, R da Silva Gonzalez, EC Muniz Journal of Molecular Liquids 423, 127004 , 2025 2025 Citations: 8
Multiplatform Path-ComDim study of Capixaba, indigenous and non-indigenous Amazonian Canephora coffees MR Baqueta, DN Rutledge, EA Alves, M Mandrone, F Poli, A Coqueiro, ... Food Chemistry 463, 141485 , 2025 2025 Citations: 5
Validation of the multivariate models for correlation between texture profile analysis, digital images, and NIR spectroscopy KC da Silva, TFM Moreira, RN Cremonini, AC da Costa, FV Leimann, ... Analytical Methods 17 (35), 7118-7124 , 2025 2025 Citations: 1
A Correlation-Based Approach for Predicting Humic Substance Bioactivity from Direct Compost Characterization AC Silva, P Rocha, P Valderrama, J Antelo, D Geraldo, MF Proença, ... Molecules 30 (7), 1511 , 2025 2025 Citations: 5
A PEDAGOGIC-DIDATICAL PROPOSAL BY USING FREE SOFTWARE TO INTERPRET PCA Silva, Rebeca Fernanda de Souza e, NNM Deimling, P Valderrama QUIMICA NOVA 48 (2) , 2025 2025
Enhancing mass spectrometry interpretability by ComDim-ICA multi-block analysis: Geographical and varietal traceability of Brazilian Coffea canephora MR Baqueta, JAL Pallone, EJ Pilau, BHF Goulart, RB Rocha, ... Talanta 281, 126927 , 2025 2025 Citations: 6
A Practical Guide to Verify which Analytical Techniques and Organic Foods have Already been Investigated P Valderrama, P Valderrama, ARS Bruni Journal of the Brazilian Chemical Society 36 (3), e-20240208 , 2024 2024
Authentication of indigenous Brazilian specialty canephora coffees using smartphone image analysis MR Baqueta, MP Postigo, EA Alves, VF de Moraes Neto, P Valderrama, ... Food Research International 196, 115133 , 2024 2024 Citations: 14
Análise Multivariada de Imagem Digital e Espectro UV de Méis de Abelhas Nativas para Estimar Teores Totais de Fenólicos e Flavonoides MDCL Guerrero, LGB Martins, C Acorone, ES Rigobello, P Valderrama, ... Revista Virtual de Química 16 (5) , 2024 2024 Citations: 1
MOST CITED SCHOLAR PUBLICATIONS
Sensory and physico-chemical characteristics of desserts prepared with egg products processed by freeze and spray drying MN Jesús, AB Zanqui, P Valderrama, A Tanamati, SA Maruyama, ... Food Science and Technology (Campinas) 33 (3), 549-554 , 2013 2013.0 Citations: 305
Sensory and physico-chemical characteristics of desserts prepared with egg products processed by freeze and spray drying MN Jesus, AB Zanqui, P Valderrama, A Tanamati, SA Maruyama, ... Food Science and Technology 33 (3), 549-554 , 2013 2013.0 Citations: 305
Variable selection, outlier detection, and figures of merit estimation in a partial least-squares regression multivariate calibration model. A case study for the determination … P Valderrama, JWB Braga, RJ Poppi Journal of agricultural and food chemistry 55 (21), 8331-8338 , 2007 2007.0 Citations: 214
Estado da arte de figuras de mérito em calibração multivariada P Valderrama, JWB Braga, RJ Poppi Quim. Nova 32 (5), 1278-1287 , 2009 2009.0 Citations: 211
Support vector machines in tandem with infrared spectroscopy for geographical classification of green arabica coffee E Bona, I Marquetti, JV Link, GYF Makimori, V da Costa Arca, ALG Lemes, ... LWT-Food Science and Technology 76, 330-336 , 2017 2017.0 Citations: 154
Support vector machines in tandem with infrared spectroscopy for geographical classification of green arabica coffee E Bona, I Marquetti, JV Link, GYF Makimori, V da Costa Arca, ALG Lemes, ... LWT-Food Science and Technology 76, 330-336 , 2017 2017.0 Citations: 154
Partial least square with discriminant analysis and near infrared spectroscopy for evaluation of geographic and genotypic origin of arabica coffee I Marquetti, JV Link, ALG Lemes, MB dos Santos Scholz, P Valderrama, ... Computers and Electronics in Agriculture 121, 313-319 , 2016 2016.0 Citations: 145
Validation of multivariate calibration models in the determination of sugar cane quality parameters by near infrared spectroscopy P Valderrama, JWB Braga, RJ Poppi Journal of the Brazilian Chemical Society 18 (2), 259-266 , 2007 2007.0 Citations: 100
Thermal edible oil evaluation by UV–Vis spectroscopy and chemometrics RP Gonçalves, PH Março, P Valderrama Food Chemistry 163, 83-86 , 2014 2014.0 Citations: 94
TPCS/PBAT blown extruded films added with curcumin as a technological approach for active packaging materials SS de Campos, A de Oliveira, TFM Moreira, TBV da Silva, MV da Silva, ... Food Packaging and Shelf Life 22, 100424 , 2019 2019.0 Citations: 89
Evaluation of total polyphenol content of wines by means of voltammetric techniques: Cyclic voltammetry vs differential pulse voltammetry  Vilas-Boas, P Valderrama, N Fontes, D Geraldo, F Bento Food chemistry 276, 719-725 , 2019 2019.0 Citations: 87
Brazilian Coffee Blends: A Simple and Fast Method by Near‐Infrared Spectroscopy for the Determination of the Sensory Attributes Elicited in Professional Coffee Cupping MR Baqueta, A Coqueiro, P Valderrama Journal of food science 84 (6), 1247-1255 , 2019 2019.0 Citations: 79
Quantitative assessment of specific defects in roasted ground coffee via infrared-photoacoustic spectroscopy RCE Dias, P Valderrama, PH Março, MB dos Santos Scholz, M Edelmann, ... Food chemistry 255, 132-138 , 2018 2018.0 Citations: 74
Efeito do tratamento térmico sobre a atividade de peroxidase (POD) e polifenoloxidase (PPO) em maçã (Mallus comunis) P Valderrama, M Fabiane, E Clemente Ciência e Tecnologia de Alimentos 21 (3), 321-325 , 2001 2001.0 Citations: 73
Multivariate curve resolution with alternating least squares: description, operation and aplications PH Março, P Valderrama, GL Alexandrino, RJ Poppi, R Tauler Química Nova 37 (9), 1525-1532 , 2014 2014.0 Citations: 71
Multivariate curve resolution with alternating least squares: Description, operation and aplications PH Março, P Valderrama, GL Alexandrino, RJ Poppi, R Tauler Química Nova 37 (9), 1525-1532 , 2014 2014.0 Citations: 71
Multivariate curve resolution with alternating least squares: description, operation and aplications PH Março, P Valderrama, GL Alexandrino, RJ Poppi, R Tauler Química Nova 37 (9), 1525-1532 , 2014 2014.0 Citations: 71
Near-infrared spectroscopy and multivariate calibration as an alternative to the Agtron to predict roasting degrees in coffee beans and ground coffees F de Carvalho Pires, RGFA Pereira, MR Baqueta, P Valderrama, ... Food Chemistry 365, 130471 , 2021 2021.0 Citations: 62
Multivariate classification for the direct determination of cup profile in coffee blends via handheld near-infrared spectroscopy MR Baqueta, A Coqueiro, PH Março, P Valderrama Talanta 222, 121526 , 0 Citations: 60
A procedure to facilitate the choice of the number of factors in multi-way data analysis applied to the natural samples: Application to monitoring the thermal degradation of … P Valderrama, PH Março, N Locquet, F Ammari, DN Rutledge Chemometrics and Intelligent Laboratory Systems 106 (2), 166-172 , 2011 2011.0 Citations: 55
