Kurtosis-based projection pursuit analysis to evaluate South American rapadura

Autor(es)

Baqueta, Michel Rocha ^[1] ; Pizano, Fernanda Peixoto ^[1] ; Villani, Juliana Damasceno ^[1] ; Henao Toro, Sandra Julieth ^[1] ; Arisseto Bragotto, Adriana Pavesi ^[1] ; Valderrama, Patricia ^[2] ; Lima Pallone, Juliana Azevedo ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Campinas, UNICAMP, Sch Food Engn, Dept Food Sci & Nutr, Campinas, SP - Brazil

^[2] Univ Tecnol Fed Parana UTFPR, Campo Mourao, Parana - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Food Chemistry; v. 368, JAN 30 2022.
• Citações Web of Science: 0

Resumo

Rapadura is an artisanal candy obtained from concentrated sugarcane juice. In this study, a differentiation between South American rapadura producers has been tried using a Kurtosis-based projection pursuit analysis (kPPA) concerning essential minerals, acrylamide, moisture contents, pH, and color. These parameters revealed significant inter-and intra-country differences. Based on the employed measurements, a multivariate exploration with kPPA extracted information from rapadura even though it is a very artisanal product and was effective in separating classes, especially Brazilian and Ecuadorian rapadura, where principal component analysis failed. Moreover, ellipse confidence regions showed significant differences between non-organic and organic rapadura from Colombia and Peru in granulated form. From a chemometric point of view, the application of kPPA can be used in cases when other metrics (as based on the variance) fail and can be useful in the exploratory analysis of complex multivariate chemical data. (AU)

• Processo FAPESP: 19/21062-0 - Descritores químicos e tecnologias verdes emergentes em combinação com quimiometria para caracterização e avaliação de cafés finos do Brasil
• Beneficiário: Michel Rocha Baqueta
• Modalidade de apoio: Bolsas no Brasil - Doutorado