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Irrigation and light acess effects on Coffea arabica L. leaves by FTIR-chemometric analysis

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dc.contributor.author Sanchez, Patrícia M.
dc.contributor.author Pauli, Elis D.
dc.contributor.author Scheel, Guilherme L.
dc.contributor.author Rakocevic, Miroslava
dc.contributor.author Brunsc, Roy E.
dc.contributor.author Scarminio, Ieda S.
dc.date.accessioned 2022-04-02T13:43:23Z
dc.date.available 2022-04-02T13:43:23Z
dc.date.issued 2018
dc.identifier.citation SANCHEZ, P. M. et al. Irrigation and light acess effects on Coffea arabica L. leaves by FTIR-chemometric analysis. Journal of the Brazilian Chemical Society, São Paulo, v. 29, n. 1, p. 168-176, jan. 2018. pt_BR
dc.identifier.issn 1678-4790
dc.identifier.uri https://doi.org/10.21577/0103-5053.20170125 pt_BR
dc.identifier.uri http://www.sbicafe.ufv.br/handle/123456789/13410
dc.description.abstract Coffee bean chemical compositions has been extensively studied. However, there is a small amount of research on other parts of the coffee plant, including leaves. Fourier transform infrared (FTIR) spectral profiles of Coffea arabica L. cv. IAPAR 59 leaf extracts from a simplex-centroid design were studied by principal component analysis (PCA) to evaluate the effect of solvente extractor on its metabolites. PCA indicated that the extractor solvents containing ethanol were the most suitable for this study. FTIR spectra in conjunction with orthogonal signal correction and partial least squares-discrimination analysis (OSC-PLS-DA) were used to classify and discriminate the leaves of irrigated and non-irrigated plants by bands related to carbohydrates, amino acids and lipids. Leaves receiving different intensities of solar radiation were also discriminated by bands corresponding to caffeine, carbohydrates and lipids. FTIR spectral profile analyzed with chemometric tools showed to be a useful, powerful and simple procedure to discriminate coffee leaves collected from different microclimate conditions. pt_BR
dc.format pdf pt_BR
dc.language.iso en pt_BR
dc.publisher Sociedade Brasileira de Química pt_BR
dc.relation.ispartofseries Journal of the Brazilian Chemical Society;v.29, n.1, 2018
dc.rights Open Access pt_BR
dc.subject Coffea arabica leaves pt_BR
dc.subject Simplex-centroid design pt_BR
dc.subject FTIR spectroscopy pt_BR
dc.subject Chemometric analysis pt_BR
dc.subject Environmental conditions pt_BR
dc.subject.classification Cafeicultura::Cafeicultura irrigada pt_BR
dc.title Irrigation and light acess effects on Coffea arabica L. leaves by FTIR-chemometric analysis pt_BR
dc.type Artigo pt_BR

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